Paper Title:
Effect of TeI4 Content on Thermoelectric Properties of N-Type Bi2(Te,Se)3 Materials Prepared by Spark Plasma Sintering
  Abstract

The n-type Bi2(Te,Se)3 thermoelectric materials doped with different contents of TeI4 were fabricated through the spark plasma sintering (SPS) technique at 693K under a pressure of 60MPa. The sintered materials were rather dense and showed preferred grain orientation. Electrical conductivity (s), Seebeck coefficient (a), and thermal conductivity (k) were measured in the temperature range of 300-500K. The optimal figure of merit ZT (ZT=a2sT/k) of the sintered material in the direction perpendicular to the pressing direction showed a value of 0.75 for the sample containing 0.14wt% TeI4.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
393-396
DOI
10.4028/www.scientific.net/KEM.280-283.393
Citation
J. Jiang, L. D. Chen, S. Q. Bai, Q. Yao, Q. Wang, "Effect of TeI4 Content on Thermoelectric Properties of N-Type Bi2(Te,Se)3 Materials Prepared by Spark Plasma Sintering", Key Engineering Materials, Vols. 280-283, pp. 393-396, 2005
Online since
February 2007
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Price
$32.00
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