Preparation and thermoelectric transport properties of high-performance p-type Bi2Te3 with layered nanostructure

被引：332

作者：

Tang, Xinfeng ^{[1
]}

Xie, Wenjie

Li, Han

Zhao, Wenyu

Zhang, Qingjie

Niino, Masayuki

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synthesis & Proc, Wuhan 430070, Peoples R China

[2] Japan Aerosp Explorat Agcy, Adv Miss Res Ctr, Inst Space Technol & Aeronaut, Miyagi 9811525, Japan

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2425007

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High performance Bi2Te3 bulk materials with layered nanostructure have been prepared by combining melt spinning technique with spark plasma sintering, and their thermoelectric transport properties are investigated. The electrical conductivity increases greatly and the lattice thermal conductivity decreases significantly with the increase of the roller's linear speed. These lead to a great improvement in the thermoelectric figure of merit (ZT). The maximum ZT value of 1.35 is obtained at 300 K for the sample which is prepared by melt spinning with roller linear speed of 40 m/s. Compared with the zone melting sample, it increases by 73% at the same temperature.

引用

页数：3

共 26 条

[1] Nanostructuring and high thermoelectric efficiency in p-type Ag(Pb1-ySny)mSbTe2+m [J].