Paper Title:
Thermoelectric Properties of Undoped CoSb3
  Abstract

CoSb3 compounds were prepared by the arc melting and their thermoelectric properties were investigated at 300K-600K. Annealing effects were examined and they were correlated to phase transformation and homogenization. Undoped CoSb3 showed p-type conduction and intrinsic semiconducting behavior at all temperatures examined. Thermoelectric properties were changed with constituent phases because α-CoSb2, β-CoSb and Sb are metallic or semimetallic phases while δ-CoSb3 is semiconducting phase. Thermoelectric properties were remarkably improved by annealing in vacuum and they were closely related to phase transitions. Single phase δ-CoSb3 was successfully obtained by annealing at 400°C for 24hrs.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
917-920
DOI
10.4028/www.scientific.net/MSF.449-452.917
Citation
I. H. Kim, G.S. Choi, M.G. Han, J. S. Kim, J. I. Lee, S. C. Ur, T. W. Hong, Y. G. Lee, S. L. Ryu, "Thermoelectric Properties of Undoped CoSb3", Materials Science Forum, Vols. 449-452, pp. 917-920, 2004
Online since
March 2004
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$32.00
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