Undoped and Pd-doped SnO2-based thin film chemical sensors have been developed by means of the sol-gel technique. The prepared films were sensitive to CO gas as demonstrated by a change in electrical conductivity. The temperature dependence of the resistance change and response and recovery times have been measured. An improvement of the sensitivity and a lower operating temperature were observed in Pd-modified films.
CO sensing properties of SnO2 thin films prepared by the sol-gel process
RELLA, Roberto;SERRA, Antonio;SICILIANO, PIETRO;VASANELLI, Lorenzo;LICCIULLI, ANTONIO ALESSANDRO
1997-01-01
Abstract
Undoped and Pd-doped SnO2-based thin film chemical sensors have been developed by means of the sol-gel technique. The prepared films were sensitive to CO gas as demonstrated by a change in electrical conductivity. The temperature dependence of the resistance change and response and recovery times have been measured. An improvement of the sensitivity and a lower operating temperature were observed in Pd-modified films.File in questo prodotto:
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