Optimization of thermoelectric properties in n-type SnSe doped with BiCl3

被引：120

作者：

Wang, Xue ^{[1
,2
]}

Xu, Jingtao ^{[2
]}

Liu, Guoqiang ^{[2
]}

Fu, Yajie ^{[2
]}

Liu, Zhu ^{[2
]}

Tan, Xiaojian ^{[2
]}

Shao, Hezhu ^{[2
]}

Jiang, Haochuan ^{[2
]}

Tan, Tianya ^{[1
]}

Jiang, Jun ^{[2
]}

机构：

[1] Liaoning Univ, Dept Phys, Shenyang 110036, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 08期

关键词：

PERFORMANCE BULK THERMOELECTRICS; FIGURE; MERIT;

D O I：

10.1063/1.4942890

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

N-type SnSe compound has been synthesized through melting with spark plasma sintering. By doping BiCl3, the carrier concentration of SnSe is significantly increased, leading to a large enhancement of electrical conductivity. Meanwhile, the SnSe0.95-BiCl3 samples also exhibit higher Seebeck coefficient and lower lattice thermal conductivity, compared with polycrystalline SnSe. Consequently, a high power factor of similar to 5 mu W cm(-1) K-2 and a ZT of 0.7 have been achieved at 793 K. The synergistic roles of BiCl3 doping in SnSe provide many opportunities in the optimization of n-type SnSe materials. (C) 2016 AIP Publishing LLC.

引用

页数：5

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