Investigation of solid-state immiscibility and thermoelectric properties of the system PbTe - PbS

Steven N. Girard, Jiaqing He, Vinayak P Dravid, Mercouri Kanatzidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

We have shown that (Pb1-mSnmTe)1-x(PbS) x where m = 0.05 and x = 0.08 exhibits a ZT of ∼1.4 at 700 K. This system incorporates two thermoelectric systems: PbSxTe 1-x and Pb1-xSnxTe. Here we report the thermoelectric properties of PbSxTe1-x (x = 0.08 and 0.30). The material Pb50.08Te0.92 exhibits nucleation and growth of PbS precipitates, while PbS0.30Te0.70 exhibits PbS precipitation through spinodal decomposition phase separation. We report the thermoelectric properties of this system as a result of the differing precipitation phenomena.

Original languageEnglish (US)
Title of host publicationMaterials and Devices for Thermal-to-Electric Energy Conversion
Pages59-64
Number of pages6
Volume1166
StatePublished - Dec 1 2009
Event2009 MRS Spring Meeting: Materials and Devices for Thermal-to-Electric Energy Conversion - San Francisco, CA, United States
Duration: Apr 13 2009Apr 17 2009

Other

Other2009 MRS Spring Meeting: Materials and Devices for Thermal-to-Electric Energy Conversion
CountryUnited States
CitySan Francisco, CA
Period4/13/094/17/09

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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