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

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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.

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Periodical:

Materials Science Forum (Volumes 510-511)

Pages:

1110-1113

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.510-511.1110

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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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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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