Improvement of thermoelectric properties by dispersing Ag2Te grains in AgBiTe2 matrix:: Composition effects in (AgBiTe2)1-x(Ag2Te)x

被引：3
|
作者：
Sakakibara, T
Takigawa, Y
Kameyama, A
Kurosawa, K
机构：
[1] Aisin Seiki Co Ltd, Dev Dept 2, Kariya, Aichi 4488650, Japan
[2] Miyazaki Univ, Dept Elect & Elect Engn, Miyazaki 8892192, Japan
[3] Miyazaki Univ, Dept Mat Sci & Energy Engn, Miyazaki 8892192, Japan
[4] Osaka Electrocommun Univ, Dept Elect Engn, Neyagawa, Osaka 5728530, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2002年 / 110卷 / 04期
关键词：
Ag2Te; AgBiTe2; composite; thermoelectric; figure-of-merit;
D O I：
10.2109/jcersj.110.259
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We prepare composite materials that Ag2Te grains were dispersed in AgBiTe2 matrices with the compositions of (AgBiTe2)(1-x). (Ag2Te)(x). The textures depend on the composition. We measured electrical conductivity, thermal conductivity, Seebech coefficients and Hall coefficients as a function of the composition. Based on these data, we estimate Hall mobility and lattice thermal conductivity, and finally thermoelectric figure of merit. We show that the figure of merit is enhanced in the composite system by means of enhancement of phonon scattering at the grain boundaries.
引用
收藏
页码：259 / 263
页数：5
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