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Transport Behavior and Thermal Conductivity Reduction in the Composite System PbTe-Pb-Sb

  • Joseph Sootsman (a1), Huijun Kong (a2), Ctirad Uher (a3), Adam Downey (a4), Jonathan James D'Angelo (a5), Chun-I Wu (a6), Timothy Hogan (a7), Thierry Caillat (a8) and Mercouri Kanatzidis (a9)...

Abstract

We report the synthesis of nanostructured composite PbTe with excess Pb and Sb metal inclusions. Scanning and transmission electron microscopy reveal these inclusions in both the nano- and macroscales. The electrical conductivity and Seebeck coefficient dependence on temperature show unusual trends which depend on the inclusion Pb/Sb ratio. Several ratios showed marked enhancements in power factor at 700 K. The thermal conductivity of these composites is reported.

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References

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Keywords

Transport Behavior and Thermal Conductivity Reduction in the Composite System PbTe-Pb-Sb

  • Joseph Sootsman (a1), Huijun Kong (a2), Ctirad Uher (a3), Adam Downey (a4), Jonathan James D'Angelo (a5), Chun-I Wu (a6), Timothy Hogan (a7), Thierry Caillat (a8) and Mercouri Kanatzidis (a9)...

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