TY  - JOUR
AU  - Nikolić, P.M.
AU  - Vasiljević-Radović, Dana
AU  - Radulović, Katarina
AU  - Bojičić, A.I.
AU  - Luković, D.
AU  - Savić, S.
AU  - Blagojević, V.
AU  - Vujatović, S.
AU  - Lukić, L.
AU  - Urošević, D.
PY  - 2005
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5691
AB  - Anisotropy in thermal and electronic properties for two directions of thermal wave propagation in the GaSe single crystal was investigated using photoacoustic (PA) frequency transmission techniques. First, the electric field of an incident polarized light beam was adjusted to be perpendicular to the c-axis ( $\vec{E}\perp c$) and then parallel to it ( $\vec{E}\Vert c$). An obvious difference in the PA phase and amplitude spectra of the same sample for these two cases was shown. The thermal diffusivity DT obtained by the fitting procedure for these two orientations of the electric field were calculated as $D_{T/\!/}=0.46\times10^{-5}$m2/s and $D_{T\perp}=0.62\times10^{-6}$m2/s eg. Their ratio is about 7.4. The electronic transport parameters are also given. The carrier diffusion coefficient D$_{\rm II}$ is $0.53\times10^{-3}$ m2/s and D$_{\perp}$ is $0.3\times10^{-3}$ m2/s.
PB  - EDP Sciences
T2  - J. Phys. IV France
T1  - Anisotropy in thermal and electronic properties of single crystal GaSe determined by the photoacoustic method
VL  - 125
SP  - 427
EP  - 429
DO  - 10.1051/jp4:2005125100
ER  - 

@article{
author = "Nikolić, P.M. and Vasiljević-Radović, Dana and Radulović, Katarina and Bojičić, A.I. and Luković, D. and Savić, S. and Blagojević, V. and Vujatović, S. and Lukić, L. and Urošević, D.",
year = "2005",
abstract = "Anisotropy in thermal and electronic properties for two directions of thermal wave propagation in the GaSe single crystal was investigated using photoacoustic (PA) frequency transmission techniques. First, the electric field of an incident polarized light beam was adjusted to be perpendicular to the c-axis ( $\vec{E}\perp c$) and then parallel to it ( $\vec{E}\Vert c$). An obvious difference in the PA phase and amplitude spectra of the same sample for these two cases was shown. The thermal diffusivity DT obtained by the fitting procedure for these two orientations of the electric field were calculated as $D_{T/\!/}=0.46\times10^{-5}$m2/s and $D_{T\perp}=0.62\times10^{-6}$m2/s eg. Their ratio is about 7.4. The electronic transport parameters are also given. The carrier diffusion coefficient D$_{\rm II}$ is $0.53\times10^{-3}$ m2/s and D$_{\perp}$ is $0.3\times10^{-3}$ m2/s.",
publisher = "EDP Sciences",
journal = "J. Phys. IV France",
title = "Anisotropy in thermal and electronic properties of single crystal GaSe determined by the photoacoustic method",
volume = "125",
pages = "427-429",
doi = "10.1051/jp4:2005125100"
}

Nikolić, P.M., Vasiljević-Radović, D., Radulović, K., Bojičić, A.I., Luković, D., Savić, S., Blagojević, V., Vujatović, S., Lukić, L.,& Urošević, D.. (2005). Anisotropy in thermal and electronic properties of single crystal GaSe determined by the photoacoustic method. in J. Phys. IV France
EDP Sciences., 125, 427-429.
https://doi.org/10.1051/jp4:2005125100

Nikolić P, Vasiljević-Radović D, Radulović K, Bojičić A, Luković D, Savić S, Blagojević V, Vujatović S, Lukić L, Urošević D. Anisotropy in thermal and electronic properties of single crystal GaSe determined by the photoacoustic method. in J. Phys. IV France. 2005;125:427-429.
doi:10.1051/jp4:2005125100 .

