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ZnO-based gas microsensors sensitive to CO at room temperature by photoactivation

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    0472711 - ÚFM 2017 RIV NL eng C - Conference Paper (international conference)
    Vallejos, S. - Gracia, I. - Figueras, E. - Pizúrová, Naděžda - Hubálek, J. - Cane, C.
    ZnO-based gas microsensors sensitive to CO at room temperature by photoactivation.
    PROCEEDINGS OF THE 30TH ANNIVERSARY EUROSENSORS CONFERENCE - EUROSENSORS 2016. Amsterdam: ELSEVIER SCIENCE BV, 2016 - (Barsony, I.; Zolnai, Z.; Battistig, G.), s. 415-418. Procedia Engineering, 168. ISSN 1877-7058.
    [Eurosensors Conference /30./. EUROSENSORS 2016. Budapest (HU), 04.09.2016-07.09.2016]
    Institutional support: RVO:68081723
    Keywords : ZnO * gas sensors * CO * room temperature
    Subject RIV: CF - Physical ; Theoretical Chemistry

    Gas microsensors based on ZnO structures grown via aerosol-assisted chemical vapor deposition are fabricated. The photoactivated and thermoactivated gas sensing properties of these systems toward CO are presented. Results demonstrate photoactivated responses at room temperature with improved characteristics, which include 35 % higher response and 7% faster response times, compared to the thermoactivated response of the sensors at 250 degrees C. This characteristic becomes significantly advantageous as it allows for the sensor to operate without integrated heaters minimizing the power consumption of the system. (C) 2016 The Authors. Published by Elsevier Ltd.
    Permanent Link: http://hdl.handle.net/11104/0269941

     
     
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