Enhanced thermoelectric figure of merit in p-type Ag-doped ZnSb nanostructured with Ag3Sb

Ding Bang Xiong, Norihiko L. Okamoto, Haruyuki Inui

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Zn-Sb systems are interesting as thermoelectric materials because the elements are relatively cheap and show low toxicity. In this work, a high thermoelectric figure of merit of 1.15 at 670 K is obtained in a p-type Ag-doped ZnSb nanostructured with in situ formed Ag3Sb because of its optimized carrier concentration and a significant reduction in lattice thermal conductivity. The samples also exhibit good thermal stability. The results here suggest that ZnSb is an efficient, stable and low-cost thermoelectric material and deserves more attention.

Original languageEnglish
Pages (from-to)397-400
Number of pages4
JournalScripta Materialia
Volume69
Issue number5
DOIs
Publication statusPublished - 2013 Sep 1
Externally publishedYes

Keywords

  • Nanoparticle
  • Thermal conductivity
  • Thermal stability
  • Thermoelectric
  • Zinc antimonide

ASJC Scopus subject areas

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

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