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.
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页数：5
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