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Original title:
Gas sensors based on diamond heterostructures for air quality monitoring
Authors: Kočí, Michal ; Szabó, Ondrej ; Izsák, T. ; Sojková, M. ; Godzierz, M. ; Wróbel, P. ; Husák, M. ; Kromka, Alexander
Document type: Papers
Conference/Event: NANOCON 2023 - International Conference on Nanomaterials - Research & Application /15./, Brno (CZ), 20231018
Year: 2024
Language: eng
Abstract: Currently, great emphasis is placed on air quality and the presence of pollutants. Attention is therefore focused on new gas-sensing materials enabling detection even at low (up to room) temperatures with sufficient response and short reaction time. Here, we investigate the suitability of H-NCD films and their heterostructures with MoS2, GO, rGO, SH-GO, or Au NPs for gas sensing applications. Electrical properties are measured for oxidizing gas NO2, reducing gas NH3, and chemical vapor of ethanol, and at temperatures varied from room temperature to 125 °C. In contrast to the individual forms of employed materials with limited response to the exposed gases, the HNCD heterostructures revealed better sensing properties. In particular, the Au NPs/H-NCD heterostructures revealed a higher response at 125 °C in contrast to H-NCD, MoS2/H-NCD had quite good response even at room temperature and GO/H-NCD revealed high sensitivity to chemical vapor, which further improved for the SH-GO/HNCD.
Keywords: air quality monitoring; gas sensors; heterostructures; nanocrystalline diamond
Project no.: LM2023051 (CEP), CSIR-23-05 (CEP), PAN-20-21
Funding provider: GA MŠk, AV ČR, AV ČR
Host item entry: NANOCON 2023 Conference Proceedings, ISBN 978-80-88365-15-0, ISSN 2694-930X
Institution: Institute of Physics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: https://www.confer.cz/nanocon/2023/read/4785-gas-sensors-based-on-diamond-heterostructures-for-air-quality-monitoring.pdf
Original record: https://hdl.handle.net/11104/0353913
Permalink: http://www.nusl.cz/ntk/nusl-616423
The record appears in these collections:
Research > Institutes ASCR > Institute of Physics
Conference materials > Papers
Authors: Kočí, Michal ; Szabó, Ondrej ; Izsák, T. ; Sojková, M. ; Godzierz, M. ; Wróbel, P. ; Husák, M. ; Kromka, Alexander
Document type: Papers
Conference/Event: NANOCON 2023 - International Conference on Nanomaterials - Research & Application /15./, Brno (CZ), 20231018
Year: 2024
Language: eng
Abstract: Currently, great emphasis is placed on air quality and the presence of pollutants. Attention is therefore focused on new gas-sensing materials enabling detection even at low (up to room) temperatures with sufficient response and short reaction time. Here, we investigate the suitability of H-NCD films and their heterostructures with MoS2, GO, rGO, SH-GO, or Au NPs for gas sensing applications. Electrical properties are measured for oxidizing gas NO2, reducing gas NH3, and chemical vapor of ethanol, and at temperatures varied from room temperature to 125 °C. In contrast to the individual forms of employed materials with limited response to the exposed gases, the HNCD heterostructures revealed better sensing properties. In particular, the Au NPs/H-NCD heterostructures revealed a higher response at 125 °C in contrast to H-NCD, MoS2/H-NCD had quite good response even at room temperature and GO/H-NCD revealed high sensitivity to chemical vapor, which further improved for the SH-GO/HNCD.
Keywords: air quality monitoring; gas sensors; heterostructures; nanocrystalline diamond
Project no.: LM2023051 (CEP), CSIR-23-05 (CEP), PAN-20-21
Funding provider: GA MŠk, AV ČR, AV ČR
Host item entry: NANOCON 2023 Conference Proceedings, ISBN 978-80-88365-15-0, ISSN 2694-930X
Institution: Institute of Physics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: https://www.confer.cz/nanocon/2023/read/4785-gas-sensors-based-on-diamond-heterostructures-for-air-quality-monitoring.pdf
Original record: https://hdl.handle.net/11104/0353913
Permalink: http://www.nusl.cz/ntk/nusl-616423
The record appears in these collections:
Research > Institutes ASCR > Institute of Physics
Conference materials > Papers
Record created 2024-06-15, last modified 2024-07-20