Solid-state self-assembly of nanostructured oxide as a candidate high-performance thermoelectric material

Atsuko Kosuga, Ken Kurosaki, Kunio Yubuta, Anek Charoenphakdee, Shinsuke Yamanaka, Ryoji Funahashi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have focused on the recently reported nanostructured bulk ZnMn 2-x Ga x O 4 to evaluate whether this type of nanostructured oxide can effectively reduce thermal conductivity. Firstly, powdered samples of ZnMn 2-x Ga x O 4 (x = 0 to 2) were prepared and the effect of heat treatment on the obtained phases was examined. Secondly, we have picked out the composition of ZnMnGaO 4, in which two distinct types of rectangular nanorods with different compositions spontaneously interlace to form a cross-sectional checkerboard pattern. To confirm the effect of nanostructure on thermal transport properties, the room-temperature thermal conductivity of this nanostructured oxide was evaluated.

Original languageEnglish
Pages (from-to)1303-1308
Number of pages6
JournalJournal of Electronic Materials
Volume38
Issue number7
DOIs
Publication statusPublished - 2009 Jul 1

Keywords

  • Nanostructured oxide
  • Thermal conductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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