Effect of Na-diffusion on the electrical properties of SrTiO3

被引：13

作者：

Kim, SH ^{[1
]}

Byun, JD

Won-Park

Kim, Y

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136701, South Korea

[2] Univ Toronto, Dept Chem Engn, Toronto, ON, Canada

[3] Korea Inst Sci & Technol, Div Ceram, Seoul 130650, South Korea

来源：

JOURNAL OF MATERIALS SCIENCE | 1999年 / 34卷 / 13期

关键词：

D O I：

10.1023/A:1004684512778

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Grain boundary characteristics of Na-diffused SrTiO3 were investigated. It was observed that Na ions are segregated in grain boundaries by secondary ion mass spectroscopy analysis. Using I-V characteristics and C-V measurement, the non-linearity coefficient and the potential barrier height were found to be 15.6, 0.82 eV, respectively. The I-V characteristics, complex plane analysis, and de voltage step technique were performed to study the electrical properties of a single grain boundary. From the results of complex plane analysis, the deep electronic level was varied from 0.10 to 0.31 eV, which can be explained by the substitution of Na ions for Sr ions. (C) 1999 Kluwer Academic Publishers.

引用

页码：3057 / 3061

页数：5

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