Raising thermoelectric performance of n-type SnSe via Br doping and Pb alloying

Cheng Chang; Qing Tan; Yanling Pei; Yu Xiao; Xiao Zhang; Yue-Xing Chen; Lei Zheng; Shengkai Gong; Jing-Feng Li; Jiaqing He; Li-Dong Zhao

doi:10.1039/C6RA21884A

Raising thermoelectric performance of n-type SnSe via Br doping and Pb alloying†

Cheng Chang,^a Qing Tan,^b Yanling Pei,^a Yu Xiao,^a Xiao Zhang,^a Yue-Xing Chen,^c Lei Zheng,^a Shengkai Gong,^a Jing-Feng Li,

^b Jiaqing He^c and Li-Dong Zhao*^a

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* Corresponding authors

^a School of Materials Science and Engineering, Beihang University, Beijing 100191, China
E-mail: zhaolidong@buaa.edu.cn

^b School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

^c Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China

Abstract

High ZT value of ∼1.2 at 773 K was achieved in n-type polycrystalline SnSe. The high thermoelectric performance derives from the low thermal conductivity of SnSe and enhanced electrical conductivity induced by Br doping and Pb alloying.

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Raising thermoelectric performance of n-type SnSe via Br doping and Pb alloying†

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Raising thermoelectric performance of n-type SnSe via Br doping and Pb alloying

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