Paper Title:

Thermoelectric Properties of Te Doped CoSb3 -4mol%Zn4 Sb3

Periodical Materials Science Forum (Volumes 510 - 511)
Main Theme Eco-Materials Processing & Design VII
Edited by Hyung Sun Kim, Yu Bao Li and Soo Wohn Lee
Pages 1110-1113
DOI 10.4028/www.scientific.net/MSF.510-511.1110
Citation K.W. Jang et al., 2006, Materials Science Forum, 510-511, 1110
Online since March, 2006
Authors K.W. Jang, Il Ho Kim, J.I. Lee, G.S. Choi
Keywords CoSb3, Te Doping, Thermoelectric Property
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Abstract

Te doping effect on the thermoelectric properties of solid solution was investigated. 2at% Te doping was found to be most effective to improve the dimensionless figure of merit, ZT, of pseudo-binary CoSb3-4mol%Zn4Sb3. Maximum ZT of 0.69 was obtained at 450K in CoSb3- 4mol%Zn4Sb3 doped with 2at% Te. Heavy doping of Te above 3at% caused thermal conductivity to increase very high because of the formation of metallic CoSb2 phases and thus did not improve ZT.