SENSITIVITY TO OXYGEN AND RESPONSE CHARACTERISTICS OF NANOCRYSTALLINE SnO2 AT ROOM TEMPERATURE

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)55-63
Journal / PublicationNanostructured Materials
Volume10
Issue number1
Publication statusPublished - Jan 1998

Abstract

The electrical properties of compressed nanocrystalline tin (IV) oxide were studied. It was observed that the room temperature electrical resistance of nanocrystalline SnO2 samples increased with increasing partial pressure of oxygen. In addition, when there is a sudden change in the oxygen partial pressure, a short pulse of spontaneous electromotive force of the millivolt order can be detected. This new finding has the potential application of leakage detection in vacuum systems or pressure vessels.