Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1864941 | Physics Letters A | 2008 | 4 Pages |
Abstract
In this Letter, p-type thermoelectric materials Ag0.208Sb0.275Te0.517 with enhanced power factor were prepared by high pressure and high temperature (HPHT) method. The samples are near single phase AgSbTe2 with a very small quantity of impurities including Ag2Te and Te. The concentration of impurities decreases with an increase of synthetic pressure. The synthetic pressure-dependent transport properties including electrical resistivity, Seebeck coefficient and power factor were studied at room temperature. We find the power factor of the sample prepared at the synthetic pressure of 2.1 GPa reaches a maximum value of 14.6 μW cm−1 K−2, which is about two times higher than that of the same sample prepared at normal pressure (6.9 μW cm−1 K−2).
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Taichao Su, Xiaopeng Jia, Hongan Ma, Lin Zhou, Jiangang Guo, Nan Dong,