Large enhancements in the thermoelectric power factor of bulk PbTe at high temperature by synergistic nanostructuring

  • Sootsman J
  • Kong H
  • Uher C
 et al. 
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Abstract

(Graph Presented) Co-nanostructuring of PbTe with two kinds of metallic nanoparticles (Pb and Sb) can significantly increase its power factor at high temperatures (up to 87% at 700 K; see picture, ZT = figure of merit). The electrical conductivity is dramatically increased at high temperatures without degrading the thermopower. This emergent synergy results only when both Pb and Sb nanocrystals are present. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

Author-supplied keywords

  • Composite materials
  • Nanostructures
  • Semiconductors
  • Thermoelectric materials

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Authors

  • Joseph R. Sootsman

  • Huijun Kong

  • Ctirad Uher

  • Jonathan James D'Angelo

  • Chun I. Wu

  • Timothy P. Hogan

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