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Enhancement of thermoelectric efficiency in type-VIII clathrate [Ba.sub.8][Ga.sub.16][Sn.sub.30] by Al substitution for Ga

Authors :
Shukang Deng
Saiga, Yuta
Suekuni, Koichiro
Takabatake, Toshiro
Source :
Journal of Applied Physics. Oct 1, 2010, Vol. 108 Issue 7, 073705-1-073705-4
Publication Year :
2010

Abstract

Single-crystalline samples of type-VIII clathrate [Ba.sub.8][Ga.sub.16-x][Al.sub.x][Sn.sub.30] are grown from Sn flux to analyze the structural and thermoelectric properties from 300 to 600 K. The Seebeck coefficients of all samples are largely negative and the large thermopower has coexisted with the metallic behavior in the electrical resistivity.

Details

Language :
English
ISSN :
00218979
Volume :
108
Issue :
7
Database :
Gale General OneFile
Journal :
Journal of Applied Physics
Publication Type :
Academic Journal
Accession number :
edsgcl.242864140