0600832 - FZÚ 2025 RIV SK eng C - Conference Paper (international conference)
Kočí, Michal - Szabó, Ondrej - Izsák, T. - Godzierz, M. - Wróbel, P. - Vanko, G. - Sojková, M. - Kromka, Alexander - Husák, M.
Diamond and 2D material heterostructures as a platform for room temperature detection of gases.
Proceedings of ADEPT - ADEPT 2024. Žilina: University of Žilina, 2024 - (Feiler, M.; Ziman, M.; Kováčová, S.; Kováč, jr., J.), s. 69-72. ISBN 978-80-554-2109-4.
[International Conference on Advances in Electronic and Photonic Technologies /12./ - ADEPT 2024. Podbanské (SK), 24.06.2024-27.06.2024]
R&D Projects: GA MŠMT(CZ) EH22_008/0004596
Grant - others:AV ČR(CZ) CSIR-23-05; AV ČR(PL) PAN-24-20
Program: Bilaterální spolupráce; Bilaterální spolupráce
Institutional support: RVO:68378271
Keywords : gas sensors * heterostructure composites * hydrogen-terminated nanocrystalline diamond * molybdenum disulfide * thiol-functionalized graphene oxide
OECD category: Materials engineering

Heterostructure composite sensors utilize different parameters, resulting in improved response, selectivity, and reproducibility compared to pure materials. Ensuring clean air is fundamental for upholding a favorable quality of life on Earth. Supporting that knowledge, we present here an advanced material platform for room temperature conductivity gas sensors based on H-NCD films combined with a second gas-sensitive material, such as MoS2, rGO, SH-GO, or Au NPs. This platform supports the knowledge of gas sensing technology. Most of these diamond-based heterostructures based on diamonds exhibited improved gas sensing parameters and demonstrated a significant electrical response to gases at room temperature. In particular, the combination of SH-GO / H-NCD (two p-type materials) showed up to 630 % response for ethanol vapor. The synthesis of individual layers and measurement of sensor parameters are presented, and comparison and critical evaluation of responses.
Permanent Link: https://hdl.handle.net/11104/0358098
Research data: Zenodo