TY  - CONF
AU  - Mladenović, Ivana
AU  - Obradov, Marko
AU  - Rašljić-Rafajilović, Milena
AU  - Jakšić, Zoran
AU  - Jakšić, Olga
AU  - Vasiljević Radović, Dana
AU  - Lamovec, Jelena
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7520
AB  - Plasmonic  biochemical  sensors,  as  a  subgroup  of  optical  refractometric  sensors,  are  a  topic  of  rapid  research  and  development  due  to  their  ability  to  detect  trace  amounts  of  biochemical agents, even allowing detection of a single molecule. As such, plasmonic sensors find wide  applications  in  forensic  engineering,  medicine  and  clinical  diagnostics,  food  processing,  environmental protection, and many more. Additionally, the use of plasmonic metametrials is not limited to sensing, and they can be used in various fields paramount to forensic sciences, such  as  enhanced  microscopy  and  spectroscopy,  photodetector  enhancement  (entire  optical  range – UV, VIS, and IR light), signal processing, etc.
PB  - Belgrade : University of Criminal Investigation and Police Studies
C3  - XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia
T1  - Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications
SP  - 79
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_cer_7520
ER  - 

@conference{
author = "Mladenović, Ivana and Obradov, Marko and Rašljić-Rafajilović, Milena and Jakšić, Zoran and Jakšić, Olga and Vasiljević Radović, Dana and Lamovec, Jelena",
year = "2023",
abstract = "Plasmonic  biochemical  sensors,  as  a  subgroup  of  optical  refractometric  sensors,  are  a  topic  of  rapid  research  and  development  due  to  their  ability  to  detect  trace  amounts  of  biochemical agents, even allowing detection of a single molecule. As such, plasmonic sensors find wide  applications  in  forensic  engineering,  medicine  and  clinical  diagnostics,  food  processing,  environmental protection, and many more. Additionally, the use of plasmonic metametrials is not limited to sensing, and they can be used in various fields paramount to forensic sciences, such  as  enhanced  microscopy  and  spectroscopy,  photodetector  enhancement  (entire  optical  range – UV, VIS, and IR light), signal processing, etc.",
publisher = "Belgrade : University of Criminal Investigation and Police Studies",
journal = "XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia",
title = "Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications",
pages = "79-80",
url = "https://hdl.handle.net/21.15107/rcub_cer_7520"
}

Mladenović, I., Obradov, M., Rašljić-Rafajilović, M., Jakšić, Z., Jakšić, O., Vasiljević Radović, D.,& Lamovec, J.. (2023). Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications. in XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia
Belgrade : University of Criminal Investigation and Police Studies., 79-80.
https://hdl.handle.net/21.15107/rcub_cer_7520

Mladenović I, Obradov M, Rašljić-Rafajilović M, Jakšić Z, Jakšić O, Vasiljević Radović D, Lamovec J. Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications. in XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia. 2023;:79-80.
https://hdl.handle.net/21.15107/rcub_cer_7520 .

Mladenović, Ivana, Obradov, Marko, Rašljić-Rafajilović, Milena, Jakšić, Zoran, Jakšić, Olga, Vasiljević Radović, Dana, Lamovec, Jelena, "Analysis and interpretation of bimetallic plasmonic metamaterial properties for forensic applications" in XIII international scientific conference “Archibald Reiss days”, Book of abstracts,  8-9 November 2023, Belgrade, Serbia (2023):79-80,
https://hdl.handle.net/21.15107/rcub_cer_7520 .

TY  - CONF
AU  - Obradov, Marko
AU  - Jakšić, Zoran
AU  - Mladenović, Ivana
AU  - Rašljić-Rafajilović, Milena
AU  - Vasiljević-Radović, Dana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6759
AB  - Metasurfaces are one of the most attractive research fields in recent years, in no small measure due to their use as refractometric sensors with unparalleled sensitivity, enabling sensing of even single atoms or molecules. This sensitivity is rooted in their ability to localize electromagnetic fields in volumes orders of magnitude below the diffraction limit. This is achieved by special geometry and refractive index contrast of metasurface nanocomposites. A plethora of both conductive (metals, TCO, graphene, MXenes...) and dielectric (oxides, semiconductors) materials can be used, all of them bringing different functionalities which further enhance the freedom of design when tailoring metasurfaces. However, the fundamental sensing mechanism is practically identical across all platforms and is based on the spectral shift of transmission or reflection due to a difference in the values of the real parts of refractive index between analyte and the environment. 
Here we propose an alternative approach, the use of exceptional capabilities of optical metasurfaces in transforming optical space to sense analytes with identical real parts of refractive index but different imaginary parts (losses). This is becoming increasingly important with the need to detect airborne viruses. We propose a metasurface formed by cruciform openings in a thin silicon layer on a SiO2 substrate, as shown in Fig. 1a. The structure is suspended in the air. For our FEM simulation we used measured values for Si and SiO2 refractive index taken from literature. The electric field distribution and its circular power flow, both at a wavelength of 630 nm, are shown in Fig. 1b. We gradually increase the imaginary part of the refractive index in the cruciform openings, starting with the lossless case, while maintaining the real part of refractive index equal to unity (air). The dispersive properties that depend on the value of the imaginary part are shown in Fig. 1c. The circular power flow that increases the optical path, the field localization and intrinsically low losses of the structure in the visible range all cause that adding even the smallest volumes of analyte with slightly increased optical absorption in comparison to the metasurface significantly reduces transmission through the structure, despite the exceptionally low structure thickness.
PB  - Belgrade : Vinča Institute of Nuclear Sciences – National Institute of the Republic of  Serbia, University of Belgrade
C3  - Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia
T1  - All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index
SP  - 127
EP  - 127
UR  - https://hdl.handle.net/21.15107/rcub_cer_6759
ER  - 

@conference{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Rašljić-Rafajilović, Milena and Vasiljević-Radović, Dana",
year = "2023",
abstract = "Metasurfaces are one of the most attractive research fields in recent years, in no small measure due to their use as refractometric sensors with unparalleled sensitivity, enabling sensing of even single atoms or molecules. This sensitivity is rooted in their ability to localize electromagnetic fields in volumes orders of magnitude below the diffraction limit. This is achieved by special geometry and refractive index contrast of metasurface nanocomposites. A plethora of both conductive (metals, TCO, graphene, MXenes...) and dielectric (oxides, semiconductors) materials can be used, all of them bringing different functionalities which further enhance the freedom of design when tailoring metasurfaces. However, the fundamental sensing mechanism is practically identical across all platforms and is based on the spectral shift of transmission or reflection due to a difference in the values of the real parts of refractive index between analyte and the environment. 
Here we propose an alternative approach, the use of exceptional capabilities of optical metasurfaces in transforming optical space to sense analytes with identical real parts of refractive index but different imaginary parts (losses). This is becoming increasingly important with the need to detect airborne viruses. We propose a metasurface formed by cruciform openings in a thin silicon layer on a SiO2 substrate, as shown in Fig. 1a. The structure is suspended in the air. For our FEM simulation we used measured values for Si and SiO2 refractive index taken from literature. The electric field distribution and its circular power flow, both at a wavelength of 630 nm, are shown in Fig. 1b. We gradually increase the imaginary part of the refractive index in the cruciform openings, starting with the lossless case, while maintaining the real part of refractive index equal to unity (air). The dispersive properties that depend on the value of the imaginary part are shown in Fig. 1c. The circular power flow that increases the optical path, the field localization and intrinsically low losses of the structure in the visible range all cause that adding even the smallest volumes of analyte with slightly increased optical absorption in comparison to the metasurface significantly reduces transmission through the structure, despite the exceptionally low structure thickness.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences – National Institute of the Republic of  Serbia, University of Belgrade",
journal = "Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia",
title = "All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index",
pages = "127-127",
url = "https://hdl.handle.net/21.15107/rcub_cer_6759"
}

Obradov, M., Jakšić, Z., Mladenović, I., Rašljić-Rafajilović, M.,& Vasiljević-Radović, D.. (2023). All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index. in Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia
Belgrade : Vinča Institute of Nuclear Sciences – National Institute of the Republic of  Serbia, University of Belgrade., 127-127.
https://hdl.handle.net/21.15107/rcub_cer_6759

Obradov M, Jakšić Z, Mladenović I, Rašljić-Rafajilović M, Vasiljević-Radović D. All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index. in Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia. 2023;:127-127.
https://hdl.handle.net/21.15107/rcub_cer_6759 .

Obradov, Marko, Jakšić, Zoran, Mladenović, Ivana, Rašljić-Rafajilović, Milena, Vasiljević-Radović, Dana, "All-dielectric optical metasurfaces for sensing of substances with identical real parts of refractive index" in Book of abstracts - IX International School and Conference on Photonics PHOTONICA2023, August 28 - September 01, 2023, Belgrade, Serbia (2023):127-127,
https://hdl.handle.net/21.15107/rcub_cer_6759 .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Vuksanović, Marija
AU  - Jovanov, Vladislav
AU  - Radovanović, Željko
AU  - Obradov, Marko
AU  - Nikolić, Nebojša D.
AU  - Vasiljević-Radović, Dana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6778
AB  - Electrochemically deposited nickel coatings from
sulfamate baths without/with lab-made biosilica (SiO2) particles on
the Si(100) substrate were produced. Different galvanostatic
regimes were used: direct current (DC), pulse current (PC), and
pulse-reverse current (PRC) regimes. The phase structure of the
synthesized silica nanoparticles from rice husks was obtained using
XRD and FE-SEM. The MMC-Ni/SiO2 and free Ni coatings were
characterized using FE-SEM, AFM, the micro indentation Vickers
technique, and the drop sessile method in order to investigate
structure, roughness, microhardness, and wettability. The optimal
deposition parameters were obtained with an emphasis on their
potential application as micro mounting coatings.
PB  - Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.
C3  - Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia
T1  - Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks
SP  - 241
EP  - 244
UR  - https://hdl.handle.net/21.15107/rcub_cer_6778
ER  - 

@conference{
author = "Mladenović, Ivana and Vuksanović, Marija and Jovanov, Vladislav and Radovanović, Željko and Obradov, Marko and Nikolić, Nebojša D. and Vasiljević-Radović, Dana",
year = "2023",
abstract = "Electrochemically deposited nickel coatings from
sulfamate baths without/with lab-made biosilica (SiO2) particles on
the Si(100) substrate were produced. Different galvanostatic
regimes were used: direct current (DC), pulse current (PC), and
pulse-reverse current (PRC) regimes. The phase structure of the
synthesized silica nanoparticles from rice husks was obtained using
XRD and FE-SEM. The MMC-Ni/SiO2 and free Ni coatings were
characterized using FE-SEM, AFM, the micro indentation Vickers
technique, and the drop sessile method in order to investigate
structure, roughness, microhardness, and wettability. The optimal
deposition parameters were obtained with an emphasis on their
potential application as micro mounting coatings.",
publisher = "Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.",
journal = "Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia",
title = "Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks",
pages = "241-244",
url = "https://hdl.handle.net/21.15107/rcub_cer_6778"
}

Mladenović, I., Vuksanović, M., Jovanov, V., Radovanović, Ž., Obradov, M., Nikolić, N. D.,& Vasiljević-Radović, D.. (2023). Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks. in Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia
Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.., 241-244.
https://hdl.handle.net/21.15107/rcub_cer_6778

Mladenović I, Vuksanović M, Jovanov V, Radovanović Ž, Obradov M, Nikolić ND, Vasiljević-Radović D. Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks. in Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia. 2023;:241-244.
https://hdl.handle.net/21.15107/rcub_cer_6778 .

