Thermoelectric properties of nanostructured (Pb1·mSn mTe)1-x (PbS)x with Pb and Sb precipitates.

Steven N. Girard, Joseph R. Sootsman, Chia Her Lin, John Androulakis, Mercouri G. Kanatzidis

研究成果: 雜誌貢獻會議論文同行評審


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 (Pb0.95Sn 0.05Te)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 Pb Te matrix. This behavior significantly alters the microstructure and degrades the transport properties of the material.

頁(從 - 到)101-106
期刊Materials Research Society Symposium Proceedings
出版狀態已發佈 - 2008
事件Thermoelectric Power Generation - Boston, MA, 美国
持續時間: 2007 11月 262007 11月 29

ASJC Scopus subject areas

  • 一般材料科學
  • 凝聚態物理學
  • 材料力學
  • 機械工業


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