Investigation of the thermoelectric properties of the PbTe-SrTe system

Kanishka Biswas, Jiaqing He, Qichun Zhang, Guoyu Wang, Ctirad Uher, Vinayak P. Dravid, Mercouri G. Kanatzidis

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

Abstract

PbTe-based materials are promising for efficient heat energy to electricity conversion. We present studies of the thermoelectric properties of the PbTe-SrTe system. X-ray diffraction patterns reveal that all the samples crystallize in the rock salt structure without noticeable secondary phase. Na2Te doping of the PbTe-SrTe materials resulting in a positive sign Hall coefficient indicating p-type conduction. Lattice thermal conductivity is significantly decreased with the insertion of SrTe in PbTe lattice. The ZT ∼ 1.3 of these materials is derived from their very low thermal conductivities and reasonably high power factor at 800 K.

Original languageEnglish
Title of host publicationThermoelectric Materials 2010 - Growth, Properties, Novel Characterization Methods and Applications
Pages187-192
Number of pages6
Publication statusPublished - Dec 24 2010
Event2010 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 5 2010Apr 9 2010

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1267
ISSN (Print)0272-9172

Other

Other2010 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/5/104/9/10

ASJC Scopus subject areas

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

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  • Cite this

    Biswas, K., He, J., Zhang, Q., Wang, G., Uher, C., Dravid, V. P., & Kanatzidis, M. G. (2010). Investigation of the thermoelectric properties of the PbTe-SrTe system. In Thermoelectric Materials 2010 - Growth, Properties, Novel Characterization Methods and Applications (pp. 187-192). (Materials Research Society Symposium Proceedings; Vol. 1267).