Mladenović, Ivana, Vuksanović, Marija, Jovanov, Vladislav, Radovanović, Željko, Obradov, Marko, Nikolić, Nebojša D., Vasiljević-Radović, Dana, "Metal Matrix Composite Coatings Based on Ni Matrix and Biosilica Filers Obtained from Rice Husks" in Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia (2023):241-244,
https://hdl.handle.net/21.15107/rcub_cer_6778 .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Vuksanović, Marija
AU  - Obradov, Marko
AU  - Jovanov, Vladislav
AU  - Vorkapić, Miloš
AU  - Nikolić, Nebojša D.
AU  - Vasiljević-Radović, Dana
PY  - 2023
UR  - https://www.etran.rs/2023/E_PROCEEDINGS_ICETRAN_2023/IcETRAN23_RADOVI/MOI1.3.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6253
AB  - In this study, different forms of copper films were
electrodeposited (ED) on silicon wafer, copper and brass foils.
The effect of monocrystalline Si(111) surface cleaning method
and electrodeposition conditions and regimes (frequency in the
pulsating current (PC) regime, an addition of additives in
electrolyte for the constant galvanostatic (DC) regime, and
thickness) on surface morphology and wettability of copper films
was investigated. Optical microscopy equipped with highresolution camera, scanning electron microscopy (SEM) and an
atomic force microscopy (AFM) were used for thin film
characterization and to evaluate wettability of copper films. The
sessile drop method was used for the measurement of water
contact angle. According to the obtained results, choice of
electrolyte used in ED greatly affects wettability of copper films.
It was also shown that copper films electrodeposited from basic
sulfate electrolyte with varying current regimes frequencies,
thicknesses, and cathode types have opposite trends between
roughness parameter values and the water contact angle value.
Structural-morphological changes of a film or bulk solid surface
are key parameters in determining wettability properties and the
analysis of the wetting angle oscillations, but not the only one.
PB  - Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering
C3  - Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H
T1  - Wettability of electrodeposited copper films and correlation with morphology and surface chemistry
VL  - MOI1.3-6
SP  - MOI1.3-1
UR  - https://hdl.handle.net/21.15107/rcub_cer_6253
ER  - 

@conference{
author = "Mladenović, Ivana and Vuksanović, Marija and Obradov, Marko and Jovanov, Vladislav and Vorkapić, Miloš and Nikolić, Nebojša D. and Vasiljević-Radović, Dana",
year = "2023",
abstract = "In this study, different forms of copper films were
electrodeposited (ED) on silicon wafer, copper and brass foils.
The effect of monocrystalline Si(111) surface cleaning method
and electrodeposition conditions and regimes (frequency in the
pulsating current (PC) regime, an addition of additives in
electrolyte for the constant galvanostatic (DC) regime, and
thickness) on surface morphology and wettability of copper films
was investigated. Optical microscopy equipped with highresolution camera, scanning electron microscopy (SEM) and an
atomic force microscopy (AFM) were used for thin film
characterization and to evaluate wettability of copper films. The
sessile drop method was used for the measurement of water
contact angle. According to the obtained results, choice of
electrolyte used in ED greatly affects wettability of copper films.
It was also shown that copper films electrodeposited from basic
sulfate electrolyte with varying current regimes frequencies,
thicknesses, and cathode types have opposite trends between
roughness parameter values and the water contact angle value.
Structural-morphological changes of a film or bulk solid surface
are key parameters in determining wettability properties and the
analysis of the wetting angle oscillations, but not the only one.",
publisher = "Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering",
journal = "Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H",
title = "Wettability of electrodeposited copper films and correlation with morphology and surface chemistry",
volume = "MOI1.3-6",
pages = "MOI1.3-1",
url = "https://hdl.handle.net/21.15107/rcub_cer_6253"
}

Mladenović, I., Vuksanović, M., Obradov, M., Jovanov, V., Vorkapić, M., Nikolić, N. D.,& Vasiljević-Radović, D.. (2023). Wettability of electrodeposited copper films and correlation with morphology and surface chemistry. in Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H
Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering., MOI1.3-6, MOI1.3-1.
https://hdl.handle.net/21.15107/rcub_cer_6253

Mladenović I, Vuksanović M, Obradov M, Jovanov V, Vorkapić M, Nikolić ND, Vasiljević-Radović D. Wettability of electrodeposited copper films and correlation with morphology and surface chemistry. in Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H. 2023;MOI1.3-6:MOI1.3-1.
https://hdl.handle.net/21.15107/rcub_cer_6253 .

Mladenović, Ivana, Vuksanović, Marija, Obradov, Marko, Jovanov, Vladislav, Vorkapić, Miloš, Nikolić, Nebojša D., Vasiljević-Radović, Dana, "Wettability of electrodeposited copper films and correlation with morphology and surface chemistry" in Proceedings, X International conference IcETRAN, 05 - 08.06.2023, East Sarajevo, B&H, MOI1.3-6 (2023):MOI1.3-1,
https://hdl.handle.net/21.15107/rcub_cer_6253 .

Mladenović, I., Vorkapić, M., Pergal, M., Ivanov, T., Baltić, M., Obradov, M.,& Vasiljević-Radović, D.. (2023). Primena metodologije odzivnih površina (RSM) u cilju optimizacije eksperimentalnih parametara 3D-štampe i postizanja boljih mehaničkih performansi štampanih elemenata. 
University of Belgrade - Institute of Chemistry, Technology and Metallurgy..
https://hdl.handle.net/21.15107/rcub_cer_6931

Mladenović I, Vorkapić M, Pergal M, Ivanov T, Baltić M, Obradov M, Vasiljević-Radović D. Primena metodologije odzivnih površina (RSM) u cilju optimizacije eksperimentalnih parametara 3D-štampe i postizanja boljih mehaničkih performansi štampanih elemenata. 2023;.
https://hdl.handle.net/21.15107/rcub_cer_6931 .

Mladenović, Ivana, Vorkapić, Miloš, Pergal, Marija, Ivanov, Toni, Baltić, Marija, Obradov, Marko, Vasiljević-Radović, Dana, "Primena metodologije odzivnih površina (RSM) u cilju optimizacije eksperimentalnih parametara 3D-štampe i postizanja boljih mehaničkih performansi štampanih elemenata" (2023),
https://hdl.handle.net/21.15107/rcub_cer_6931 .

TY  - CONF
AU  - Obradov, Marko
AU  - Jakšić, Zoran
AU  - Mladenović, Ivana
AU  - Pešić, Ivan
AU  - Pergal, Marija
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6779
AB  - Nanocomposites are among the most prominent subjects of material science and enable an enormous number of applications in diverse areas. They are of immense importance for micro and nanoelectronics, sensorics and photonics. They allow one to embed, tailor and program not only the fundamental material properties (a typical example being different metamaterials with traits usually not met in nature) but also to impart multifunctionalities to them. Here we consider a plasmonic metamaterial nanocomposite built of MXene strips suspended in a dielectric host. We numerically analyzed the influence of nanostrip orientation and ordering on the metamaterial properties. We utilized finite element method (FEM) for our electromagnetic simulations. We enhanced our stochastic nanocomposite metamaterial structure by adding a conductive backplate to further increase its optical absorption. The proposed multifunctional MXene-based metametamaterials can be used as a basis for refractometric sensors of any physical quantity that can modify nanostrips orientation, including mechanical sensing. Combining traditional and novel plasmonic approach to optical absorbers structure allows for a relatively simple “bottom up” approach to broadband optical superabsorber design.
PB  - Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.
C3  - Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia
T1  - MXene Nanostrip Plasmonic Metamaterials for Mechanical Sensing and Enhanced Optical Absorption
SP  - 233
EP  - 236
UR  - https://hdl.handle.net/21.15107/rcub_cer_6779
ER  - 

@conference{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Pešić, Ivan and Pergal, Marija",
year = "2023",
abstract = "Nanocomposites are among the most prominent subjects of material science and enable an enormous number of applications in diverse areas. They are of immense importance for micro and nanoelectronics, sensorics and photonics. They allow one to embed, tailor and program not only the fundamental material properties (a typical example being different metamaterials with traits usually not met in nature) but also to impart multifunctionalities to them. Here we consider a plasmonic metamaterial nanocomposite built of MXene strips suspended in a dielectric host. We numerically analyzed the influence of nanostrip orientation and ordering on the metamaterial properties. We utilized finite element method (FEM) for our electromagnetic simulations. We enhanced our stochastic nanocomposite metamaterial structure by adding a conductive backplate to further increase its optical absorption. The proposed multifunctional MXene-based metametamaterials can be used as a basis for refractometric sensors of any physical quantity that can modify nanostrips orientation, including mechanical sensing. Combining traditional and novel plasmonic approach to optical absorbers structure allows for a relatively simple “bottom up” approach to broadband optical superabsorber design.",
publisher = "Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.",
journal = "Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia",
title = "MXene Nanostrip Plasmonic Metamaterials for Mechanical Sensing and Enhanced Optical Absorption",
pages = "233-236",
url = "https://hdl.handle.net/21.15107/rcub_cer_6779"
}

Obradov, M., Jakšić, Z., Mladenović, I., Pešić, I.,& Pergal, M.. (2023). MXene Nanostrip Plasmonic Metamaterials for Mechanical Sensing and Enhanced Optical Absorption. in Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia
Electron Devices Society of the IInstitute of electrical and electronics engineers, inc.., 233-236.
https://hdl.handle.net/21.15107/rcub_cer_6779

Obradov M, Jakšić Z, Mladenović I, Pešić I, Pergal M. MXene Nanostrip Plasmonic Metamaterials for Mechanical Sensing and Enhanced Optical Absorption. in Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia. 2023;:233-236.
https://hdl.handle.net/21.15107/rcub_cer_6779 .

Obradov, Marko, Jakšić, Zoran, Mladenović, Ivana, Pešić, Ivan, Pergal, Marija, "MXene Nanostrip Plasmonic Metamaterials for Mechanical Sensing and Enhanced Optical Absorption" in Proceedings - 33rd International Conference on Microelectronics, MIEL 2023 IEEE, October 16th -18th, 2023, Niš, Serbia (2023):233-236,
https://hdl.handle.net/21.15107/rcub_cer_6779 .

TY  - JOUR
AU  - Obradov, Marko
AU  - Jakšić, Zoran
AU  - Mladenović, Ivana
AU  - Bartula, Anja
AU  - Jakšić, Olga
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5689
AB  - New materials are of essential importance for the advancement of nanophotonics and nanoplasmonics. Numerous electromagnetic modes, especially various evanescent surface waves, prove themselves useful in multitudinous practical applications. Here we investigate the use of MXenes as alternative plasmonic materials in freestanding (substrateless) planar nanocomposites that support the existence of Tamm plasmon polaritons (TPP). We use finite element simulations to consider the influence of using MXenes on the propagation and distribution of TPP and the difference in their electromagnetic behavior compared to that of commonly used noble metals. While MXenes allow for somewhat weaker coupling between incident light and TPP, even the thinnest MXene layers practically completely screen the structure behind them. Our diffraction grating-enhanced stacks achieved incident light direction-dependent improvement of the coupling strength and polarization-dependent hybridization of electromagnetic states. MXene ensures improvements in functionality, especially spectral, directional, and polarization selectivity, by imparting rich modal behavior. Importantly, we observed high optical asymmetry of reflectance when illuminating the structures from opposite directions and obtained large high-to-low reflection ratios with a very small number of dielectric layers in the capping 1D photonic crystal. We conclude that MXenes represent a viable alternative for TPP-supporting structures, offering many advantages.
PB  - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
T2  - Coatings
T1  - MXenes as Alternative Plasmonic Coatings on 1D Photonic Crystals Platforms for Tamm Plasmon Polaritons
VL  - 13
IS  - 1
SP  - 198
DO  - 10.3390/coatings13010198
ER  - 

@article{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Bartula, Anja and Jakšić, Olga",
year = "2023",
abstract = "New materials are of essential importance for the advancement of nanophotonics and nanoplasmonics. Numerous electromagnetic modes, especially various evanescent surface waves, prove themselves useful in multitudinous practical applications. Here we investigate the use of MXenes as alternative plasmonic materials in freestanding (substrateless) planar nanocomposites that support the existence of Tamm plasmon polaritons (TPP). We use finite element simulations to consider the influence of using MXenes on the propagation and distribution of TPP and the difference in their electromagnetic behavior compared to that of commonly used noble metals. While MXenes allow for somewhat weaker coupling between incident light and TPP, even the thinnest MXene layers practically completely screen the structure behind them. Our diffraction grating-enhanced stacks achieved incident light direction-dependent improvement of the coupling strength and polarization-dependent hybridization of electromagnetic states. MXene ensures improvements in functionality, especially spectral, directional, and polarization selectivity, by imparting rich modal behavior. Importantly, we observed high optical asymmetry of reflectance when illuminating the structures from opposite directions and obtained large high-to-low reflection ratios with a very small number of dielectric layers in the capping 1D photonic crystal. We conclude that MXenes represent a viable alternative for TPP-supporting structures, offering many advantages.",
publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "Coatings",
title = "MXenes as Alternative Plasmonic Coatings on 1D Photonic Crystals Platforms for Tamm Plasmon Polaritons",
volume = "13",
number = "1",
pages = "198",
doi = "10.3390/coatings13010198"
}

Obradov, M., Jakšić, Z., Mladenović, I., Bartula, A.,& Jakšić, O.. (2023). MXenes as Alternative Plasmonic Coatings on 1D Photonic Crystals Platforms for Tamm Plasmon Polaritons. in Coatings
Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 13(1), 198.
https://doi.org/10.3390/coatings13010198

Obradov M, Jakšić Z, Mladenović I, Bartula A, Jakšić O. MXenes as Alternative Plasmonic Coatings on 1D Photonic Crystals Platforms for Tamm Plasmon Polaritons. in Coatings. 2023;13(1):198.
doi:10.3390/coatings13010198 .

Obradov, Marko, Jakšić, Zoran, Mladenović, Ivana, Bartula, Anja, Jakšić, Olga, "MXenes as Alternative Plasmonic Coatings on 1D Photonic Crystals Platforms for Tamm Plasmon Polaritons" in Coatings, 13, no. 1 (2023):198,
https://doi.org/10.3390/coatings13010198 . .

