Highly efficient Ge-Rich Ge xPb 1-x Te thermoelectric alloys

Yaniv Gelbstein, Boaz Dado, Ohad Ben-Yehuda, Yatir Sadia, Zinovy Dashevsky, Moshe P. Dariel

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

The search for alternative energy sources is presently at the forefront of applied research. In this context, thermoelectricity for direct energy conversion from thermal to electrical energy plays an important role. This paper is concerned with the development of highly efficient p-type Ge xPb 1-x Te alloys for thermoelectric applications, using spark plasma sintering. The carrier concentration of GeTe was varied by alloying of PbTe and/or by Bi 2Te 3 doping. Very high ZT values up to ∼1.8 at 500°C were obtained by doping Pb 0.13Ge 0.87Te with 3 mol% Bi 2Te 3.

Original languageEnglish
Pages (from-to)2049-2052
Number of pages4
JournalJournal of Electronic Materials
Volume39
Issue number9
DOIs
StatePublished - 1 Sep 2010

Keywords

  • GeTe
  • PbTe
  • SPS
  • Thermoelectrics

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