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Investigation of the thermoelectric properties of the PbTe-SrTe system

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

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

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. © 2010 Materials Research Society.
Original languageEnglish
Title of host publicationThermoelectric Materials 2010 - Growth, Properties, Novel Characterization Methods and Applications
PublisherMaterials Research Society
Pages187-192
ISBN (Print)9781605112442
DOIs
Publication statusPublished - Apr 2010
Externally publishedYes
Event2010 Materials Research Society Spring Meeting & Exhibit (2010 MRS Spring Meeting & Exhibit) - San Francisco, United States
Duration: 5 Apr 20109 Apr 2010
https://www.mrs.org/spring2010

Publication series

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

Conference

Conference2010 Materials Research Society Spring Meeting & Exhibit (2010 MRS Spring Meeting & Exhibit)
PlaceUnited States
CitySan Francisco
Period5/04/109/04/10
Internet address

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