文献类型：期刊文献

英文题名：High thermoelectric properties of n-type Cd-doped PbTe prepared by melt spinning

作者：Ding, Guangchao[1];Si, Jianxiao[1];Yang, Shidan[1];Wang, GuWei[1];Wu, Haifei[2]

机构：[1]Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Peoples R China;[2]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China

年份：2016

卷号：122

起止页码：1

外文期刊名：SCRIPTA MATERIALIA

收录：SCI-EXPANDED(收录号：WOS:000378959300001)、、EI(收录号：20162202451273)、Scopus(收录号：2-s2.0-84970956382)、WOS

基金：This work was sponsored by the National Natural Science Foundation of China (Grant Nos. 51302248 and 51202149), Zhejiang Provincial Science and Technology Key Innovation Team (No. 2011R50012) and Zhejiang Provincial Key Laboratory (No. 2013E10022), Zhejiang Provincial Natural Science Foundation of China (Grant No. Y1110563).

语种：英文

外文关键词：Melt spinning; Thermoelectric properties; Nanostructure; Rapid solidification

外文摘要：We investigated the thermoelectric properties of n-type Cd-doped PbTeCdx alloys (x = 0, 0.01, 0.02, 0.04) prepared by melt spinning combined with rapid induction hot pressing. Transmission electron microscopy revealed rhombo-cubo-octahedron shape precipitates (similar to 5 nm) in PbTeCd0.02 sample. The two-dimensional electron gas that existed on the interface of precipitates resulted in an increase in power factor. The peak figure of merit reached 1.5 at 723 K as well as a high average figure of merit of 0.93 in the temperature range from 298 to 673 K. (C) 2016 Elsevier Ltd. All rights reserved.