Capacitance-vs-voltage characteristics of ZnO varistors
- 1 June 1979
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (6) , 4475-4476
- https://doi.org/10.1063/1.326411
Abstract
Studies were made on the capacitance‐vs‐voltage characteristics of ZnO varistors which contain rare‐earth metal oxides and cobalt oxide. On the basis of the symmetrical Schottky‐barrier model of the grain‐boundary region, the barrier height φ and donor concentration Nd of ZnO grains were obtained by the modified 1/C2‐V plot reduced from observed C‐V relations. φ and Nd were obtained as 0.72 V and 1.6×1018 cm−3, respectively, for a ZnO‐Pr6O11‐Co3O4 system and 1.00 V and 0.76×1018 cm−3, respectively, for a ZnO‐Pr6O11‐La2O3‐Co3O4 system. These results support the validity of this model and the treatment.This publication has 13 references indexed in Scilit:
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