Thermoelectric Properties of Ag1-xPbmSbTe2+m Compounds

Yong Gao Yan; Xin Feng Tang; Hai Jun Liu; Ling Ling Yin; Qing Jie Zhang

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

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Thermoelectric Properties of Ag_1-xPb_mSbTe_2+m Compounds

Abstract:

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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Key Engineering Materials (Volumes 336-338)

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854-856

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https://doi.org/10.4028/www.scientific.net/KEM.336-338.854

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Online since:

April 2007

Authors:

Yong Gao Yan, Xin Feng Tang, Hai Jun Liu, Ling Ling Yin, Qing Jie Zhang

Keywords:

AgPb_mSbTe_2+m, Preparation, Thermoelectric Property

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