A theoretical investigation on thermoelectric performance of ternary (Bi1-xSbx)(2)Te-3 compound

The electronic structure and thermoelectric properties of (Bi1-x Sb (x) )(2)Te-3 compound are investigated by using full-potential linearized augmented plane-wave method and semiclassical Boltzmann theory. The density of states and band structure are studied in detail. The transport coefficients are then calculated with the assumption of the constant relaxation time approximation. We investigated the thermoelectric properties at full range of Sb compositions from x = 0 to x = 1. By using the calculated thermoelectric properties and an averaged thermal conductivity, the figure of merit ZT is obtained. The theoretical investigations show a good agreement with the present experimental data.

Wu, ChengjieBeijing University of Posts and Telecommunications (BUPT) (author)
Li, YiluanBeijing University of Posts and Telecommunications (BUPT) (author)
Yu, Z. Y.Beijing University of Posts and Telecommunications (BUPT) (author)
Cao, H. W.Beijing University of Posts and Telecommunications (BUPT) (author)
Gao, T.Sichuan University (author)
Wang, Shu Min,1963Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)shumin (author)
Beijing University of Posts and Telecommunications (BUPT)Sichuan University (creator_code:org_t)

In:Journal of Materials Science: Springer Science and Business Media LLC48:14, s. 4999-50040022-24611573-4803

By the author/editor: Lu, P. F.; Wu, Chengjie; Li, Yiluan; Yu, Z. Y.; Cao, H. W.; Gao, T.; show more...; Wang, Shu Min, 1 ...; show less...

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