High-temperature thermoelectric properties of n-type BayNixCo4-xSb12

被引：44

作者：

Tang, XF ^{[1
]}

Zhang, LM

Yuan, RZ

Chen, LD

Goto, T

Hirai, T

Dyck, JS

Chen, W

Uher, C

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth, 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

[4] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2001年 / 16卷 / 12期

关键词：

D O I：

10.1557/JMR.2001.0460

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of Ba filling, fraction and Ni content on the thermoelectric properties of n-type BayNixCo4-xSb12 (x = 0-0.1, y = 0,-0.4) were investigated at temperature range of 300 to 900 K. Thermal conductivity decreased with increasing Ba filling fraction and temperature. When y was fixed at 0.3, 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, monotonously (y less than or equal to 0.1). Electron concentration and electrical conductivity increased with increasing Ba filling fraction and Ni content. Seebeck coefficient increased with increasing temperature and decreased with increasing Ba filling fraction and Ni content. The maximum ZT value of 1.25 was obtained at about 900 K for n-type Ba0.3Ni0.05Co3.95Sb12.

引用

页码：3343 / 3346

页数：4

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