Transport properties of heavily doped N-type CoSb3

被引：33

作者：

Nagamoto, Y ^{[1
]}

Tanaka, K ^{[1
]}

Koyanagi, T ^{[1
]}

机构：

[1] Yamaguchi Univ, Dept Elect & Elect Engn, Ube, Yamaguchi 7558611, Japan

来源：

XVII INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT 98 | 1998年

关键词：

D O I：

10.1109/ICT.1998.740378

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The transport properties of heavily Te-doped n-type CoSb3 polycrystalline samples have been studied. We performed measurements of the electrical conductivity, the Seebeck coefficient and the Hall coefficient. The Seebeck coefficient was compared with the calculated results. The observed temperature dependence of the Seebeck coefficient was in good agreement with the calculated result assuming two conduction bands. The values of the second band effective mass and the ratio of the carrier mobilities in their bands were estimated. From this result, it was found that the second band played an important role of the large Seebeck coefficient and therefore the large figure of merit.

引用

页码：302 / 305

页数：4