TY  - CONF
AU  - Mladenović, Ivana O.
AU  - Lamovec, Jelena S.
AU  - Obradov, Marko
AU  - Rašljić Rafajilović, Milena
AU  - Radojević, Vesna J.
AU  - Vasiljević-Radović, Dana
AU  - Nikolić, Nebojša D.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5218
AB  - In this investigation, nickel coatings were electrodeposited on brass substrate. The effects of 
electrodeposition process parameters such as, current density and deposition time (coatings thickness), on surface morphology and composite hardness values were studied. The 
value of the measured composite hardness by Vickers microindentation technique of the selected “hard film on soft substrate” composite system type depends on the applied indentation loads. For this reason, the microindentation loads are also included in the analysis. According to the experiment plan obtained by Design-Expert software, nickel coating has been produced on the brass cathode using galvanostatic regime (DC) with magnetic stirring of the electrolyte. The nickel 
sulphamate electrolyte with saccharine additive was used for Ni electrodeposition. Then, response surface methodology (RSM) was used to establish an adequate mathematical model. Subsequently, a mathematical model was developed to weight the effects of each input parameters (coating thickness, current density and indentation load) on the output parameter (composite hardness) of electrodeposited nickel coatings on brass substrate. According to the obtained results, the coating thickness and indentation load greatly influenced resulting composite hardness. On the other hand, coating current density primarily influenced microstructure and surface roughness. The topographic modification of the Ni coating surface depending on the post-treatment (mechanical and chemical) after deposition was studied using AFM microscopy.
PB  - Belgrade : ETRAN Society
C3  - Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022
T1  - Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads
SP  - 398
EP  - 403
UR  - https://hdl.handle.net/21.15107/rcub_cer_5218
ER  - 

@conference{
author = "Mladenović, Ivana O. and Lamovec, Jelena S. and Obradov, Marko and Rašljić Rafajilović, Milena and Radojević, Vesna J. and Vasiljević-Radović, Dana and Nikolić, Nebojša D.",
year = "2022",
abstract = "In this investigation, nickel coatings were electrodeposited on brass substrate. The effects of 
electrodeposition process parameters such as, current density and deposition time (coatings thickness), on surface morphology and composite hardness values were studied. The 
value of the measured composite hardness by Vickers microindentation technique of the selected “hard film on soft substrate” composite system type depends on the applied indentation loads. For this reason, the microindentation loads are also included in the analysis. According to the experiment plan obtained by Design-Expert software, nickel coating has been produced on the brass cathode using galvanostatic regime (DC) with magnetic stirring of the electrolyte. The nickel 
sulphamate electrolyte with saccharine additive was used for Ni electrodeposition. Then, response surface methodology (RSM) was used to establish an adequate mathematical model. Subsequently, a mathematical model was developed to weight the effects of each input parameters (coating thickness, current density and indentation load) on the output parameter (composite hardness) of electrodeposited nickel coatings on brass substrate. According to the obtained results, the coating thickness and indentation load greatly influenced resulting composite hardness. On the other hand, coating current density primarily influenced microstructure and surface roughness. The topographic modification of the Ni coating surface depending on the post-treatment (mechanical and chemical) after deposition was studied using AFM microscopy.",
publisher = "Belgrade : ETRAN Society",
journal = "Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022",
title = "Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads",
pages = "398-403",
url = "https://hdl.handle.net/21.15107/rcub_cer_5218"
}

Mladenović, I. O., Lamovec, J. S., Obradov, M., Rašljić Rafajilović, M., Radojević, V. J., Vasiljević-Radović, D.,& Nikolić, N. D.. (2022). Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads. in Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022
Belgrade : ETRAN Society., 398-403.
https://hdl.handle.net/21.15107/rcub_cer_5218

Mladenović IO, Lamovec JS, Obradov M, Rašljić Rafajilović M, Radojević VJ, Vasiljević-Radović D, Nikolić ND. Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads. in Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022. 2022;:398-403.
https://hdl.handle.net/21.15107/rcub_cer_5218 .

Mladenović, Ivana O., Lamovec, Jelena S., Obradov, Marko, Rašljić Rafajilović, Milena, Radojević, Vesna J., Vasiljević-Radović, Dana, Nikolić, Nebojša D., "Optimization of electrodeposition parameters to improve composite hardness of nickel coatings on brass substrate for varying film thicknesses and applied indentation loads" in Proceedings - IX International Conference on Electrical, Electronic and Computing Engineering (IcETRAN 2022) and LXVI Conference on Electronics, Telecommunication, Computing, Automation and Nuclear Engineering (ETRAN 2022), Novi Pazar, Serbia, June 2022 (2022):398-403,
https://hdl.handle.net/21.15107/rcub_cer_5218 .

TY  - JOUR
AU  - Jakšić, Zoran
AU  - Obradov, Marko
AU  - Jakšić, Olga
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5560
AB  - Nanomembranes are the most widespread building block of life, as they encompass cell and organelle walls. Their synthetic counterparts can be described as freestanding or free-floating structures thinner than 100 nm, down to monatomic/monomolecular thickness and with giant lateral aspect ratios. The structural confinement to quasi-2D sheets causes a multitude of unexpected and often counterintuitive properties. This has resulted in synthetic nanomembranes transiting from a mere scientific curiosity to a position where novel applications are emerging at an ever-accelerating pace. Among wide fields where their use has proven itself most fruitful are nano-optics and nanophotonics. However, the authors are unaware of a review covering the nanomembrane use in these important fields. Here, we present an attempt to survey the state of the art of nanomembranes in nanophotonics, including photonic crystals, plasmonics, metasurfaces, and nanoantennas, with an accent on some advancements that appeared within the last few years. Unlimited by the Nature toolbox, we can utilize a practically infinite number of available materials and methods and reach numerous properties not met in biological membranes. Thus, nanomembranes in nano-optics can be described as real metastructures, exceeding the known materials and opening pathways to a wide variety of novel functionalities.
PB  - MDPI AG
T2  - Biomimetics
T1  - Bio-Inspired Nanomembranes as Building Blocks for Nanophotonics, Plasmonics and Metamaterials
VL  - 7
IS  - 4
SP  - 222
DO  - 10.3390/biomimetics7040222
ER  - 

@article{
author = "Jakšić, Zoran and Obradov, Marko and Jakšić, Olga",
year = "2022",
abstract = "Nanomembranes are the most widespread building block of life, as they encompass cell and organelle walls. Their synthetic counterparts can be described as freestanding or free-floating structures thinner than 100 nm, down to monatomic/monomolecular thickness and with giant lateral aspect ratios. The structural confinement to quasi-2D sheets causes a multitude of unexpected and often counterintuitive properties. This has resulted in synthetic nanomembranes transiting from a mere scientific curiosity to a position where novel applications are emerging at an ever-accelerating pace. Among wide fields where their use has proven itself most fruitful are nano-optics and nanophotonics. However, the authors are unaware of a review covering the nanomembrane use in these important fields. Here, we present an attempt to survey the state of the art of nanomembranes in nanophotonics, including photonic crystals, plasmonics, metasurfaces, and nanoantennas, with an accent on some advancements that appeared within the last few years. Unlimited by the Nature toolbox, we can utilize a practically infinite number of available materials and methods and reach numerous properties not met in biological membranes. Thus, nanomembranes in nano-optics can be described as real metastructures, exceeding the known materials and opening pathways to a wide variety of novel functionalities.",
publisher = "MDPI AG",
journal = "Biomimetics",
title = "Bio-Inspired Nanomembranes as Building Blocks for Nanophotonics, Plasmonics and Metamaterials",
volume = "7",
number = "4",
pages = "222",
doi = "10.3390/biomimetics7040222"
}

Jakšić, Z., Obradov, M.,& Jakšić, O.. (2022). Bio-Inspired Nanomembranes as Building Blocks for Nanophotonics, Plasmonics and Metamaterials. in Biomimetics
MDPI AG., 7(4), 222.
https://doi.org/10.3390/biomimetics7040222

Jakšić Z, Obradov M, Jakšić O. Bio-Inspired Nanomembranes as Building Blocks for Nanophotonics, Plasmonics and Metamaterials. in Biomimetics. 2022;7(4):222.
doi:10.3390/biomimetics7040222 .

Jakšić, Zoran, Obradov, Marko, Jakšić, Olga, "Bio-Inspired Nanomembranes as Building Blocks for Nanophotonics, Plasmonics and Metamaterials" in Biomimetics, 7, no. 4 (2022):222,
https://doi.org/10.3390/biomimetics7040222 . .

TY  - JOUR
AU  - Jakšić, Zoran
AU  - Obradov, Marko
AU  - Jakšić, Olga
AU  - Tanasković, Dragan
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5603
AB  - We proposed and investigated a family of multifunctional plasmonic biomimetic structures inspired by natural brochosome powders secreted by leafhoppers (insects from Cicadellidae family): spheres with diameters (600–1000) nm, with dielectric or hollow cores and golden shells perforated by subwavelength holes (30–100) nm in radius. We simulated ab initio their optical properties using the finite element method. We found that even in the simplest case (core-shells with only 6 nanoholes) our approach ensured the design of highly efficient omnidirectional ultra-antireflective diffractive powders. The reflectivity of 600 nm diameter perforated spheres did not exceed 2% in (500–600) nm range. We also discovered that planar arrays of our particles exhibited effective optical metamaterial behavior, including ultralow and negative refractive index at near-infrared wavelengths above 1000 nm. This rich optical behavior enhances the multifunctionality of our particles which can serve as antireflective, superhydrophobic and highly porous structures controllable by design. Potential practical impact includes their use in chemical sensing and biosensing, photodetection (antireflection,) photoelectrochemistry, photocatalysis, medical thermoplasmonics, general microoptoelectromechanical systems (MOEMS), etc. Our approach extends the range of possible designs, geometries and materials of brochosome-inspired microparticles. Thus we arrived at a new toolbox for the design of simple, highly customizable and versatile porous plasmonic particles.
PB  - Springer
T2  - Optical and Quantum Electronics
T1  - A family of perforated submicrometer core–shell plasmonic particles bio-inspired by leafhopper brochosomes
VL  - 54
IS  - 8
SP  - 524
DO  - 10.1007/s11082-022-03767-9
ER  - 

@article{
author = "Jakšić, Zoran and Obradov, Marko and Jakšić, Olga and Tanasković, Dragan",
year = "2022",
abstract = "We proposed and investigated a family of multifunctional plasmonic biomimetic structures inspired by natural brochosome powders secreted by leafhoppers (insects from Cicadellidae family): spheres with diameters (600–1000) nm, with dielectric or hollow cores and golden shells perforated by subwavelength holes (30–100) nm in radius. We simulated ab initio their optical properties using the finite element method. We found that even in the simplest case (core-shells with only 6 nanoholes) our approach ensured the design of highly efficient omnidirectional ultra-antireflective diffractive powders. The reflectivity of 600 nm diameter perforated spheres did not exceed 2% in (500–600) nm range. We also discovered that planar arrays of our particles exhibited effective optical metamaterial behavior, including ultralow and negative refractive index at near-infrared wavelengths above 1000 nm. This rich optical behavior enhances the multifunctionality of our particles which can serve as antireflective, superhydrophobic and highly porous structures controllable by design. Potential practical impact includes their use in chemical sensing and biosensing, photodetection (antireflection,) photoelectrochemistry, photocatalysis, medical thermoplasmonics, general microoptoelectromechanical systems (MOEMS), etc. Our approach extends the range of possible designs, geometries and materials of brochosome-inspired microparticles. Thus we arrived at a new toolbox for the design of simple, highly customizable and versatile porous plasmonic particles.",
publisher = "Springer",
journal = "Optical and Quantum Electronics",
title = "A family of perforated submicrometer core–shell plasmonic particles bio-inspired by leafhopper brochosomes",
volume = "54",
number = "8",
pages = "524",
doi = "10.1007/s11082-022-03767-9"
}

Jakšić, Z., Obradov, M., Jakšić, O.,& Tanasković, D.. (2022). A family of perforated submicrometer core–shell plasmonic particles bio-inspired by leafhopper brochosomes. in Optical and Quantum Electronics
Springer., 54(8), 524.
https://doi.org/10.1007/s11082-022-03767-9

Jakšić Z, Obradov M, Jakšić O, Tanasković D. A family of perforated submicrometer core–shell plasmonic particles bio-inspired by leafhopper brochosomes. in Optical and Quantum Electronics. 2022;54(8):524.
doi:10.1007/s11082-022-03767-9 .

