Co3M2S2 (M = Sn, In) shandites as tellurium-free thermoelectrics

被引:30
作者
Corps, Jack [1 ]
Vaqueiro, Paz
Powell, Anthony V.
机构
[1] Heriot Watt Univ, Inst Chem Sci, Edinburgh EH14 4AS, Midlothian, Scotland
关键词
HALF-ANTIPEROVSKITES; PERFORMANCE; FIGURE; TEMPERATURE; ENHANCEMENT; EFFICIENCY; BICUSEO; MERIT; PBTE; PBS;
D O I
10.1039/c3ta11264k
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Chemical substitution in Co3Sn2-xInxS2 (0 <= x <= 2) enables tuning of the Fermi level within narrow bands of Co d-states. This results in a compositionally induced double metal-semiconductor-metal transition and manipulation of the thermoelectric power factor. The maximum power factor (14 mu W cm(-1) K-2) is found for x = 0.85, which corresponds to ZT approximate to 0.2 at 300 K.
引用
收藏
页码:6553 / 6557
页数:5
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