Influence of various donors on nonlinear I-V characteristics of tin dioxide ceramics

被引:60
作者
Dhage, SR [1 ]
Ravi, V [1 ]
机构
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
关键词
D O I
10.1063/1.1631390
中图分类号
O59 [应用物理学];
学科分类号
摘要
The influence of different donors such as Nb, Ta, Sb, and V on nonlinear current (I)-voltage (V) relations of tin dioxide ceramics is investigated. The room-temperature resistivity (rho), nonlinear coefficient (alpha), breakdown electric field (E-B) and barrier height (Phi(B)) are calculated as a function of donor content. The present system contains fewer additives as compared to ZnO varistor wherein small quantities of variety of metal oxides are added. Optimum doping of antimony-doped samples shows promising behavior for low-voltage varistor application. (C) 2003 American Institute of Physics.
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页码:4539 / 4541
页数:3
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