Annealing Effect on the Thermoelectric Properties of Undoped CoSb3

Abstract:

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Binary skutterudite CoSb3 compounds were prepared by the arc melting and hot pressing processes and their thermoelectric properties were investigated at 300K-600K. Annealing effect was examined and it was correlated to phase transformation and homogenization. Thermoelectric properties of the arc-melted and hot-pressed CoSb3 were discussed and compared. Undoped CoSb3 prepared by the arc melting showed p-type conduction and metallic behavior at all temperatures examined. However, hot pressed specimens showed n-type conduction, possibly due to Sb evaporation. Thermoelectric properties were remarkably improved by annealing in vacuum and they were closely related to phase transitions.

Info:

Periodical:

Solid State Phenomena (Volume 118)

Edited by:

Jang Hyun Sung, Chan Gyu Lee, Yong Zoo You, Young Kook Lee and Jae Young Kim

Pages:

565-570

DOI:

10.4028/www.scientific.net/SSP.118.565

Citation:

I. H. Kim et al., "Annealing Effect on the Thermoelectric Properties of Undoped CoSb3", Solid State Phenomena, Vol. 118, pp. 565-570, 2006

Online since:

December 2006

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Price:

$35.00

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