Thermoelectric properties of Nb3SbxTe7-xcompounds

Sidney Wang, G. Jeff Snyder, Thierry Caillat

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

2 Scopus citations

Abstract

Niobium antimony telluride, Nb3SbxTe7-x was synthesized and tested for thermoelectric properties in the Thermo electrics group at the Jet Propulsion Laboratory. The forty atoms per unit cell of Nb3Sb2Te5 and its varied mixture of atoms yield a complicated structure, suggesting that Nb3Sb2Te5 and related compounds may exhibit low thermal conductivity and hence a higher ZT value. Nb3SbxTe7-x compounds were synthesized and subsequently analyzed for their Seebeck voltage, heat conduction, and electrical resistivity. Results indicate that Nb3Sb2Tex is a heavily doped semiconductor whose thermoelectric properties are compromised by compensating n- Type and p-type carriers. Attempts to dope in favor of either carrier by varying the Sb:Te ratio yielded samples containing secondaiy metallic phases that dominated the transport properties of the resulting compounds.

Original languageEnglish (US)
Title of host publicationProceedings ICT 2002
Subtitle of host publication21st International Conference on Thermoelectrics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages170-172
Number of pages3
ISBN (Electronic)0780376838
DOIs
StatePublished - Jan 1 2002
Event21st International Conference on Thermoelectrics, ICT 2002 - Long Beach, United States
Duration: Aug 25 2002Aug 29 2002

Publication series

NameInternational Conference on Thermoelectrics, ICT, Proceedings
Volume2002-January

Other

Other21st International Conference on Thermoelectrics, ICT 2002
CountryUnited States
CityLong Beach
Period8/25/028/29/02

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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