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Thermoelectric Properties of Doped Iron Disilicide

Published online by Cambridge University Press:  01 February 2011

Jun-ichi Tani  and
Hiroyasu Kido
Jun-ichi Tani
Affiliation:
Department of Inorganic Chemistry, Osaka Municipal Technical Research Institute, 1–6–50 Morinomiya, Joto-ku, Osaka 536–8553, Japan, [email protected]
Hiroyasu Kido
Affiliation:
Department of Inorganic Chemistry, Osaka Municipal Technical Research Institute, 1–6–50 Morinomiya, Joto-ku, Osaka 536–8553, Japan, [email protected]
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Abstract

In order to investigate the thermoelectric properties of Re-doped β-FeSi2 (Fe1-xRexSi2), Ir-doped β-FeSi2 (Fe1-xIrxSi2), and Pt-doped β-FeSi2 (Fe1-xPtxSi2), the electrical resistivity, the Seebeck coefficient, and the thermal conductivity of these samples have been measured in the temperature range between 300 and 1150 K. Fe1-xRexSi2 is p-type, while Fe1-xIrxSi2 and Fe1-xPt xSi2 are n-type over the measured temperature range. The solubility limits of dopant are estimated to be 0.2at% for Fe1-xRexSi2, 0.5at% for Fe1-xIrxSi2, and 1.9at% for Fe1-xPtxSi2. A maximum ZT value of 0.14 was obtained for Fe1-xPt xSi2 (x=0.03) at the temperature 847 K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 626: Symposium Z – Thermoelectric Materials 2000 - The Next Generation Materials for Small-Scale Refrigeration and Power Generation Applications , 2000 , Z8.1
Copyright
Copyright © Materials Research Society 2000

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References

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