Thermoelectric properties of n-type BayNixCo4-xSb12

被引：19

作者：

Tang, XF ^{[1
]}

Chen, LD

Goto, T

Hirai, T

Yuan, RZ

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[3] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

来源：

ACTA PHYSICA SINICA | 2002年 / 51卷 / 12期

关键词：

n-type skutterudite; filling; substitution; thermoelectric properties;

D O I：

10.7498/aps.51.2823

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Effects of Ba filling fraction and Ni content on the thermoelectric properties of n-type BagammaNixCo4-xSb12(x = 0-0.1, gamma = 0-0.4) were investigated. Thermal conductivity decreased with increasing Ba filling fractdion and temperature. When gamma was fixed at 0.3, the thermal conductivity decreased with increasing Ni content, and reached a minimum value at about x = 0.05. Lattice thermal conductivity decreased with increasing Ni content, monotonically (gammaless than or equal to0.1). Electron concentration and electrical conductivity increased with increasing Ba filling fraction and Ni content. Seebeck coefficient decreased with increasing Ba filling fraction and Ni content. The maximum ZT value of 1.2 was obtained at about 900 K for n-type Ba0.3Ni0.05Co3.95Sb12.

引用

页码：2823 / 2828

页数：6

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