Thermoelectric properties of nanostructured (Pb1-mSnmTe)1-x (PbS)x with Pb and Sb precipitates

被引：0
|
作者：
Girard, Steven N. [1 ]
Sootsman, Joseph R. [1 ]
Lin, Chia-Her [2 ]
Androulakis, John [2 ]
Kanatzidis, Mercouri G. [1 ]
机构：
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA
来源：
THERMOELECTRIC POWER GENERATION | 2008年 / 1044卷
关键词：
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
We report the physical characterization and thermoelectric properties of (Pb0.95Sn0.05Te)(0.92)(PbS)(0.08) containing excess Pb and Sb prepared using the matrix encapsulation technique. Samples of (Pb0.95Sn0.05Te)(0.92)(PbS)(0.08): Pb 0.5 - 4 at. % rapidly quenched from the melt show microscale Pb inclusions that increase the thermal conductivity while slightly increasing the power factor, compared to (Pb0.95Sn0.05Te)(0.92)(PbS)(0.08). Samples of (Pb0.95Sn0.05Te)(0.92)(PbS)(0.08) : Pb 0.5%, Sb 2% prepared using the same technique show microscale Sb and Pb inclusions that upon heating cause rapid PbS and Sb segregation from the PbTe matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.
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页码：101 / +
页数：2
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