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

Joseph R. Sootsman, Huijun Kong, Ctirad Uher, Jonathan James D'Angelo, Chun I. Wu, Timothy P. Hogan, Thierry Caillat, Mercouri G. Kanatzidis

Research output: Contribution to journalArticle

181 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)8618-8622
Number of pages5
JournalAngewandte Chemie - International Edition
Volume47
Issue number45
DOIs
Publication statusPublished - Oct 27 2008

Keywords

  • Composite materials
  • Nanostructures
  • Semiconductors
  • Thermoelectric materials

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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