Jakšić, Zoran, Obradov, Marko, Jakšić, Olga, Tanasković, Dragan, "A family of perforated submicrometer core–shell plasmonic particles bio-inspired by leafhopper brochosomes" in Optical and Quantum Electronics, 54, no. 8 (2022):524,
https://doi.org/10.1007/s11082-022-03767-9 . .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Andrić, Stevan
AU  - Vorkapić, Miloš
AU  - Obradov, Marko
AU  - Vasiljević-Radović, Dana
AU  - Radojević, Vesna
AU  - Nikolić, Nebojša D.
PY  - 2021
UR  - https://www.etran.rs/2021/en/proceedings/
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4922
AB  - Influence of an intensity of ultrasonic mixing of electrolyte in a temperature range of 27–37 °C and ultrasonic power intensity in the range of 3.77–18.84 W/cm2 (10–50 %) on a synthesis of fine-grained copper deposits was examined. Copper coatings were electrodeposited on a brass substrate in direct current (DC) regime with an applied current density of 50 mA·cm-2. The laboratory-made copper sulfate electrolyte was used without or with addition of additives. The variation of temperature under sonoelectrodeposition process and variation mixing intensity of electrolyte were ensured by using an ultrasonic probe. The produced Cu coatings were examined by optical microscope (OM) in order to observe the microstructural modification with variation ultrasonic parameters and for measuring imprints of Vickers indenter. The micro hardness properties of composite systems were characterized using Vickers micro indentation test. The composite hardness models Chicot-Lesage and Chen-Gao were used for the determination the coatings hardness and adhesion evaluation. Application of Atomic Force Microscopy (AFM) technique also confirmed the strong influence of ultrasonic mixing conditions of electrolyte onto change of the microstructure of copper deposits and surface roughness of the coatings. The maximum hardness, good adhesion properties and minimum micro surface roughness was obtained for the fine-grained Cu coating produced with amplitude of 50 % ultrasonic mixing of electrolyte without additives and 30 % for electrolyte with additives.
PB  - Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering
C3  - Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020
T1  - Synthesis and characterization of thin copper coatings obtained by sonoelectrodeposition method
SP  - MOI 1.1
UR  - https://hdl.handle.net/21.15107/rcub_cer_4922
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Andrić, Stevan and Vorkapić, Miloš and Obradov, Marko and Vasiljević-Radović, Dana and Radojević, Vesna and Nikolić, Nebojša D.",
year = "2021",
abstract = "Influence of an intensity of ultrasonic mixing of electrolyte in a temperature range of 27–37 °C and ultrasonic power intensity in the range of 3.77–18.84 W/cm2 (10–50 %) on a synthesis of fine-grained copper deposits was examined. Copper coatings were electrodeposited on a brass substrate in direct current (DC) regime with an applied current density of 50 mA·cm-2. The laboratory-made copper sulfate electrolyte was used without or with addition of additives. The variation of temperature under sonoelectrodeposition process and variation mixing intensity of electrolyte were ensured by using an ultrasonic probe. The produced Cu coatings were examined by optical microscope (OM) in order to observe the microstructural modification with variation ultrasonic parameters and for measuring imprints of Vickers indenter. The micro hardness properties of composite systems were characterized using Vickers micro indentation test. The composite hardness models Chicot-Lesage and Chen-Gao were used for the determination the coatings hardness and adhesion evaluation. Application of Atomic Force Microscopy (AFM) technique also confirmed the strong influence of ultrasonic mixing conditions of electrolyte onto change of the microstructure of copper deposits and surface roughness of the coatings. The maximum hardness, good adhesion properties and minimum micro surface roughness was obtained for the fine-grained Cu coating produced with amplitude of 50 % ultrasonic mixing of electrolyte without additives and 30 % for electrolyte with additives.",
publisher = "Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering",
journal = "Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020",
title = "Synthesis and characterization of thin copper coatings obtained by sonoelectrodeposition method",
pages = "MOI 1.1",
url = "https://hdl.handle.net/21.15107/rcub_cer_4922"
}

Mladenović, I., Lamovec, J., Andrić, S., Vorkapić, M., Obradov, M., Vasiljević-Radović, D., Radojević, V.,& Nikolić, N. D.. (2021). Synthesis and characterization of thin copper coatings obtained by sonoelectrodeposition method. in Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020
Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering., MOI 1.1.
https://hdl.handle.net/21.15107/rcub_cer_4922

Mladenović I, Lamovec J, Andrić S, Vorkapić M, Obradov M, Vasiljević-Radović D, Radojević V, Nikolić ND. Synthesis and characterization of thin copper coatings obtained by sonoelectrodeposition method. in Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020. 2021;:MOI 1.1.
https://hdl.handle.net/21.15107/rcub_cer_4922 .

Mladenović, Ivana, Lamovec, Jelena, Andrić, Stevan, Vorkapić, Miloš, Obradov, Marko, Vasiljević-Radović, Dana, Radojević, Vesna, Nikolić, Nebojša D., "Synthesis and characterization of thin copper coatings obtained by sonoelectrodeposition method" in Proceedings - 8th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2021 and 65th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020 (2021):MOI 1.1,
https://hdl.handle.net/21.15107/rcub_cer_4922 .

TY  - CONF
AU  - Obradov, Marko
AU  - Jakšić, Zoran
AU  - Mladenović, Ivana
AU  - Tanasković, Dragan
AU  - Vasiljević-Radović, Dana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4851
AB  - Plasmonic crystals exhibit excellent waveguiding and extreme light localizing properties. However, if additionally perforated, their structure assumes vastly enhanced functionality and becomes the basis for e.g. double negative refractive index metamaterials and superabsorbers. In this work we consider 1D plasmonic crystal consisting of alternating metallic and dielectric layers perforated by an array of conical holes tapering off as they penetrate the multilayer. We utilized the finite element method (Comsol multiphysics®) to calculate the response of our proposed structures - electromagnetic field intensity and frequency dispersion of scattering parameters. Utilizing at the same time a multilayer and perforations with a varying cross section simultaneously broadens the useful spectrum and allows for additional plasmonic modes. In addition to an enhanced absorption associated with the plasmonic modes, the functionality of the structure is further increased by allowing spectral selection of dielectric layers with strong light localization. The proposed structure can be used for a multitude of practical applications. They include (but are not limited to) an alternative approach to superabsorber design, the enhancement of the performance of multianalyte biochemical sensors, photo detectors, solar cells and photocatalysts, as well as optical switching.
PB  - Belgrade : Institute of Electrical and Electronics Engineers Inc.
C3  - Proceedings of the International Conference on Microelectronics, ICM, 32nd IEEE International Conference on Microelectronics, MIEL 2021
T1  - Plasmonic Crystals with Conical Perforations as Multipurpose Optical Elements
SP  - 77
EP  - 79
DO  - 10.1109/MIEL52794.2021.9569116
ER  - 

@conference{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Tanasković, Dragan and Vasiljević-Radović, Dana",
year = "2021",
abstract = "Plasmonic crystals exhibit excellent waveguiding and extreme light localizing properties. However, if additionally perforated, their structure assumes vastly enhanced functionality and becomes the basis for e.g. double negative refractive index metamaterials and superabsorbers. In this work we consider 1D plasmonic crystal consisting of alternating metallic and dielectric layers perforated by an array of conical holes tapering off as they penetrate the multilayer. We utilized the finite element method (Comsol multiphysics®) to calculate the response of our proposed structures - electromagnetic field intensity and frequency dispersion of scattering parameters. Utilizing at the same time a multilayer and perforations with a varying cross section simultaneously broadens the useful spectrum and allows for additional plasmonic modes. In addition to an enhanced absorption associated with the plasmonic modes, the functionality of the structure is further increased by allowing spectral selection of dielectric layers with strong light localization. The proposed structure can be used for a multitude of practical applications. They include (but are not limited to) an alternative approach to superabsorber design, the enhancement of the performance of multianalyte biochemical sensors, photo detectors, solar cells and photocatalysts, as well as optical switching.",
publisher = "Belgrade : Institute of Electrical and Electronics Engineers Inc.",
journal = "Proceedings of the International Conference on Microelectronics, ICM, 32nd IEEE International Conference on Microelectronics, MIEL 2021",
title = "Plasmonic Crystals with Conical Perforations as Multipurpose Optical Elements",
pages = "77-79",
doi = "10.1109/MIEL52794.2021.9569116"
}

Obradov, M., Jakšić, Z., Mladenović, I., Tanasković, D.,& Vasiljević-Radović, D.. (2021). Plasmonic Crystals with Conical Perforations as Multipurpose Optical Elements. in Proceedings of the International Conference on Microelectronics, ICM, 32nd IEEE International Conference on Microelectronics, MIEL 2021
Belgrade : Institute of Electrical and Electronics Engineers Inc.., 77-79.
https://doi.org/10.1109/MIEL52794.2021.9569116

Obradov M, Jakšić Z, Mladenović I, Tanasković D, Vasiljević-Radović D. Plasmonic Crystals with Conical Perforations as Multipurpose Optical Elements. in Proceedings of the International Conference on Microelectronics, ICM, 32nd IEEE International Conference on Microelectronics, MIEL 2021. 2021;:77-79.
doi:10.1109/MIEL52794.2021.9569116 .

Obradov, Marko, Jakšić, Zoran, Mladenović, Ivana, Tanasković, Dragan, Vasiljević-Radović, Dana, "Plasmonic Crystals with Conical Perforations as Multipurpose Optical Elements" in Proceedings of the International Conference on Microelectronics, ICM, 32nd IEEE International Conference on Microelectronics, MIEL 2021 (2021):77-79,
https://doi.org/10.1109/MIEL52794.2021.9569116 . .

TY  - JOUR
AU  - Jakšić, Zoran
AU  - Obradov, Marko
AU  - Jakšić, Olga
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4914
AB  - Recently, biological nanostructures became an important source of inspiration for plasmonics, with many described implementations and proposed applications. Among them are brochosome-inspired plasmonic microstructures—roughly spherical core-shell particles with submicrometer diameters and with indented surfaces. Our intention was to start from the nanoplasmonic point of view and to systematically classify possible alternative forms of brochosome-inspired metal-containing particles producible by the state-of-the-art nanofabrication. A wealth of novel structures arises from this systematization of bioinspired metal-containing nanocomposites. Besides various surface nanoapertures, we consider structures closely related to them in electromagnetic sense like surface nano-protrusions, shell reliefs obtained by nano-sculpting, and various combinations of these. This approach helped us build a new design toolbox for brochosome-inspired structures. Additionally, we used the finite elements method to simulate the optical properties of simple brochosome-inspired structures. We encountered a plethora of advantageous optical traits, including enhanced absorption, antireflective properties, and metamaterial behavior (effective refractive index close to zero or negative). We conclude that the presented approach offers a wealth of traits useful for practical applications. The described research represents our attempt to outline a possible roadmap for further development of bioinspired nanoplasmonic particles and to offer a source of ideas and directions for future research.
PB  - MDPI
T2  - Biomimetics
T1  - Brochosome-Inspired Metal-Containing Particles as Biomimetic Building Blocks for Nanoplasmonics: Conceptual Generalizations
VL  - 6
IS  - 4
SP  - 69
DO  - 10.3390/biomimetics6040069
ER  - 

@article{
author = "Jakšić, Zoran and Obradov, Marko and Jakšić, Olga",
year = "2021",
abstract = "Recently, biological nanostructures became an important source of inspiration for plasmonics, with many described implementations and proposed applications. Among them are brochosome-inspired plasmonic microstructures—roughly spherical core-shell particles with submicrometer diameters and with indented surfaces. Our intention was to start from the nanoplasmonic point of view and to systematically classify possible alternative forms of brochosome-inspired metal-containing particles producible by the state-of-the-art nanofabrication. A wealth of novel structures arises from this systematization of bioinspired metal-containing nanocomposites. Besides various surface nanoapertures, we consider structures closely related to them in electromagnetic sense like surface nano-protrusions, shell reliefs obtained by nano-sculpting, and various combinations of these. This approach helped us build a new design toolbox for brochosome-inspired structures. Additionally, we used the finite elements method to simulate the optical properties of simple brochosome-inspired structures. We encountered a plethora of advantageous optical traits, including enhanced absorption, antireflective properties, and metamaterial behavior (effective refractive index close to zero or negative). We conclude that the presented approach offers a wealth of traits useful for practical applications. The described research represents our attempt to outline a possible roadmap for further development of bioinspired nanoplasmonic particles and to offer a source of ideas and directions for future research.",
publisher = "MDPI",
journal = "Biomimetics",
title = "Brochosome-Inspired Metal-Containing Particles as Biomimetic Building Blocks for Nanoplasmonics: Conceptual Generalizations",
volume = "6",
number = "4",
pages = "69",
doi = "10.3390/biomimetics6040069"
}

Jakšić, Z., Obradov, M.,& Jakšić, O.. (2021). Brochosome-Inspired Metal-Containing Particles as Biomimetic Building Blocks for Nanoplasmonics: Conceptual Generalizations. in Biomimetics
MDPI., 6(4), 69.
https://doi.org/10.3390/biomimetics6040069

Jakšić Z, Obradov M, Jakšić O. Brochosome-Inspired Metal-Containing Particles as Biomimetic Building Blocks for Nanoplasmonics: Conceptual Generalizations. in Biomimetics. 2021;6(4):69.
doi:10.3390/biomimetics6040069 .

Jakšić, Zoran, Obradov, Marko, Jakšić, Olga, "Brochosome-Inspired Metal-Containing Particles as Biomimetic Building Blocks for Nanoplasmonics: Conceptual Generalizations" in Biomimetics, 6, no. 4 (2021):69,
https://doi.org/10.3390/biomimetics6040069 . .

