High-performance varistors simply by hot-dipping zinc oxide thin films in Pr₆O₁₁: Influence of temperature.

ABSTRACT: High-performance ZnO-Pr₆O₁₁ thin-film varistors were fabricated simply by hot-dipping oxygen-deficient zinc oxide thin films in Pr₆O₁₁ powder. The films had a composition of ZnO_0.81 and a thickness of about 200 nm, which were deposited by radio frequency magnetron sputtering a sintered zinc oxide ceramic target. Special attention was paid on the temperature dependence of the varistors. In 50 min with hot-dipping temperature increased from 300-700 °C, the nonlinear coefficient (α) of the varistors increased, but with higher temperature it decreased again. Correspondingly, the leakage current (I_L) decreased first and then increased, owing mainly to the formation and destroying of complete zinc oxide/Pr₆O₁₁

SUBMITTER: Wang Y 

PROVIDER: S-EPMC5290466 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature