Electrical and structural properties of RGTO-In2O3 sensors for ozone detection

被引:33
作者
Faglia, G [1 ]
Allieri, B [1 ]
Comini, E [1 ]
Depero, LE [1 ]
Sangaletti, L [1 ]
Sberveglieri, G [1 ]
机构
[1] Univ Brescia, NFM, Dept Chem & Phys Mat, I-25133 Brescia, Italy
关键词
ozone sensing; indium compounds; metal oxide gas sensors;
D O I
10.1016/S0925-4005(99)00079-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Bare and An-doped indium oxide thin films have been characterized as ozone sensors. Active layers have been obtained by oxidation of a metallic In thin film through the RGTO technique. Structural characterization showed that only the In2O3 phase is present for oxidation temperatures greater than 250 degrees C. At the: operating temperature of 400 degrees C, response to ozone was greater, stable and reproducible. An introduction as a catalyst increased the overall response and reduced to about 300 degrees C the temperature where ozone/surface reactions are enhanced. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:188 / 191
页数:4
相关论文
共 6 条
[1]  
DOLL T, 1997, TRANSDUCERS 97, V1, P577
[2]  
DORI L, 1997, P EUR 11 WARS SEPT, V1, P289
[3]  
SANGALETTI L, 1998, J MAT RES, V13
[4]   RECENT DEVELOPMENTS IN SEMICONDUCTING THIN-FILM GAS SENSORS [J].
SBERVEGLIERI, G .
SENSORS AND ACTUATORS B-CHEMICAL, 1995, 23 (2-3) :103-109
[5]  
Takada T., 1989, CHEM SENSOR TECHNOLO, V<bold>2</bold>, P59
[6]  
WLODARSKI W, 1997, TRANSDUCERS 9M, V1, P573