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Metastable Barrier Voltage in ZnO Varistors

Published online by Cambridge University Press:  15 February 2011

Tapan K. Gupta ,
William G. Carlson  and
Barbara O. Hall
Tapan K. Gupta
Affiliation:
Westinghouse R&D Center, Pittsburgh, PA 15235
William G. Carlson
Affiliation:
Westinghouse R&D Center, Pittsburgh, PA 15235
Barbara O. Hall
Affiliation:
Westinghouse R&D Center, Pittsburgh, PA 15235
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Abstract

A reversible change in barrier voltage is observed in assintered ZnO varistors upon application and removal of the applied voltage. This is attributed to a metastable component in the grain boundary Schottky barriers. Varistors show improved stability when the metastable component is removed or fixed by heat treatment.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 5: Symposium B – Grain Boundaries in Semiconductors , 1981 , 393
Copyright
Copyright © Materials Research Society 1982

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References

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