Characterization of heterogeneous sensing layers in graphene-based gas sensors
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Graphene-based sensors have a great potential for applications in public and personal health protection, including defense and security fields. However, sensitivity and selectivity of such sensors are inherently dependent on adsorption properties of the graphene sensing layer, which is typically of heterogeneous morphology and/or of heterogeneous chemical composition due to intentionally introduced functionalizing elements or spontaneously adsorbed molecules during sensor fabrication or operation. Therefore, characterization and optimization of sensing layers is extremely important for achieving high sensing performance. In this work, we present a method for characterization of the heterogeneous sensing layer by using the frequency domain analysis of the sensor output signal. The method is based on the mathematical model we devised. Here, the model is presented in detail for the case of a surface with three types of adsorption sites, and then the method is applied for extraction of par...ameters that characterize adsorption properties of a graphene sensing layer.
Кључне речи:
gas sensor / graphene / heterogeneous sensing layer / sensing surface characterizationИзвор:
Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, 13-14 October 2022, Belgrade, Serbia, 2022Издавач:
- Belgrade : The Military Technical Institute
Финансирање / пројекти:
- Gramulsen - Graphene-Based Wearable Multiparameter Sensor (RS-6057070)
- Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-200026)
Институција/група
IHTMTY - CONF AU - Andrić, Stevan AU - Jokić, Ivana AU - Frantlović, Miloš AU - Radulović, Katarina AU - Spasenović, Marko PY - 2022 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5825 AB - Graphene-based sensors have a great potential for applications in public and personal health protection, including defense and security fields. However, sensitivity and selectivity of such sensors are inherently dependent on adsorption properties of the graphene sensing layer, which is typically of heterogeneous morphology and/or of heterogeneous chemical composition due to intentionally introduced functionalizing elements or spontaneously adsorbed molecules during sensor fabrication or operation. Therefore, characterization and optimization of sensing layers is extremely important for achieving high sensing performance. In this work, we present a method for characterization of the heterogeneous sensing layer by using the frequency domain analysis of the sensor output signal. The method is based on the mathematical model we devised. Here, the model is presented in detail for the case of a surface with three types of adsorption sites, and then the method is applied for extraction of parameters that characterize adsorption properties of a graphene sensing layer. PB - Belgrade : The Military Technical Institute C3 - Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, 13-14 October 2022, Belgrade, Serbia T1 - Characterization of heterogeneous sensing layers in graphene-based gas sensors UR - https://hdl.handle.net/21.15107/rcub_cer_5825 ER -
@conference{ author = "Andrić, Stevan and Jokić, Ivana and Frantlović, Miloš and Radulović, Katarina and Spasenović, Marko", year = "2022", abstract = "Graphene-based sensors have a great potential for applications in public and personal health protection, including defense and security fields. However, sensitivity and selectivity of such sensors are inherently dependent on adsorption properties of the graphene sensing layer, which is typically of heterogeneous morphology and/or of heterogeneous chemical composition due to intentionally introduced functionalizing elements or spontaneously adsorbed molecules during sensor fabrication or operation. Therefore, characterization and optimization of sensing layers is extremely important for achieving high sensing performance. In this work, we present a method for characterization of the heterogeneous sensing layer by using the frequency domain analysis of the sensor output signal. The method is based on the mathematical model we devised. Here, the model is presented in detail for the case of a surface with three types of adsorption sites, and then the method is applied for extraction of parameters that characterize adsorption properties of a graphene sensing layer.", publisher = "Belgrade : The Military Technical Institute", journal = "Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, 13-14 October 2022, Belgrade, Serbia", title = "Characterization of heterogeneous sensing layers in graphene-based gas sensors", url = "https://hdl.handle.net/21.15107/rcub_cer_5825" }
Andrić, S., Jokić, I., Frantlović, M., Radulović, K.,& Spasenović, M.. (2022). Characterization of heterogeneous sensing layers in graphene-based gas sensors. in Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, 13-14 October 2022, Belgrade, Serbia Belgrade : The Military Technical Institute.. https://hdl.handle.net/21.15107/rcub_cer_5825
Andrić S, Jokić I, Frantlović M, Radulović K, Spasenović M. Characterization of heterogeneous sensing layers in graphene-based gas sensors. in Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, 13-14 October 2022, Belgrade, Serbia. 2022;. https://hdl.handle.net/21.15107/rcub_cer_5825 .
Andrić, Stevan, Jokić, Ivana, Frantlović, Miloš, Radulović, Katarina, Spasenović, Marko, "Characterization of heterogeneous sensing layers in graphene-based gas sensors" in Proceedings - 10th International Scientific Conference on Defensive Technologies, OTEH 2022, 13-14 October 2022, Belgrade, Serbia (2022), https://hdl.handle.net/21.15107/rcub_cer_5825 .