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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2019, Volume 45, Issue 20, Pages 7–10
DOI: https://doi.org/10.21883/PJTF.2019.20.48384.17901
(Mi pjtf5286)
 

This article is cited in 8 scientific papers (total in 8 papers)

Selective sensors of nitrogen dioxide based on thin tungsten oxide films under optical irradiation

A. V. Almaev, N. N. Yakovlev, E. V. Chernikov, O. P. Tolbanov

Tomsk State University
Full-text PDF (97 kB) Citations (8)
Abstract: It is shown that NO$_{2}$ present in air, beginning at a concentration of 1 ppm, can be selectively detected by sensors based on Au/WO$_{3}$ : Au thin films activated by laser diode radiation with maximum intensity at 400 nm instead of constant heating. The radiation-activated photodesorption reduces the time of sensor response to NO$_{2}$. A high humidity of air under conditions of room-temperature irradiation additionally increases the device sensitivity to NO$_{2}$ due to the appearance of additional adsorption sites. The absence of a sensor response to reducing gases and varying oxygen concentration in the atmosphere is caused by the photodesorption of chemisorbed O$_{2}^{-}$ species during their interaction with holes generated in intrinsic optical transitions in the near-surface region of WO$_{3}$ film.
Keywords: nitrogen dioxide, tungsten trioxide, thin films, magnetron sputtering, optical radiation.
Received: 03.06.2019
Revised: 24.06.2019
Accepted: 26.06.2019
English version:
Technical Physics Letters, 2019, Volume 45, Issue 10, Pages 1016–1019
DOI: https://doi.org/10.1134/S1063785019100171
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. V. Almaev, N. N. Yakovlev, E. V. Chernikov, O. P. Tolbanov, “Selective sensors of nitrogen dioxide based on thin tungsten oxide films under optical irradiation”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 45:20 (2019), 7–10; Tech. Phys. Lett., 45:10 (2019), 1016–1019
Citation in format AMSBIB
\Bibitem{AlmYakChe19}
\by A.~V.~Almaev, N.~N.~Yakovlev, E.~V.~Chernikov, O.~P.~Tolbanov
\paper Selective sensors of nitrogen dioxide based on thin tungsten oxide films under optical irradiation
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2019
\vol 45
\issue 20
\pages 7--10
\mathnet{http://mi.mathnet.ru/pjtf5286}
\crossref{https://doi.org/10.21883/PJTF.2019.20.48384.17901}
\elib{https://elibrary.ru/item.asp?id=41300899}
\transl
\jour Tech. Phys. Lett.
\yr 2019
\vol 45
\issue 10
\pages 1016--1019
\crossref{https://doi.org/10.1134/S1063785019100171}
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  • This publication is cited in the following 8 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Pisma v Zhurnal Tekhnicheskoi Fiziki Pisma v Zhurnal Tekhnicheskoi Fiziki
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