Selective Sensors of Nitrogen Dioxide Based on Thin Tungsten Oxide Films under Optical Irradiation

被引：8
作者：
Almaev, A., V [1 ]
Yakovlev, N. N. [1 ]
Chernikov, E., V [1 ]
Tolbanov, O. P. [1 ]
机构：
[1] Tomsk State Univ, Tomsk 634050, Russia
来源：
TECHNICAL PHYSICS LETTERS | 2019年 / 45卷 / 10期
关键词：
nitrogen dioxide; tungsten trioxide; thin films; magnetron sputtering; optical radiation; LIGHT; CDSE; SNO2; NO2; ZNO;
D O I：
10.1134/S1063785019100171
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
It is shown that NO2 present in air, beginning at a concentration of 1 ppm, can be selectively detected by sensors based on Au/WO3: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 NO2. A high humidity of air under conditions of room-temperature irradiation additionally increases the device sensitivity to NO2 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 WO3 film.
引用
收藏
页码：1016 / 1019
页数：4
相关论文
共 10 条
[1]   The microstructure and properties of thin WO3 films modified by gold [J].
Anisimov, O. V. ;
Maksimova, N. K. ;
Naiden, Yu. P. ;
Novikov, V. A. ;
Sevast'yanov, E. Yu. ;
Rudov, F. V. ;
Chernikov, E. V. .
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2010, 84 (07) :1220-1225
[2]   Effect of gold on the properties of nitrogen dioxide sensors based on thin WO3 films [J].
Anisimov, O. V. ;
Gaman, V. I. ;
Maksimova, N. K. ;
Najden, Yu. P. ;
Novikov, V. A. ;
Sevastyanov, E. Yu. ;
Rudov, F. V. ;
Chernikov, E. V. .
SEMICONDUCTORS, 2010, 44 (03) :366-372
[3]   The Effect of CdSe and InP Quantum Dots on the Interaction of ZnO with NO2 under Visible Light Irradiation [J].
Chizhov, A. S. ;
Mordvinova, N. E. ;
Rumyantseva, M. N. ;
Krylov, I. V. ;
Drozdov, K. A. ;
Li, Xiaogan ;
Gas'kov, A. M. .
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2018, 63 (04) :512-518
[4]   Visible light activation of room temperature NO2 gas sensors based on ZnO, SnO2 and In2O3 sensitized with CdSe quantum dots [J].
Chizhov, A. S. ;
Rumyantseva, M. N. ;
Vasiliev, R. B. ;
Filatova, D. G. ;
Drozdov, K. A. ;
Krylov, I. V. ;
Marchevsky, A. V. ;
Karakulina, O. M. ;
Abakumov, A. M. ;
Gaskov, A. M. .
THIN SOLID FILMS, 2016, 618 :253-262
[5]   The effect of radiation parameters on the performance of photo-activated gas sensors [J].
Espid, Ehsan ;
Noce, Aline Satomi ;
Taghipour, Fariborz .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2019, 374 :95-105
[6]   Optical band-gap determination of nanostructured WO3 film [J].
Gonzalez-Borrero, P. P. ;
Sato, F. ;
Medina, A. N. ;
Baesso, M. L. ;
Bento, A. C. ;
Baldissera, G. ;
Persson, C. ;
Niklasson, G. A. ;
Granqvist, C. G. ;
da Silva, A. Ferreira .
APPLIED PHYSICS LETTERS, 2010, 96 (06)
[7]   Highly sensitive and selective NO2 sensor based on Au-impregnated WO3 nanorods [J].
Kabcum, S. ;
Kotchasak, N. ;
Channei, D. ;
Tuantranont, A. ;
Wisitsoraat, A. ;
Phanichphant, S. ;
Liewhiran, C. .
SENSORS AND ACTUATORS B-CHEMICAL, 2017, 252 :523-536
[8]   Influence of light on the adsorption processes during interaction between reducer gases and a SnO2 film [J].
Rembeza, S. I. ;
Svistova, T. V. ;
Kosheleva, N. N. ;
Ovsyannikov, S. V. ;
Al Tameemi, V. M. K. .
TECHNICAL PHYSICS LETTERS, 2015, 41 (12) :1128-1131
[9]   Exhaled breath gas sensing using pristine and functionalized WO3 nanowire sensors enhanced by UV-light irradiation [J].
Saidi, Tarik ;
Palmowski, Dariusz ;
Babicz-Kiewlicz, Sylwia ;
Welearegay, Tesfalem Geremariam ;
El Bari, Nezha ;
Ionescu, Radu ;
Smulko, Janusz ;
Bouchikhi, Benachir .
SENSORS AND ACTUATORS B-CHEMICAL, 2018, 273 :1719-1729
[10]  
Volkenshtein F.F., 1987, ELECT PROCESSES SURF
1