Synthesis and thermoelectric properties of YbSb2Te4

Amado S. Guloy, Franck Gascoin*, Audrey Chamoire, Jean Claude Tedenac, G. Jeffrey Snyder

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The study of the ternary phase diagram Yb-Sb-Te has led to the synthesis of YbSb2Te4 as a pure phase by way of high energy ball milling followed by annealing, whereas typical high temperature powder metallurgy leads to multiphase sample with impurities of the very stable YbTe. The Hall mobility, Seebeck coefficient, electrical resistivity and thermal conductivity of the layered compound YbSb2Te4 were measured in the range of 20-550 °C. The thermoelectric figure of merit peaks at 525 K and reaches 0.5. Of particular interest is the very low lattice thermal conductivity (as low as a glass) which makes YbSb2Te 4 and related compounds promising thermoelectric materials.

Original languageEnglish (US)
Pages (from-to)265-267
Number of pages3
JournalPhysica Status Solidi - Rapid Research Letters
Volume1
Issue number6
DOIs
StatePublished - Dec 1 2007

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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