Effect of grain size on the texture and thermoelectric properties of extruded Bi2Te2.7Se0.3 solid solutions

被引：7

作者：

Dzhafarov, EG ^{[1
]}

Alieva, TD ^{[1
]}

Abdinov, DS ^{[1
]}

机构：

[1] Azerbaijan Acad Sci, Inst Photoelect, Baku 370141, Azerbaijan

来源：

INORGANIC MATERIALS | 2001年 / 37卷 / 02期

关键词：

Particle Size; Inorganic Chemistry; Solid Solution; Average Particle; Structural Defect;

D O I：

10.1023/A:1004149325181

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bi2Te2.7Se0.3 samples were prepared by cold pressing and extrusion from powders with an average particle size of 50, 100, 160, 200, 315, 630, and 1000 mum. The texture and thermoelectric power of the samples were found to vary nonmonotonically with particle size. The thermoelectric power was shown to correlate with the extent of preferential orientation. The results are interpreted in terms of the structural defects produced by extrusion, which contribute to the scattering of phonons and electrons.

引用

页码：135 / 137

页数：3