Number of the records: 1  

Enhancement of diamond gas sensor responses by gold nanoparticles

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    SYSNO ASEP0570990
    Document TypeA - Abstract
    R&D Document TypeO - Ostatní
    TitleEnhancement of diamond gas sensor responses by gold nanoparticles
    Author(s) Kočí, Michal (FZU-D) ORCID
    Szabó, Ondrej (FZU-D) ORCID, RID
    Husák, M. (CZ)
    Kromka, Alexander (FZU-D) RID, ORCID, SAI
    Number of authors4
    Source TitleNANOCON 2022 - Book of Abstracts. - Ostrava : Tanger Ltd, 2022 / Zbořil R. ; Váňová J. - ISBN 978-80-88365-07-5
    S. 62-62
    Number of pages1 s.
    Publication formOnline - E
    ActionInternational Conference on Nanomaterials - Research & Application /14./ NANOCON
    Event date19.10.2022 - 21.10.2022
    VEvent locationBrno
    CountryCZ - Czech Republic
    Event typeWRD
    Languageeng - English
    CountryCZ - Czech Republic
    Keywordsgas sensors ; nanocrystalline diamond (NCD) ; gold nanoparticles (Au NPs)
    Subject RIVJB - Sensors, Measurment, Regulation
    OECD categoryMaterials engineering
    Institutional supportFZU-D - RVO:68378271
    AnnotationThe nanocrystalline diamond (NCD) film reveals a unique combination of physical, chemical, and optoelectronic properties, which makes it a promising material for various sensing applications. Here, we investigated the influence of preparation technology (two types of CVD systems), top-surface termination (oxygen vs hydrogen), and Au nanoparticles on the gas sensing properties of NCD films. The electrical properties (resistance changes) are measured for oxidizing gas NO2, reducing gas NH3, and neutral synthetic air at temperatures varied from room temperature to 125°C. The measured parameters of the tested diamond sensors are compared and subsequently evaluated. The surface morphology is significant for gas sensors, as a larger surface area (higher roughness) increases the response to different gases. While the NCD termination with hydrogen is principally required for the gas sensor functionality, the Au nanoparticles further enhanced the sensor dynamic response and response magnitude.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2024
Number of the records: 1  

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