Hydrothermal synthesis and thermoelectric transport properties of PbTe nanocubes

被引：0
|
作者：
Zhou, Jian [1 ]
Chen, Zhonglin [2 ]
Sun, Zhimei [1 ,3 ]
机构：
[1] School of Materials Science and Engineering, Beihang University, Beijing,100191, China
[2] Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen,361005, China
[3] International Research Center for Integrated Computational Materials Engineering, International Research Institute for Multidisciplinary Science, Beihang University, Beijing,100191, China
来源：
Materials Research Bulletin | 2015年 / 61卷
基金：
中国国家自然科学基金;
关键词：
Electrical conductivity - Energy filtering - Hydrothermal routes - Interface scattering - Nanocubes - Nanostructured bulk - Thermoelectric properties - Thermoelectric transport properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A facile hydrothermal route for the synthesis of PbTe nanocubes without any organic solvent and surfactant has been developed. The sizes of as-prepared nanocubes are around 80-100 nm. The thermoelectric properties of nanostructured bulk PbTe by hot-pressing were investigated. Large Seebeck coefficient, while low electrical conductivity have been found, which are attributed to the energy filtering effect. In addition, lower thermal conductivity is obtained due to strong phonon scattering at the grain boundaries. The minimum thermal conductivity of 0.621 W m-1 K-1 and the highest figure of merit ZT 0.78 at 450 K of the nanostructured bulk PbTe can be achieved. © 2014 Elsevier Ltd. All rights reserved.
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页码：404 / 408
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