High Thermoelectric Performance in Non-Toxic Earth-Abundant Copper Sulfide

被引:727
作者
He, Ying [1 ]
Day, Tristan [2 ]
Zhang, Tiansong [1 ]
Liu, Huili [1 ]
Shi, Xun [1 ]
Chen, Lidong [1 ]
Snyder, G. Jeffrey [2 ]
机构
[1] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
[2] CALTECH, Dept Mat Sci, Pasadena, CA 91125 USA
基金
中国国家自然科学基金;
关键词
THERMAL-CONDUCTIVITY; BULK THERMOELECTRICS; ELECTRON; CRYSTALS; FIGURE; MERIT; HEAT; CU2S;
D O I
10.1002/adma.201400515
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new type of high performance thermoelectric material Cu2-xS composed of non-toxic and earth-abundant elements Cu and S is reported. Cu 2-xS surprisingly has lower thermal conductivity and more strikingly reduced specific heat compared to the heavier Cu2Se, leading to an increased zT to 1.7. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:3974 / 3978
页数:5
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