Thermoelectric Properties of Ag1-xPbmSbTe2+m Compounds

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Ag1-xPbmSbTe2+m (m = 6, 10, 18; x = 0, 0.5, 0.75) compounds were prepared by melting-spark plasma sintering (SPS) process. The effects of m and x on the thermoelectric properties of the compounds were investigated. The results indicate that all samples are n-type conduction. For Ag1-xPb18SbTe20 (x = 0, 0.5, 0.75), the electrical conductivity decreases, whereas Seebeck coefficient increases, with increasing Ag concentration. For AgPbmSbTe2+m (m = 6, 10, 18), as m increases, the Seebeck coefficient slightly decreases and the electrical conductivity increases first, with a maximum at m =10, and then decreases. The thermal conductivity increases with increasing m.

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Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

854-856

DOI:

10.4028/www.scientific.net/KEM.336-338.854

Citation:

Y. G. Yan et al., "Thermoelectric Properties of Ag1-xPbmSbTe2+m Compounds", Key Engineering Materials, Vols. 336-338, pp. 854-856, 2007

Online since:

April 2007

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$35.00

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