PHOTOSENSITIVITY ACTIVATION OF SNO2 THIN-FILM GAS SENSORS AT ROOM-TEMPERATURE

Authors
CAMAGNI P FAGLIA G GALINETTO P PEREGO C SAMOGGIA G SBERVEGLIERI G
Citation
P. Camagni et al., PHOTOSENSITIVITY ACTIVATION OF SNO2 THIN-FILM GAS SENSORS AT ROOM-TEMPERATURE, Sensors and actuators. B, Chemical, 31(1-2), 1996, pp. 99-103
Citations number
3
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
31
Issue
1-2
Year of publication
1996
Pages
99 - 103
Database
ISI
SICI code
0925-4005(1996)31:1-2<99:PAOSTG>2.0.ZU;2-M
Abstract
In this work the results of photoconductivity measurements on SnO2 thi n films gas sensors grown by the rheotaxial growth and thermal oxidati on (RGTO) technique are presented. It is shown that thin films, illumi nated with UV light at room temperature, become sensitive to oxygen an d reducing gases like CO. On the contrary the response to CO is not af fected by illumination when the sensor is kept at the usual working te mperature (T = 673 K).