CUO SNO2 THIN-FILM HETEROSTRUCTURES AS CHEMICAL SENSORS TO H2S/

Authors
VASILIEV RB RUMYANTSEVA MN YAKOVLEV NV GASKOV AM
Citation
Rb. Vasiliev et al., CUO SNO2 THIN-FILM HETEROSTRUCTURES AS CHEMICAL SENSORS TO H2S/, Sensors and actuators. B, Chemical, 50(3), 1998, pp. 186-193
Citations number
10
Categorie Soggetti
Electrochemistry,"Chemistry Analytical","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
50
Issue
3
Year of publication
1998
Pages
186 - 193
Database
ISI
SICI code
0925-4005(1998)50:3<186:CSTHAC>2.0.ZU;2-5
Abstract
CuO/SnO2 heterostructures as well as SnO2(CuO) polycrystalline films h ave been studied for H2S sensing. Gas sensing properties of these mate rials have been compared in conditions: 25-300 ppm H2S in N-2 at 100-2 50 degrees C. A shorter response time of the heterostructures as compa red to that of the SnO2(CuO) films has been found. It is suggested tha t the improvement of dynamic sensor properties of SnO2/CuO heterostruc tures is caused by the localization of electrical barrier between CuO and SnO2 layers. (C) 1998 Elsevier Science S.A. All rights reserved.