Low temperature preparation and transport properties of ternary Pb-Bi-Te alloy

被引：4

作者：

Deng, Y ^{[1
]}

Zhou, XS ^{[1
]}

Wei, GD ^{[1
]}

Liu, J ^{[1
]}

Wu, JB ^{[1
]}

Nan, CW ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2003年 / 350卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

semiconductors; chemical synthesis; electrical transport; thermoelectric;

D O I：

10.1016/S0925-8388(02)00961-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polycrystalline samples of the ternary compound Pb2Bi4Te5 were prepared by a solvothermal process based on the reaction between BiCl3, Pb(NO3)(2), Te, and KBH4 in N,N-dimethylformamide (DMF), and followed by a post heat-treatment of compacted pellets. The microstructures of samples were characterized using XRD and SEM. The thermoelectric properties were determined by measuring the electric conductivity and the Seebeck coefficient. These samples show a disordered layered structure, with a maximum Seebeck coefficient of 84 muV/K around 520 K. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：271 / 274

页数：4

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