A theoretical investigation on thermoelectric performance of ternary (Bi1-xSbx)2Te3 compound

被引：3
|
作者：
Lu, Pengfei [1 ,2 ]
Wu, Chengjie [1 ]
Li, Yiluan [1 ]
Yu, Zhongyuan [1 ]
Cao, Huawei [1 ]
Gao, Tao [3 ]
Wang, Shumin [4 ,5 ]
机构：
[1] Beijing Univ Posts & Telecommun, Minist Educ, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, Beijing 100876, Peoples R China
[3] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China
[5] Chalmers Univ Technol, Dept Microtechnol & Nanosci, Photon Lab, S-41296 Gothenburg, Sweden
来源：
JOURNAL OF MATERIALS SCIENCE | 2013年 / 48卷 / 14期
基金：
中国国家自然科学基金;
关键词：
ALLOYS;
D O I：
10.1007/s10853-013-7286-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：4999 / 5004
页数：6
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