TY  - GEN
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Vorkapić, Miloš
AU  - Frantlović, Miloš
AU  - Poljak, Predrag
AU  - Obradov, Marko
AU  - Vencl, Aleksandar
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5727
AB  - У индустријским условима велики проблем представља лоша адхезија танких филмова и 
заштитних превлака на запреминским материјалима, па је потреба за карактеризацијом 
и испитивањем адхезије танких филмова на флексибилним подлогама веома значајна. Према потребама наручиоца, развијен је лабораторијски прототип уређаја за испитивање адхезије. Уређај је аутоматизован и пружа могућност поређења адхезивних својстава различитих композитних система (филм/подлога).
T1  - Laboratorijski prototip automatizovanog uređaja za ispitivanje adhezije testom na savijanje tankih metalnih filmova na fleksibilnim folijama
UR  - https://hdl.handle.net/21.15107/rcub_cer_5727
ER  - 

@misc{
author = "Mladenović, Ivana and Lamovec, Jelena and Vorkapić, Miloš and Frantlović, Miloš and Poljak, Predrag and Obradov, Marko and Vencl, Aleksandar",
year = "2021",
abstract = "У индустријским условима велики проблем представља лоша адхезија танких филмова и 
заштитних превлака на запреминским материјалима, па је потреба за карактеризацијом 
и испитивањем адхезије танких филмова на флексибилним подлогама веома значајна. Према потребама наручиоца, развијен је лабораторијски прототип уређаја за испитивање адхезије. Уређај је аутоматизован и пружа могућност поређења адхезивних својстава различитих композитних система (филм/подлога).",
title = "Laboratorijski prototip automatizovanog uređaja za ispitivanje adhezije testom na savijanje tankih metalnih filmova na fleksibilnim folijama",
url = "https://hdl.handle.net/21.15107/rcub_cer_5727"
}

Mladenović, I., Lamovec, J., Vorkapić, M., Frantlović, M., Poljak, P., Obradov, M.,& Vencl, A.. (2021). Laboratorijski prototip automatizovanog uređaja za ispitivanje adhezije testom na savijanje tankih metalnih filmova na fleksibilnim folijama. .
https://hdl.handle.net/21.15107/rcub_cer_5727

Mladenović I, Lamovec J, Vorkapić M, Frantlović M, Poljak P, Obradov M, Vencl A. Laboratorijski prototip automatizovanog uređaja za ispitivanje adhezije testom na savijanje tankih metalnih filmova na fleksibilnim folijama. 2021;.
https://hdl.handle.net/21.15107/rcub_cer_5727 .

Mladenović, Ivana, Lamovec, Jelena, Vorkapić, Miloš, Frantlović, Miloš, Poljak, Predrag, Obradov, Marko, Vencl, Aleksandar, "Laboratorijski prototip automatizovanog uređaja za ispitivanje adhezije testom na savijanje tankih metalnih filmova na fleksibilnim folijama" (2021),
https://hdl.handle.net/21.15107/rcub_cer_5727 .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Nikolić, Nebojša D.
AU  - Andrić, Stevan
AU  - Obradov, Marko
AU  - Radojević, Vesna
AU  - Vasiljević-Radović, Dana
PY  - 2020
UR  - https://www.etran.rs/2020/ZBORNIK_RADOVA/SADRZAJ_SEKCIJE_RADOVI.html
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3726
AB  - Copper coatings are produced on silicon wafer by electrodeposition (ED) in pulsating current (PC) regime. Electrodeposition was performed at various current density amplitudes in the range of 80−140 mA cm-2, frequency in the range of 30−100 Hz and coating thickness in the range of 10−60 μm. The resulting composite systems consist of monolayered copper films electrodeposited from sulfate bath on Si wafers with sputtered layers of Cr/Au. Roughness measurements were performed to evaluate properties of the copper coating surface. The coating roughness (R) was measured using Atomic Force Microscope in contact mode. The software Gwyddion was used for determination an average roughness parameter (Ra). After that (Artificial Neural Network-ANN) model was used to study the relationship between the parameters of electrodeposition process and roughness of copper coatings. The influence of experimental values: amplitude current density, frequency and thickness of coating on the surface roughness will be highlighted. Response surface methodology (RSM) was utilized to improve the correction between Ra and input parameters. Finally, the results of the average roughness (experimental and predicted) were used to estimate the new value of (Ra) of copper for each variation of the input parameters and compared capability of ANN and regression analysis for surface roughness generated under different electrochemical conditions. The coefficient of determination was found 92% for ANN and 93% for regression analysis.
PB  - Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering
C3  - Proceedings - 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 and 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020
T1  - Response Surface Methodology and Artificial Neural Network-Based Models for Predicting Roughness of Cu coatings
UR  - https://hdl.handle.net/21.15107/rcub_cer_3726
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Nikolić, Nebojša D. and Andrić, Stevan and Obradov, Marko and Radojević, Vesna and Vasiljević-Radović, Dana",
year = "2020",
abstract = "Copper coatings are produced on silicon wafer by electrodeposition (ED) in pulsating current (PC) regime. Electrodeposition was performed at various current density amplitudes in the range of 80−140 mA cm-2, frequency in the range of 30−100 Hz and coating thickness in the range of 10−60 μm. The resulting composite systems consist of monolayered copper films electrodeposited from sulfate bath on Si wafers with sputtered layers of Cr/Au. Roughness measurements were performed to evaluate properties of the copper coating surface. The coating roughness (R) was measured using Atomic Force Microscope in contact mode. The software Gwyddion was used for determination an average roughness parameter (Ra). After that (Artificial Neural Network-ANN) model was used to study the relationship between the parameters of electrodeposition process and roughness of copper coatings. The influence of experimental values: amplitude current density, frequency and thickness of coating on the surface roughness will be highlighted. Response surface methodology (RSM) was utilized to improve the correction between Ra and input parameters. Finally, the results of the average roughness (experimental and predicted) were used to estimate the new value of (Ra) of copper for each variation of the input parameters and compared capability of ANN and regression analysis for surface roughness generated under different electrochemical conditions. The coefficient of determination was found 92% for ANN and 93% for regression analysis.",
publisher = "Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering",
journal = "Proceedings - 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 and 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020",
title = "Response Surface Methodology and Artificial Neural Network-Based Models for Predicting Roughness of Cu coatings",
url = "https://hdl.handle.net/21.15107/rcub_cer_3726"
}

Mladenović, I., Lamovec, J., Nikolić, N. D., Andrić, S., Obradov, M., Radojević, V.,& Vasiljević-Radović, D.. (2020). Response Surface Methodology and Artificial Neural Network-Based Models for Predicting Roughness of Cu coatings. in Proceedings - 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 and 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020
Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear angineering..
https://hdl.handle.net/21.15107/rcub_cer_3726

Mladenović I, Lamovec J, Nikolić ND, Andrić S, Obradov M, Radojević V, Vasiljević-Radović D. Response Surface Methodology and Artificial Neural Network-Based Models for Predicting Roughness of Cu coatings. in Proceedings - 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 and 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020. 2020;.
https://hdl.handle.net/21.15107/rcub_cer_3726 .

Mladenović, Ivana, Lamovec, Jelena, Nikolić, Nebojša D., Andrić, Stevan, Obradov, Marko, Radojević, Vesna, Vasiljević-Radović, Dana, "Response Surface Methodology and Artificial Neural Network-Based Models for Predicting Roughness of Cu coatings" in Proceedings - 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020 and 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering ETRAN 2020 (2020),
https://hdl.handle.net/21.15107/rcub_cer_3726 .

TY  - JOUR
AU  - Cvetanović Zobenica, Katarina
AU  - Obradov, Marko
AU  - Rašljić, Milena
AU  - Mladenović, Ivana
AU  - Jakšić, Zoran
AU  - Vasiljević-Radović, Dana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3476
AB  - Plasmonic materials, stochastically roughened, can provide localized field enhancement under optical irradiation (light trapping). The use of plasmonic materials in semiconductor photocatalists also leads to drastic enhancement of their photoreactivity. Plasmonic enhancement can be seen in an extension of the useful range of solar spectrum, and in a high increase of the amount of collected light energy. The structures we propose here not only can be utilized for a vast majority of photocatalytic systems (including those microreactor-based,) but also for the enhancement of light harvesting devices of any kind, including all types of solar cells, as well as for ultrasensitive chemical sensing. Here we consider a structure with a roughened metallic film on the bottom and a roughened transparent conductive oxide (TCO) or silica glass layer on the top, separated by a thin dielectric layer. We fabricated experimental structures and simulated their electromagnetic properties by the finite element method. Thus we verified that the combined influence of two rough films significantly improves light trapping within the dielectric layer between them, while plasmonic effects lead to concentration of electromagnetic field into subwavelength volumes. Consequently, the radiation intensities are vastly increased within the dielectric layer, even for several orders of magnitude, compared to the incident beam. Another interesting property observed is that while both TCO and silica glass structures act as diffractive light traps well into the UV range, the TCO structure simultaneously acts as a plasmonic superabsorber for IR light, turning the increase of TCO opaqueness with wavelength into a benefit since it significantly expands the useful spectral range. Tuning of dopant levels in TCO or using alternative plasmonic materials, together with varying coarseness of the films can further be used to tailor the electromagnetic response.
PB  - Springer
T2  - Optical and Quantum Electronics
T1  - Broadband enhancement of devices and microsystems for light harvesting and photocatalysis
VL  - 52
IS  - 3
SP  - 140
DO  - 10.1007/s11082-020-2261-6
ER  - 

@article{
author = "Cvetanović Zobenica, Katarina and Obradov, Marko and Rašljić, Milena and Mladenović, Ivana and Jakšić, Zoran and Vasiljević-Radović, Dana",
year = "2020",
abstract = "Plasmonic materials, stochastically roughened, can provide localized field enhancement under optical irradiation (light trapping). The use of plasmonic materials in semiconductor photocatalists also leads to drastic enhancement of their photoreactivity. Plasmonic enhancement can be seen in an extension of the useful range of solar spectrum, and in a high increase of the amount of collected light energy. The structures we propose here not only can be utilized for a vast majority of photocatalytic systems (including those microreactor-based,) but also for the enhancement of light harvesting devices of any kind, including all types of solar cells, as well as for ultrasensitive chemical sensing. Here we consider a structure with a roughened metallic film on the bottom and a roughened transparent conductive oxide (TCO) or silica glass layer on the top, separated by a thin dielectric layer. We fabricated experimental structures and simulated their electromagnetic properties by the finite element method. Thus we verified that the combined influence of two rough films significantly improves light trapping within the dielectric layer between them, while plasmonic effects lead to concentration of electromagnetic field into subwavelength volumes. Consequently, the radiation intensities are vastly increased within the dielectric layer, even for several orders of magnitude, compared to the incident beam. Another interesting property observed is that while both TCO and silica glass structures act as diffractive light traps well into the UV range, the TCO structure simultaneously acts as a plasmonic superabsorber for IR light, turning the increase of TCO opaqueness with wavelength into a benefit since it significantly expands the useful spectral range. Tuning of dopant levels in TCO or using alternative plasmonic materials, together with varying coarseness of the films can further be used to tailor the electromagnetic response.",
publisher = "Springer",
journal = "Optical and Quantum Electronics",
title = "Broadband enhancement of devices and microsystems for light harvesting and photocatalysis",
volume = "52",
number = "3",
pages = "140",
doi = "10.1007/s11082-020-2261-6"
}

Cvetanović Zobenica, K., Obradov, M., Rašljić, M., Mladenović, I., Jakšić, Z.,& Vasiljević-Radović, D.. (2020). Broadband enhancement of devices and microsystems for light harvesting and photocatalysis. in Optical and Quantum Electronics
Springer., 52(3), 140.
https://doi.org/10.1007/s11082-020-2261-6

Cvetanović Zobenica K, Obradov M, Rašljić M, Mladenović I, Jakšić Z, Vasiljević-Radović D. Broadband enhancement of devices and microsystems for light harvesting and photocatalysis. in Optical and Quantum Electronics. 2020;52(3):140.
doi:10.1007/s11082-020-2261-6 .

Cvetanović Zobenica, Katarina, Obradov, Marko, Rašljić, Milena, Mladenović, Ivana, Jakšić, Zoran, Vasiljević-Radović, Dana, "Broadband enhancement of devices and microsystems for light harvesting and photocatalysis" in Optical and Quantum Electronics, 52, no. 3 (2020):140,
https://doi.org/10.1007/s11082-020-2261-6 . .

