Enhancing high-temperature thermoelectric properties of PtAs2 by Rh doping

Kazutaka Kudo, Seiya Nakano, Tasuku Mizukami, Toshiro Takabatake, Minoru Nohara

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The effects of Rh doping on the thermoelectric properties of Pt 1-xRhxAs2 (x = 0, 0.005, and 0.01) with pyrite structure were studied by conducting measurements of electrical resistivity ρ, Seebeck coefficient S, and thermal conductivity κ. The sample with x = 0.005 exhibited large S and low ρ, resulting in a maximum power factor (S 2 / ρ) of 65 μW/cmK2 at 440 K. The peculiarly shaped "corrugated flat band" predicted for PtSb2 might explain the enhanced thermoelectric properties of doped PtAs2.

Original languageEnglish
Article number092107
JournalApplied Physics Letters
Volume103
Issue number9
DOIs
Publication statusPublished - Aug 26 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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