Frequency-dependent electrical properties in the system SnO2-TiO2

被引：31

作者：

Komornicki, S

Radecka, M

Rekas, M

机构：

[1] Univ Min & Met, Fac Mat Sci & Ceram, PL-30059 Krakow, Poland

[2] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2001年 / 12卷 / 01期

关键词：

D O I：

10.1023/A:1011208310147

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 a.c. impedance response of polycrystalline ceramics SnxTi1-xO2 was studied in the air in the temperature range 298-1073 K. The impedance spectra were analyzed in terms of two proposed equivalent circuits involving both resistor and non-Debye constant phase element (CPE). The presence of CPE elements may be interpreted by diffusion phenomena. The results indicate a negligible contribution of grain boundary resistance to the total resistivity of the studied materials. The determined activation energy of the bulk conductivity of TiO2 was compared with literature data. (C) 2001 Kluwer Academic Publishers.

引用

页码：11 / 16

页数：6

共 27 条

[1] MECHANISMS FOR HYDROGEN DIFFUSION IN TIO2 [J].