Gas sensing properties of SnO 2 thin films modified by Ag nanoclusters synthesized by SILD method

Abstract

The effect of SnO 2 surface modification by Ag nanoclusters, synthesized by SILD method, on the operating characteristics of thin film gas sensors was studied and models for the promotional role of Ag additives were discussed. It was found that mentioned above approach can be used for improvement both the sensitivity and the rate of response of the SnO 2-based gas sensors to CO and H 2. At the same time, the presence of the Ag clusters on the surface of SnO 2 depressed the sensor response to ozone.