Rational design of p-type thermoelectric PbTe: temperature dependent sodium solubility

被引:55
作者
Yamini, Sima Aminorroaya [1 ]
Ikeda, Teruyuki [2 ]
Lalonde, Aaron [2 ]
Pei, Yanzhong [2 ]
Dou, Shi Xue [1 ]
Snyder, G. Jeffrey [2 ]
机构
[1] Univ Wollongong, AIIM, Wollongong, NSW 2519, Australia
[2] CALTECH, Pasadena, CA 91125 USA
基金
澳大利亚研究理事会;
关键词
DENSITY-OF-STATES; LEAD-TELLURIDE; FIGURE; MERIT; NANOSTRUCTURES; EFFICIENCY;
D O I
10.1039/c3ta11654a
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
We develop a solid understanding of the temperature-dependent solubility of sodium in p-type PbTe, the most efficient thermoelectric material. The maximum solubility of sodium telluride (NaTe) in PbTe is measured to be 1.4 +/- 0.3 at% and the heat of solution is evaluated as 26(-11)(+19) kJ mol(-1) that addresses fundamental issues regarding the formation of nano-precipitates.
引用
收藏
页码:8725 / 8730
页数:6
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