TY  - JOUR
AU  - Jakšić, Zoran
AU  - Obradov, Marko
AU  - Tanasković, Dragan
AU  - Jakšić, Olga
AU  - Vasiljević-Radović, Dana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3394
AB  - In this contribution we propose, design and numerically analyze a plasmonic metamaterial for enhanced optical absorption, based on 100 nm thick titanium carbide (Ti3C2Tx) MXene sheets. The analyzed metamaterial is built as a sandwich with a solid MXene bottom (ground) layer, a lossless dielectric middle layer and an MXene mesh top layer. The unit cell of the periodic top mesh consists of two crossed ultrathin MXene strips, each of them spreading its width in step-like increments towards the middle of the unit cell. This ensures position-variable width of the top surface apertures, resulting in a widening of the bandwidth of spectral dispersion of the scattering parameters of the obtained metamaterial. We utilize the finite element method to simulate the scattering parameters of the MXene-based metamaterial. We apply Drude–Lorentz model to derive our analytical expression for complex permittivity of Ti3C2Tx MXene based on experimental measurements. The described approach is general, since various alternative plasmonic materials can be utilized, including different MXenes, but other materials as well, such as graphene, metals and metal alloys, semiconductors, etc. The approach is applicable to various other nanoplasmonic structures. In this manner the available toolbox for plasmonics is extended and a new degree of design freedom ensured.
PB  - Springer
T2  - Optical and Quantum Electronics
T1  - Electromagnetic simulation of MXene-based plasmonic metamaterials with enhanced optical absorption
VL  - 52
IS  - 2
SP  - 83
DO  - 10.1007/s11082-020-2227-8
ER  - 

@article{
author = "Jakšić, Zoran and Obradov, Marko and Tanasković, Dragan and Jakšić, Olga and Vasiljević-Radović, Dana",
year = "2020",
abstract = "In this contribution we propose, design and numerically analyze a plasmonic metamaterial for enhanced optical absorption, based on 100 nm thick titanium carbide (Ti3C2Tx) MXene sheets. The analyzed metamaterial is built as a sandwich with a solid MXene bottom (ground) layer, a lossless dielectric middle layer and an MXene mesh top layer. The unit cell of the periodic top mesh consists of two crossed ultrathin MXene strips, each of them spreading its width in step-like increments towards the middle of the unit cell. This ensures position-variable width of the top surface apertures, resulting in a widening of the bandwidth of spectral dispersion of the scattering parameters of the obtained metamaterial. We utilize the finite element method to simulate the scattering parameters of the MXene-based metamaterial. We apply Drude–Lorentz model to derive our analytical expression for complex permittivity of Ti3C2Tx MXene based on experimental measurements. The described approach is general, since various alternative plasmonic materials can be utilized, including different MXenes, but other materials as well, such as graphene, metals and metal alloys, semiconductors, etc. The approach is applicable to various other nanoplasmonic structures. In this manner the available toolbox for plasmonics is extended and a new degree of design freedom ensured.",
publisher = "Springer",
journal = "Optical and Quantum Electronics",
title = "Electromagnetic simulation of MXene-based plasmonic metamaterials with enhanced optical absorption",
volume = "52",
number = "2",
pages = "83",
doi = "10.1007/s11082-020-2227-8"
}

Jakšić, Z., Obradov, M., Tanasković, D., Jakšić, O.,& Vasiljević-Radović, D.. (2020). Electromagnetic simulation of MXene-based plasmonic metamaterials with enhanced optical absorption. in Optical and Quantum Electronics
Springer., 52(2), 83.
https://doi.org/10.1007/s11082-020-2227-8

Jakšić Z, Obradov M, Tanasković D, Jakšić O, Vasiljević-Radović D. Electromagnetic simulation of MXene-based plasmonic metamaterials with enhanced optical absorption. in Optical and Quantum Electronics. 2020;52(2):83.
doi:10.1007/s11082-020-2227-8 .

Jakšić, Zoran, Obradov, Marko, Tanasković, Dragan, Jakšić, Olga, Vasiljević-Radović, Dana, "Electromagnetic simulation of MXene-based plasmonic metamaterials with enhanced optical absorption" in Optical and Quantum Electronics, 52, no. 2 (2020):83,
https://doi.org/10.1007/s11082-020-2227-8 . .

TY  - GEN
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Nikolić, Nebojša D.
AU  - Obradov, Marko
AU  - Rašljić, Milena
AU  - Cvetanović-Zobenica, Katarina
AU  - Radojević, Vesna
AU  - Vasiljević-Radović, Dana
PY  - 2019
UR  - https://enauka.gov.rs/handle/123456789/610016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5726
AB  - Ovo tehničko rešenje predstavlja razvoj tehnološkog procesa izrade tankih filmova i prevlaka
bakra na silicijumu kao podlozi, metodom elektrohemijskog taloženja u pulsnom režimu. Tako
formirana prevlaka bakra na supstratu predstavlja kompozitni materijal koji se koristi u mikro i nano
sistemskim tehnologijama. Metalne prevlake predstavljaju važne gradivne elemente optoelektronskih i
mikroelektronskih spojeva koji se koriste za realizaciju složenijih mikroelektromehaničkih sistemskih
komponenti (MEMS-komponenti).
Zahtevi MEMS-a po pitanju kvaliteta metalnih slojeva i tankih filmova su sve rigorozniji
naročito u pogledu mikrostrukture i mehaničkih svojstava. Potreba za superiornijim karakteristikama
prevlaka bakra koja se koristi u MEMS-u ogleda se u poboljšanju mehaničkih i strukturnih svojstava.
Realizacija nanošenja prevlake bakra na silicijumskoj pločici sa podslojem Cr/Au uradjena je
metodom elektrohemijskog taloženja bakra iz kiselog sulfatnog elektrolita, bez dodatka aditiva, u
režimu periodično-promenljivih struja.
U cilju dobijanja kompaktne uniformne prevlake Cu sa sitnozrnom strukturom, korišćen je
režim pulsirajuće struje i sledeći parametri su bili varirani: dužina trajanja pauze (tp), amplitudna
gustina struje (jA) i vreme taloženja, odnosno debljina prevlake ().
Izvršena je strukturna, morfološka i mehanička karakterizacija kompozitnog materijala
prevlaka-podloga. Uočeno je da se primenom pulsnog režima dobijaju prevlake bakra zadovoljavajućih
mikromehaničkih, adhezionih i mikrostrukturnih karakteristika i kao takve se mogu koristiti kao
gradivni elementi elektronskih komponenti.
PB  - University of Belgrade - Institute of Chemistry, Technology and Metallurgy
T1  - Postupak izrade uniformnih i kompaktnih prevlaka bakra - na silicijumu režimom pulsirajuće struje
UR  - https://hdl.handle.net/21.15107/rcub_cer_5726
ER  - 

@misc{
author = "Mladenović, Ivana and Lamovec, Jelena and Nikolić, Nebojša D. and Obradov, Marko and Rašljić, Milena and Cvetanović-Zobenica, Katarina and Radojević, Vesna and Vasiljević-Radović, Dana",
year = "2019",
abstract = "Ovo tehničko rešenje predstavlja razvoj tehnološkog procesa izrade tankih filmova i prevlaka
bakra na silicijumu kao podlozi, metodom elektrohemijskog taloženja u pulsnom režimu. Tako
formirana prevlaka bakra na supstratu predstavlja kompozitni materijal koji se koristi u mikro i nano
sistemskim tehnologijama. Metalne prevlake predstavljaju važne gradivne elemente optoelektronskih i
mikroelektronskih spojeva koji se koriste za realizaciju složenijih mikroelektromehaničkih sistemskih
komponenti (MEMS-komponenti).
Zahtevi MEMS-a po pitanju kvaliteta metalnih slojeva i tankih filmova su sve rigorozniji
naročito u pogledu mikrostrukture i mehaničkih svojstava. Potreba za superiornijim karakteristikama
prevlaka bakra koja se koristi u MEMS-u ogleda se u poboljšanju mehaničkih i strukturnih svojstava.
Realizacija nanošenja prevlake bakra na silicijumskoj pločici sa podslojem Cr/Au uradjena je
metodom elektrohemijskog taloženja bakra iz kiselog sulfatnog elektrolita, bez dodatka aditiva, u
režimu periodično-promenljivih struja.
U cilju dobijanja kompaktne uniformne prevlake Cu sa sitnozrnom strukturom, korišćen je
režim pulsirajuće struje i sledeći parametri su bili varirani: dužina trajanja pauze (tp), amplitudna
gustina struje (jA) i vreme taloženja, odnosno debljina prevlake ().
Izvršena je strukturna, morfološka i mehanička karakterizacija kompozitnog materijala
prevlaka-podloga. Uočeno je da se primenom pulsnog režima dobijaju prevlake bakra zadovoljavajućih
mikromehaničkih, adhezionih i mikrostrukturnih karakteristika i kao takve se mogu koristiti kao
gradivni elementi elektronskih komponenti.",
publisher = "University of Belgrade - Institute of Chemistry, Technology and Metallurgy",
title = "Postupak izrade uniformnih i kompaktnih prevlaka bakra - na silicijumu režimom pulsirajuće struje",
url = "https://hdl.handle.net/21.15107/rcub_cer_5726"
}

Mladenović, I., Lamovec, J., Nikolić, N. D., Obradov, M., Rašljić, M., Cvetanović-Zobenica, K., Radojević, V.,& Vasiljević-Radović, D.. (2019). Postupak izrade uniformnih i kompaktnih prevlaka bakra - na silicijumu režimom pulsirajuće struje. 
University of Belgrade - Institute of Chemistry, Technology and Metallurgy..
https://hdl.handle.net/21.15107/rcub_cer_5726

Mladenović I, Lamovec J, Nikolić ND, Obradov M, Rašljić M, Cvetanović-Zobenica K, Radojević V, Vasiljević-Radović D. Postupak izrade uniformnih i kompaktnih prevlaka bakra - na silicijumu režimom pulsirajuće struje. 2019;.
https://hdl.handle.net/21.15107/rcub_cer_5726 .

Mladenović, Ivana, Lamovec, Jelena, Nikolić, Nebojša D., Obradov, Marko, Rašljić, Milena, Cvetanović-Zobenica, Katarina, Radojević, Vesna, Vasiljević-Radović, Dana, "Postupak izrade uniformnih i kompaktnih prevlaka bakra - na silicijumu režimom pulsirajuće struje" (2019),
https://hdl.handle.net/21.15107/rcub_cer_5726 .

TY  - CONF
AU  - Obradov, Marko
AU  - Jakšić, Zoran
AU  - Mladenović, Ivana
AU  - Tanasković, Dragan
AU  - Vasiljević-Radović, Dana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5712
AB  - Nanomembranes represent a versatile novel
building block in micro- and nanoelectromechanical systems,
inspired by biological cell membranes. If built as quasi-2D
multilayer metal-dielectric nanocomposites, they represent a
natural choice for the use in plasmonics and optical
metamaterials, ensuring a new degree of design freedom and
thus a number of new applications.
In this contribution we consider surface sculpting of two types
of three-layer nanomembranes – metal-insulator-metal (MIM)
and insulator-metal-insulator (IMI) structures. The geometry we
analyze represents troughs with ellipsoidal profiles sculpted in
the multilayer nanomembranes, simultaneously acting as
plasmonic waveguides and ensuring tailoring of frequency
dispersion of the plasmonic nanomembranes.
We determine frequency dispersions of the scattering
parameters for the simulated nanomembranes, as well as the
spatial ditribution of the optical near fields in and around them,
both evanescent (plasmon-polariton based) and propagating. To
this purpose we utilize finite element method simulations.
 The obtained results show that our IMI structures exhibit a
behavior similar to that of the EOT arrays, resulting in optical
transparency of the structure for resonant plasmonic modes. On
the other hand, MIM structures offer an excellent confinement of
electromagnetic radiation within the dielectric layer. We
conclude that both MIM and IMI channels allow for additional
degrees of freedom in customization the nanomembrane
evanescent fields, making a way to numerous potential
applications.
PB  - Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering
C3  - Proceedings - 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, June 03 – 06, 2019, Silver Lake, Serbia
T1  - Reversed ellipsoidal troughs sculpted in plasmonic multilayer nanomembranes
SP  - 590
EP  - 595
UR  - https://hdl.handle.net/21.15107/rcub_cer_5712
ER  - 

@conference{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Tanasković, Dragan and Vasiljević-Radović, Dana",
year = "2019",
abstract = "Nanomembranes represent a versatile novel
building block in micro- and nanoelectromechanical systems,
inspired by biological cell membranes. If built as quasi-2D
multilayer metal-dielectric nanocomposites, they represent a
natural choice for the use in plasmonics and optical
metamaterials, ensuring a new degree of design freedom and
thus a number of new applications.
In this contribution we consider surface sculpting of two types
of three-layer nanomembranes – metal-insulator-metal (MIM)
and insulator-metal-insulator (IMI) structures. The geometry we
analyze represents troughs with ellipsoidal profiles sculpted in
the multilayer nanomembranes, simultaneously acting as
plasmonic waveguides and ensuring tailoring of frequency
dispersion of the plasmonic nanomembranes.
We determine frequency dispersions of the scattering
parameters for the simulated nanomembranes, as well as the
spatial ditribution of the optical near fields in and around them,
both evanescent (plasmon-polariton based) and propagating. To
this purpose we utilize finite element method simulations.
 The obtained results show that our IMI structures exhibit a
behavior similar to that of the EOT arrays, resulting in optical
transparency of the structure for resonant plasmonic modes. On
the other hand, MIM structures offer an excellent confinement of
electromagnetic radiation within the dielectric layer. We
conclude that both MIM and IMI channels allow for additional
degrees of freedom in customization the nanomembrane
evanescent fields, making a way to numerous potential
applications.",
publisher = "Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering",
journal = "Proceedings - 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, June 03 – 06, 2019, Silver Lake, Serbia",
title = "Reversed ellipsoidal troughs sculpted in plasmonic multilayer nanomembranes",
pages = "590-595",
url = "https://hdl.handle.net/21.15107/rcub_cer_5712"
}

Obradov, M., Jakšić, Z., Mladenović, I., Tanasković, D.,& Vasiljević-Radović, D.. (2019). Reversed ellipsoidal troughs sculpted in plasmonic multilayer nanomembranes. in Proceedings - 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, June 03 – 06, 2019, Silver Lake, Serbia
Society for Electronics, Telecommunications, Computers, Automatic Control and Nuclear Engineering., 590-595.
https://hdl.handle.net/21.15107/rcub_cer_5712

Obradov M, Jakšić Z, Mladenović I, Tanasković D, Vasiljević-Radović D. Reversed ellipsoidal troughs sculpted in plasmonic multilayer nanomembranes. in Proceedings - 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, June 03 – 06, 2019, Silver Lake, Serbia. 2019;:590-595.
https://hdl.handle.net/21.15107/rcub_cer_5712 .

