THE EFFECT OF GRAIN-BOUNDARIES ON THE ELECTRICAL-PROPERTIES OF ZINC OXIDE-BASED VARISTOR

被引：17

作者：

BAI, SN ^{[1
]}

TSENG, TY ^{[1
]}

机构：

[1] NATL CHIAO TUNG UNIV,INST ELECTR,HSINCHU,TAIWAN

来源：

JOURNAL OF ELECTRONIC MATERIALS | 1992年 / 21卷 / 11期

关键词：

ZNO VARISTOR; GRAIN BOUNDARY; AC RESPONSE;

D O I：

10.1007/BF02665886

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The ac response of ZnO-based varistors was measured as a function of temperature and applied electric field. Conductivity-frequency measurements indicated that the grain boundaries of the ZnO varistors were amorphous. The device resistance was found to decrease as the temperature/applied field increased. This was attributed to deterioration of the insulating property of the grain boundaries due to generation of conduction carriers in the ZnO grains. As a large amount of these charge carriers passed through the grain boundaries, the ZnO varistors remarkably revealed a non-Debye characteristic that can be modeled by a capacitance to simulate the behavior of the grain boundaries

引用

页码：1073 / 1079

页数：7

共 30 条

[21] THEORY OF CONDUCTION IN ZNO VARISTORS [J].