ZnO varistor, rare-earth (RE), doping
Rare-earth (RE) doping can greatly enhance the voltage gradient of ZnO-based varistors, and their nonlinear coefficient, leakage current, energy absorption capability, through-current capability and residual voltage can also be improved to certain extent. In this review, the progress on RE-doped ZnO-based varistor materials in recent years was summarized. The mechanism of RE doping on the electrical performance of ZnO varistors was analyzed. The issues in exploring new ZnO-based varistor materials by RE doping were indicated, and the development trends in this area were proposed.
Tsinghua University Press
Feng JIANG, Zhijian PENG, Yanxu ZANG et al. Progress on rare-earth doped ZnO-based varistor materials. Journal of Advanced Ceramics 2013, 2(3): 201-212.