A theoretical investigation on thermoelectric performance of ternary (Bi1-xSbx)(2)Te-3 compound
Artikel i vetenskaplig tidskrift, 2013

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.

Författare

P. F. Lu

Beijing University of Posts and Telecommunications (BUPT)

Chengjie Wu

Beijing University of Posts and Telecommunications (BUPT)

Yiluan Li

Beijing University of Posts and Telecommunications (BUPT)

Z. Y. Yu

Beijing University of Posts and Telecommunications (BUPT)

H. W. Cao

Beijing University of Posts and Telecommunications (BUPT)

T. Gao

Sichuan University

Shu Min Wang

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Journal of Materials Science

0022-2461 (ISSN) 1573-4803 (eISSN)

Vol. 48 14 4999-5004

Ämneskategorier

Annan elektroteknik och elektronik

DOI

10.1007/s10853-013-7286-9