Obradov, Marko, Jakšić, Zoran, Mladenović, Ivana, Tanasković, Dragan, Vasiljević-Radović, Dana, "Reversed ellipsoidal troughs sculpted in plasmonic multilayer nanomembranes" in Proceedings - 6th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2019, June 03 – 06, 2019, Silver Lake, Serbia (2019):590-595,
https://hdl.handle.net/21.15107/rcub_cer_5712 .

TY  - CONF
AU  - Cvetanović-Zobenica, Katarina
AU  - Rašljić, Milena
AU  - Obradov, Marko
AU  - Mladenović, Ivana
AU  - Jakšić, Zoran
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5728
AB  - We considered the structure with a roughened metallic film on the bottom and a roughened 
TCO glass layer on the top, separated by a thin dielectric layer. We fabricated experimental 
structures and simulated them by the finite element method. Thus, we verified that the combined 
influence of two rough films significantly improves light trapping within the dielectric layer 
between them while plasmonic effects lead to concentration of electromagnetic field into 
volumes much smaller than a single wavelength. Consequently, the radiation intensities are 
proportionally increased, even for several orders of magnitude, compared to the incident beam. 
Another interesting property observed is that the structure continues to act as a diffractive light 
trap well into the UV region and simultaneously as a plasmonic superabsorber for IR light, 
turning the increase of TCO opaqueness with wavelength into a benefit since it significantly 
expands the useful spectral range. Tuning of dopant levels in TCO or using different metals or 
alloys together with varying coarseness of the films can further be used to tailor the 
electromagnetic response.
PB  - Serbian Academy of Sciences and Arts
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - Book of abstracts - The Seventh International School and Conference on Photonics - PHOTONICA2019, August 26 - August 30, 2019, Belgrade
T1  - Broadband enhancement of light harvesting and photocatalytic devices
SP  - 167
EP  - 167
UR  - https://hdl.handle.net/21.15107/rcub_cer_5728
ER  - 

@conference{
author = "Cvetanović-Zobenica, Katarina and Rašljić, Milena and Obradov, Marko and Mladenović, Ivana and Jakšić, Zoran",
year = "2019",
abstract = "We considered the structure with a roughened metallic film on the bottom and a roughened 
TCO glass layer on the top, separated by a thin dielectric layer. We fabricated experimental 
structures and simulated them by the finite element method. Thus, we verified that the combined 
influence of two rough films significantly improves light trapping within the dielectric layer 
between them while plasmonic effects lead to concentration of electromagnetic field into 
volumes much smaller than a single wavelength. Consequently, the radiation intensities are 
proportionally increased, even for several orders of magnitude, compared to the incident beam. 
Another interesting property observed is that the structure continues to act as a diffractive light 
trap well into the UV region and simultaneously as a plasmonic superabsorber for IR light, 
turning the increase of TCO opaqueness with wavelength into a benefit since it significantly 
expands the useful spectral range. Tuning of dopant levels in TCO or using different metals or 
alloys together with varying coarseness of the films can further be used to tailor the 
electromagnetic response.",
publisher = "Serbian Academy of Sciences and Arts, Belgrade : Vinča Institute of Nuclear Sciences",
journal = "Book of abstracts - The Seventh International School and Conference on Photonics - PHOTONICA2019, August 26 - August 30, 2019, Belgrade",
title = "Broadband enhancement of light harvesting and photocatalytic devices",
pages = "167-167",
url = "https://hdl.handle.net/21.15107/rcub_cer_5728"
}

Cvetanović-Zobenica, K., Rašljić, M., Obradov, M., Mladenović, I.,& Jakšić, Z.. (2019). Broadband enhancement of light harvesting and photocatalytic devices. in Book of abstracts - The Seventh International School and Conference on Photonics - PHOTONICA2019, August 26 - August 30, 2019, Belgrade
Serbian Academy of Sciences and Arts., 167-167.
https://hdl.handle.net/21.15107/rcub_cer_5728

Cvetanović-Zobenica K, Rašljić M, Obradov M, Mladenović I, Jakšić Z. Broadband enhancement of light harvesting and photocatalytic devices. in Book of abstracts - The Seventh International School and Conference on Photonics - PHOTONICA2019, August 26 - August 30, 2019, Belgrade. 2019;:167-167.
https://hdl.handle.net/21.15107/rcub_cer_5728 .

Cvetanović-Zobenica, Katarina, Rašljić, Milena, Obradov, Marko, Mladenović, Ivana, Jakšić, Zoran, "Broadband enhancement of light harvesting and photocatalytic devices" in Book of abstracts - The Seventh International School and Conference on Photonics - PHOTONICA2019, August 26 - August 30, 2019, Belgrade (2019):167-167,
https://hdl.handle.net/21.15107/rcub_cer_5728 .

TY  - JOUR
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Obradov, Marko
AU  - Vasiljević-Radović, Dana
AU  - Nikolić, Nebojša D.
AU  - Radojević, Vesna
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3221
AB  - The mechanical properties of systems consisting of copper coatings
electrodeposited on both brass sheet (BS) and thick electrodeposited nickel
coating (ED Ni) substrates have been investigated. The electrodeposition of
copper coatings was performed with and without the ultrasound assistance. The
ultrasound application decreases root mean square (RMS) roughness of deposited Cu coating on both applied substrates, as obtained from non-contact
AFM measurement. The coating roughness is highly dependent on the substrate roughness, being the smallest for the Cu coatings deposited on ED Ni
substrate with the ultrasound mixing. The hardness and adhesion properties
were characterized using the Vickers microindentation test. Model of Korsunsky was applied to the experimental data for determination the film hardness and the model of Chen-Gao was used for the adhesion evaluation. The
introduction of ultrasonic agitation caused the changes in the film microstructure, and consequently in the mechanical properties. The copper coatings on
both substrates, have higher hardness when deposited from electrolyte with
ultrasound agitation. Although the type of the substrate has the major influence
on the adhesion strength, it can be said that Cu electrodeposition with ultrasonic mixing contributes to an increase in adhesion
AB  - Испитиванa су механичкa својствa композитних система који се састоје од електрохемијски исталожених превлака бакра на месингу (BS) и дебелим електрохемијски исталоженим превлакама никла на месинганој фолији (ED Ni) као супстратима. Превлаке
бакра на наведеним супстратима су исталожене из електролита без мешања или са
ултразвучним мешањем. Неконтактна микроскопија атомских сила (AFM) је показала
да храпавост, изражена средњом вредношћу квадратног одступања (RMS), исталожених
превлака бакра на обе врсте супстрата опада са применом ултразвучног мешања. Храпавост превлака у највећој мери зависи од храпавости супстрата, при чему су електрохемијски исталожене превлаке бакра са најмањом храпавошћу реализоване на супстратима Ni електрохемијским таложењем из електролита мешаног применом ултразвука.
Механичка својства тврдоће и адхезије превлака су анализирана Викерсовим тестом
утискивања са малим оптерећењима. За израчунавање апсолутне тврдоће превлака
коришћен је модел Korsunsky, док је за процену адхезије коришћен модел Chen-
-Gao. Примена ултразвучног мешања током процеса електрохемијског таложења бакра
довела је до промена у микроструктури превлака, па самим тим и промена у механичким својствима превлака. Превлаке бакра на оба супстрата имају већу тврдоћу када се
таложе из електролита уз ултразвучно мешање. На адхезију превлаке на подлогама највише утиче тип супстрата, али се може рећи да примена ултразвучног мешања доприноси
побољшању адхезије електрохемијски исталоженог бакра на наведеним супстратима.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance
VL  - 84
IS  - 7
SP  - 729
EP  - 741
DO  - 10.2298/JSC181003023M
ER  - 

@article{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Obradov, Marko and Vasiljević-Radović, Dana and Nikolić, Nebojša D. and Radojević, Vesna",
year = "2019",
abstract = "The mechanical properties of systems consisting of copper coatings
electrodeposited on both brass sheet (BS) and thick electrodeposited nickel
coating (ED Ni) substrates have been investigated. The electrodeposition of
copper coatings was performed with and without the ultrasound assistance. The
ultrasound application decreases root mean square (RMS) roughness of deposited Cu coating on both applied substrates, as obtained from non-contact
AFM measurement. The coating roughness is highly dependent on the substrate roughness, being the smallest for the Cu coatings deposited on ED Ni
substrate with the ultrasound mixing. The hardness and adhesion properties
were characterized using the Vickers microindentation test. Model of Korsunsky was applied to the experimental data for determination the film hardness and the model of Chen-Gao was used for the adhesion evaluation. The
introduction of ultrasonic agitation caused the changes in the film microstructure, and consequently in the mechanical properties. The copper coatings on
both substrates, have higher hardness when deposited from electrolyte with
ultrasound agitation. Although the type of the substrate has the major influence
on the adhesion strength, it can be said that Cu electrodeposition with ultrasonic mixing contributes to an increase in adhesion, Испитиванa су механичкa својствa композитних система који се састоје од електрохемијски исталожених превлака бакра на месингу (BS) и дебелим електрохемијски исталоженим превлакама никла на месинганој фолији (ED Ni) као супстратима. Превлаке
бакра на наведеним супстратима су исталожене из електролита без мешања или са
ултразвучним мешањем. Неконтактна микроскопија атомских сила (AFM) је показала
да храпавост, изражена средњом вредношћу квадратног одступања (RMS), исталожених
превлака бакра на обе врсте супстрата опада са применом ултразвучног мешања. Храпавост превлака у највећој мери зависи од храпавости супстрата, при чему су електрохемијски исталожене превлаке бакра са најмањом храпавошћу реализоване на супстратима Ni електрохемијским таложењем из електролита мешаног применом ултразвука.
Механичка својства тврдоће и адхезије превлака су анализирана Викерсовим тестом
утискивања са малим оптерећењима. За израчунавање апсолутне тврдоће превлака
коришћен је модел Korsunsky, док је за процену адхезије коришћен модел Chen-
-Gao. Примена ултразвучног мешања током процеса електрохемијског таложења бакра
довела је до промена у микроструктури превлака, па самим тим и промена у механичким својствима превлака. Превлаке бакра на оба супстрата имају већу тврдоћу када се
таложе из електролита уз ултразвучно мешање. На адхезију превлаке на подлогама највише утиче тип супстрата, али се може рећи да примена ултразвучног мешања доприноси
побољшању адхезије електрохемијски исталоженог бакра на наведеним супстратима.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance",
volume = "84",
number = "7",
pages = "729-741",
doi = "10.2298/JSC181003023M"
}

Mladenović, I., Lamovec, J., Jović, V., Obradov, M., Vasiljević-Radović, D., Nikolić, N. D.,& Radojević, V.. (2019). Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 84(7), 729-741.
https://doi.org/10.2298/JSC181003023M

Mladenović I, Lamovec J, Jović V, Obradov M, Vasiljević-Radović D, Nikolić ND, Radojević V. Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance. in Journal of the Serbian Chemical Society. 2019;84(7):729-741.
doi:10.2298/JSC181003023M .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Obradov, Marko, Vasiljević-Radović, Dana, Nikolić, Nebojša D., Radojević, Vesna, "Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance" in Journal of the Serbian Chemical Society, 84, no. 7 (2019):729-741,
https://doi.org/10.2298/JSC181003023M . .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Obradov, Marko
AU  - Radulović, Katarina
AU  - Vasiljević-Radović, Dana
AU  - Radojević, Vesna
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3227
AB  - Copper coatings are produced on silicon wafer by electrodeposition (ED) for various cathode current densities. The resulting composite systems consist of 10 μm monolayered copper films electrodeposited from sulphate bath on Si wafers with sputtered layers of Cr/Au. Hardness measurements were performed to evaluate properties of the composites. The composite hardness (H c ) was characterized using Vickers microindentation test. Then, an artificial neural network (ANN) model was used to study the relationship between the parameters of metallic composite and their hardness. Two experimental values: applied load during indentation test and current density during the ED process were used as the inputs to the neural network. Finally, the results of the composite hardness (experimental and predicted) were used to estimate the film hardness (H f ) of copper for each variations of the current density. This article shows that ANN is an useful tool in modeling composite hardness change with variation of experimental parameters predicting hardness change of composite Si/Cu with average error of 6 %. Using created ANN model it is possible to predict microhardness of Cu film for current density or indentation load for which we do not have experimental data.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters
SP  - 133
EP  - 136
DO  - 10.1109/MIEL.2019.8889610
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Obradov, Marko and Radulović, Katarina and Vasiljević-Radović, Dana and Radojević, Vesna",
year = "2019",
abstract = "Copper coatings are produced on silicon wafer by electrodeposition (ED) for various cathode current densities. The resulting composite systems consist of 10 μm monolayered copper films electrodeposited from sulphate bath on Si wafers with sputtered layers of Cr/Au. Hardness measurements were performed to evaluate properties of the composites. The composite hardness (H c ) was characterized using Vickers microindentation test. Then, an artificial neural network (ANN) model was used to study the relationship between the parameters of metallic composite and their hardness. Two experimental values: applied load during indentation test and current density during the ED process were used as the inputs to the neural network. Finally, the results of the composite hardness (experimental and predicted) were used to estimate the film hardness (H f ) of copper for each variations of the current density. This article shows that ANN is an useful tool in modeling composite hardness change with variation of experimental parameters predicting hardness change of composite Si/Cu with average error of 6 %. Using created ANN model it is possible to predict microhardness of Cu film for current density or indentation load for which we do not have experimental data.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters",
pages = "133-136",
doi = "10.1109/MIEL.2019.8889610"
}

Mladenović, I., Lamovec, J., Jović, V., Obradov, M., Radulović, K., Vasiljević-Radović, D.,& Radojević, V.. (2019). Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers (IEEE)., 133-136.
https://doi.org/10.1109/MIEL.2019.8889610

Mladenović I, Lamovec J, Jović V, Obradov M, Radulović K, Vasiljević-Radović D, Radojević V. Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:133-136.
doi:10.1109/MIEL.2019.8889610 .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Obradov, Marko, Radulović, Katarina, Vasiljević-Radović, Dana, Radojević, Vesna, "Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):133-136,
https://doi.org/10.1109/MIEL.2019.8889610 . .