Nikolić, P.M., Vasiljević-Radović, Dana, Radulović, Katarina, Bojičić, A.I., Luković, D., Savić, S., Blagojević, V., Vujatović, S., Lukić, L., Urošević, D., "Anisotropy in thermal and electronic properties of single crystal GaSe determined by the photoacoustic method" in J. Phys. IV France, 125 (2005):427-429,
https://doi.org/10.1051/jp4:2005125100 . .

TY  - JOUR
AU  - Aleksić, O.A.
AU  - Nikolić, Pantelija M.
AU  - Luković, D.
AU  - Radulović, Katarina
AU  - Vasiljević-Radović, Dana
AU  - Savić, S.
PY  - 2004
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5693
AB  - The thermal diffusivity of thick film NTC layers based on a metal oxide powder mixture was measured at room temperature by the photoacoustic (PA) technique. The powder mixture was composed of MnO (60 percent), CoO (32 percent) and Fe2O3 (8 percent), which were ball milled to nanometer particle size. NTC layers of different thicknesses were made by sequentional screen‐printing followed by drying and co‐firing at 850, 900 and 1,000°C in a hybrid conveyor furnace. The experimental PA phase and amplitude diagrams were numerically analyzed and the thermal diffusivity and electron transport parameters were calculated. An increase of thermal diffusivity with sintering temperature was observed. The fractal structure model was in agreement with the experimental data for modulation frequencies in which the sample behaved as thermally thick.
PB  - Emerald
T2  - Microelectronics International
T1  - Thermal diffusivity of NTC lasers obtained by photoacoustic technique
VL  - 21
IS  - 1
SP  - 10
EP  - 14
DO  - 10.1108/13565360410517120
ER  - 

@article{
author = "Aleksić, O.A. and Nikolić, Pantelija M. and Luković, D. and Radulović, Katarina and Vasiljević-Radović, Dana and Savić, S.",
year = "2004",
abstract = "The thermal diffusivity of thick film NTC layers based on a metal oxide powder mixture was measured at room temperature by the photoacoustic (PA) technique. The powder mixture was composed of MnO (60 percent), CoO (32 percent) and Fe2O3 (8 percent), which were ball milled to nanometer particle size. NTC layers of different thicknesses were made by sequentional screen‐printing followed by drying and co‐firing at 850, 900 and 1,000°C in a hybrid conveyor furnace. The experimental PA phase and amplitude diagrams were numerically analyzed and the thermal diffusivity and electron transport parameters were calculated. An increase of thermal diffusivity with sintering temperature was observed. The fractal structure model was in agreement with the experimental data for modulation frequencies in which the sample behaved as thermally thick.",
publisher = "Emerald",
journal = "Microelectronics International",
title = "Thermal diffusivity of NTC lasers obtained by photoacoustic technique",
volume = "21",
number = "1",
pages = "10-14",
doi = "10.1108/13565360410517120"
}

Aleksić, O.A., Nikolić, P. M., Luković, D., Radulović, K., Vasiljević-Radović, D.,& Savić, S.. (2004). Thermal diffusivity of NTC lasers obtained by photoacoustic technique. in Microelectronics International
Emerald., 21(1), 10-14.
https://doi.org/10.1108/13565360410517120

Aleksić O, Nikolić PM, Luković D, Radulović K, Vasiljević-Radović D, Savić S. Thermal diffusivity of NTC lasers obtained by photoacoustic technique. in Microelectronics International. 2004;21(1):10-14.
doi:10.1108/13565360410517120 .

Aleksić, O.A., Nikolić, Pantelija M., Luković, D., Radulović, Katarina, Vasiljević-Radović, Dana, Savić, S., "Thermal diffusivity of NTC lasers obtained by photoacoustic technique" in Microelectronics International, 21, no. 1 (2004):10-14,
https://doi.org/10.1108/13565360410517120 . .