Work

Enhancing high-temperature thermoelectric properties of PtAs2 by Rh doping

Year: 2013

Type: article

Abstract: The effects of Rh doping on the thermoelectric properties of Pt1−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 (S2/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.

Source: Applied Physics Letters

DOI: 10.1063/1.4819953

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

Institutions: Okayama University, Japan Science and Technology Agency, Hiroshima University

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Japan Society for the Promotion of Science

Award: Development of high-Tc iron-based superconductors using co-doping and study on the mechanism of the increase in Tc induced by this method