TY  - CONF
AU  - Jakšić, Olga
AU  - Jokić, Ivana
AU  - Jakšić, Zoran
AU  - Obradov, Marko
AU  - Tanasković, Dragan
AU  - Randjelović, Danijela
AU  - Vasiljević-Radović, Dana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3239
AB  - We address noise and stability of adsorptionbased sensing of ternary gas mixtures in affinity-based MEMS, NEMS and NOEMS sensors. We investigate mechanisms of such chemical sensing in diverse industrial environments where ternary gas mixtures are of importance. In all existing sensing devices signal fluctuations determine their ultimate performance, and in affinity-based nanodevices the prevailing noise is caused by adsorption and desorption of different species at the sensor surface. We consider analytically and numerically detection of three-component gas mixtures. We present results obtained by applying the conventional method for assessing stability of chemical reactions to three component monolayer adsorption. Gas molecules modeling as spherical particles is suitable for applying any model regarding population dynamics, but taking molecular dimension and orientation into account is more realistic. Noise analysis in time and frequency domain is performed for two different classes of ultrahigh sensitivity adsorption based gas sensors: (nano) plasmonic sensors (refractometric devices) and MEMS/NEMS resonator-based devices.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Modeling Noise and Stability of Affinity-Based MEMS, NEMS and NOEMS Sensors of Ternary Gas Mixtures
SP  - 165
EP  - 168
DO  - 10.1109/MIEL.2019.8889577
ER  - 

@conference{
author = "Jakšić, Olga and Jokić, Ivana and Jakšić, Zoran and Obradov, Marko and Tanasković, Dragan and Randjelović, Danijela and Vasiljević-Radović, Dana",
year = "2019",
abstract = "We address noise and stability of adsorptionbased sensing of ternary gas mixtures in affinity-based MEMS, NEMS and NOEMS sensors. We investigate mechanisms of such chemical sensing in diverse industrial environments where ternary gas mixtures are of importance. In all existing sensing devices signal fluctuations determine their ultimate performance, and in affinity-based nanodevices the prevailing noise is caused by adsorption and desorption of different species at the sensor surface. We consider analytically and numerically detection of three-component gas mixtures. We present results obtained by applying the conventional method for assessing stability of chemical reactions to three component monolayer adsorption. Gas molecules modeling as spherical particles is suitable for applying any model regarding population dynamics, but taking molecular dimension and orientation into account is more realistic. Noise analysis in time and frequency domain is performed for two different classes of ultrahigh sensitivity adsorption based gas sensors: (nano) plasmonic sensors (refractometric devices) and MEMS/NEMS resonator-based devices.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Modeling Noise and Stability of Affinity-Based MEMS, NEMS and NOEMS Sensors of Ternary Gas Mixtures",
pages = "165-168",
doi = "10.1109/MIEL.2019.8889577"
}

Jakšić, O., Jokić, I., Jakšić, Z., Obradov, M., Tanasković, D., Randjelović, D.,& Vasiljević-Radović, D.. (2019). Modeling Noise and Stability of Affinity-Based MEMS, NEMS and NOEMS Sensors of Ternary Gas Mixtures. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers (IEEE)., 165-168.
https://doi.org/10.1109/MIEL.2019.8889577

Jakšić O, Jokić I, Jakšić Z, Obradov M, Tanasković D, Randjelović D, Vasiljević-Radović D. Modeling Noise and Stability of Affinity-Based MEMS, NEMS and NOEMS Sensors of Ternary Gas Mixtures. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:165-168.
doi:10.1109/MIEL.2019.8889577 .

Jakšić, Olga, Jokić, Ivana, Jakšić, Zoran, Obradov, Marko, Tanasković, Dragan, Randjelović, Danijela, Vasiljević-Radović, Dana, "Modeling Noise and Stability of Affinity-Based MEMS, NEMS and NOEMS Sensors of Ternary Gas Mixtures" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):165-168,
https://doi.org/10.1109/MIEL.2019.8889577 . .

TY  - CONF
AU  - Jakšić, Zoran
AU  - Obradov, Marko
AU  - Jakšić, Olga
AU  - Tanasković, Dragan
AU  - Vasiljević-Radović, Dana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3229
AB  - MXenes are an emerging class of two-dimensional (2D) materials consisting of carbides, nitrides or carbonitrides of early transition metals. Due to the metallic type of conductivity of MXenes and their 2D structure, they are an ideal candidate to replace the conductive materials currently used in plasmonics, especially graphene. However, the use of MXenes for plasmonics and metamaterials is in its embryonal stage and practically all relevant publications appeared in the last few years. In this contribution we first consider some methods of MXenes fabrication. We continue by analyzing the optical and electronic properties of MXenes of interest for plasmonics (especially spectral dispersion of complex relative dielectric permittivity). We proceed by reviewing some reported applications of MXenes in plasmonics, including among others conventionally designed chemical and biological sensors based on surface plasmon resonance (SPR), metasurface-based optical absorbers and MXene-based nanoantennas, as well as some possible applications in nonlinear optics. In addition to that, we propose some novel uses of MXenes in plasmonics, including chemical and biological nanosensors, superabsorbers with a variable widths of the nanoholes, etc. It is our opinion that the applications of MXenes in plasmonics introduced until now are only scratching the surface of a vast bulk of potential practical devices, structures and effects.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Reviewing MXenes for Plasmonic Applications: Beyond Graphene
SP  - 91
EP  - 94
DO  - 10.1109/MIEL.2019.8889632
ER  - 

@conference{
author = "Jakšić, Zoran and Obradov, Marko and Jakšić, Olga and Tanasković, Dragan and Vasiljević-Radović, Dana",
year = "2019",
abstract = "MXenes are an emerging class of two-dimensional (2D) materials consisting of carbides, nitrides or carbonitrides of early transition metals. Due to the metallic type of conductivity of MXenes and their 2D structure, they are an ideal candidate to replace the conductive materials currently used in plasmonics, especially graphene. However, the use of MXenes for plasmonics and metamaterials is in its embryonal stage and practically all relevant publications appeared in the last few years. In this contribution we first consider some methods of MXenes fabrication. We continue by analyzing the optical and electronic properties of MXenes of interest for plasmonics (especially spectral dispersion of complex relative dielectric permittivity). We proceed by reviewing some reported applications of MXenes in plasmonics, including among others conventionally designed chemical and biological sensors based on surface plasmon resonance (SPR), metasurface-based optical absorbers and MXene-based nanoantennas, as well as some possible applications in nonlinear optics. In addition to that, we propose some novel uses of MXenes in plasmonics, including chemical and biological nanosensors, superabsorbers with a variable widths of the nanoholes, etc. It is our opinion that the applications of MXenes in plasmonics introduced until now are only scratching the surface of a vast bulk of potential practical devices, structures and effects.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Reviewing MXenes for Plasmonic Applications: Beyond Graphene",
pages = "91-94",
doi = "10.1109/MIEL.2019.8889632"
}

Jakšić, Z., Obradov, M., Jakšić, O., Tanasković, D.,& Vasiljević-Radović, D.. (2019). Reviewing MXenes for Plasmonic Applications: Beyond Graphene. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers (IEEE)., 91-94.
https://doi.org/10.1109/MIEL.2019.8889632

Jakšić Z, Obradov M, Jakšić O, Tanasković D, Vasiljević-Radović D. Reviewing MXenes for Plasmonic Applications: Beyond Graphene. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:91-94.
doi:10.1109/MIEL.2019.8889632 .

Jakšić, Zoran, Obradov, Marko, Jakšić, Olga, Tanasković, Dragan, Vasiljević-Radović, Dana, "Reviewing MXenes for Plasmonic Applications: Beyond Graphene" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):91-94,
https://doi.org/10.1109/MIEL.2019.8889632 . .

TY  - CONF
AU  - Obradov, Marko
AU  - Jakšić, Zoran
AU  - Mladenović, Ivana
AU  - Tanasković, Dragan
AU  - Jakšić, Olga
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3228
AB  - Many micro(nano)optoelectromechanical systems (MOEMS, NOEMS) require optical (generally, electromagnetic) field localization and concentration. These include for instance photocatalytic microreactors and labs on a chip, where it is necessary to localize optical energy into a fluidic channel. Other examples are chemical and biological sensors. Plasmonics on the other hand ensures field localization down to subwavelength volumes where evanescent fields can be tailored to the shape of minuscule channels in MOEMS and NOEMS. In this work we present a possible approach to the enhancement of optical fields in MOEMS and NOEMS systems where a linear array of plasmonic bowtie structures is used to concentrate the optical field into a dielectric channel. We perform our numerical simulations using the finite element method to analyze field distributions that can be achieved by the use of the bowtie antenna and the possibility to tailor these fields. We also analyze the influence of the shape of the coupled tips of bowties to the field distribution and frequency dispersion. We conclude that arrays of plasmonic bowties could be a promising candidate for optically assisted micro and nanofluidics.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Arrays of Bowtie Plasmonic Nanoantennas for Field Enhancement in MOEMS
SP  - 87
EP  - 90
DO  - 10.1109/MIEL.2019.8889622
ER  - 

@conference{
author = "Obradov, Marko and Jakšić, Zoran and Mladenović, Ivana and Tanasković, Dragan and Jakšić, Olga",
year = "2019",
abstract = "Many micro(nano)optoelectromechanical systems (MOEMS, NOEMS) require optical (generally, electromagnetic) field localization and concentration. These include for instance photocatalytic microreactors and labs on a chip, where it is necessary to localize optical energy into a fluidic channel. Other examples are chemical and biological sensors. Plasmonics on the other hand ensures field localization down to subwavelength volumes where evanescent fields can be tailored to the shape of minuscule channels in MOEMS and NOEMS. In this work we present a possible approach to the enhancement of optical fields in MOEMS and NOEMS systems where a linear array of plasmonic bowtie structures is used to concentrate the optical field into a dielectric channel. We perform our numerical simulations using the finite element method to analyze field distributions that can be achieved by the use of the bowtie antenna and the possibility to tailor these fields. We also analyze the influence of the shape of the coupled tips of bowties to the field distribution and frequency dispersion. We conclude that arrays of plasmonic bowties could be a promising candidate for optically assisted micro and nanofluidics.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Arrays of Bowtie Plasmonic Nanoantennas for Field Enhancement in MOEMS",
pages = "87-90",
doi = "10.1109/MIEL.2019.8889622"
}

Obradov, M., Jakšić, Z., Mladenović, I., Tanasković, D.,& Jakšić, O.. (2019). Arrays of Bowtie Plasmonic Nanoantennas for Field Enhancement in MOEMS. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers (IEEE)., 87-90.
https://doi.org/10.1109/MIEL.2019.8889622

Obradov M, Jakšić Z, Mladenović I, Tanasković D, Jakšić O. Arrays of Bowtie Plasmonic Nanoantennas for Field Enhancement in MOEMS. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:87-90.
doi:10.1109/MIEL.2019.8889622 .

Obradov, Marko, Jakšić, Zoran, Mladenović, Ivana, Tanasković, Dragan, Jakšić, Olga, "Arrays of Bowtie Plasmonic Nanoantennas for Field Enhancement in MOEMS" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):87-90,
https://doi.org/10.1109/MIEL.2019.8889622 . .