Gas-Sensitive Electrical Conduction and its Mechanism in a Ag/Insulator System with Locally Discontinuous Structure
- 1 June 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (6R)
- https://doi.org/10.1143/jjap.26.818
Abstract
The gas-sensitive electrical conduction of a locally discontinuous Ag-thin-film/insulator element is described and its mechanism is discussed on the basis of experimental results. A thin-film element was found to show essentially the same gas-sensing phenomenon as had been previously reported in a conglomerate element, which is a dispersion of Ag ultrafine particles within a porous matrix. A filament model is proposed to explain the gas-sensing phenomenon in terms of the ionic movement of Ag as well as the structural stability of the Ag filaments.Keywords
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