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Thermoelectric Properties of SmSl−xAsx Alloys

Published online by Cambridge University Press:  25 February 2011

L. R. Danielson ,
M. N. Alexander ,
R. A. Lockwood  and
C. Wood
L. R. Danielson
Affiliation:
Thermo Electron Corporation, Waltham, MA 02254
M. N. Alexander
Affiliation:
Thermo Electron Corporation, Waltham, MA 02254
R. A. Lockwood
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
C. Wood
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
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Abstract

The electrical resistivities and the Seebeck coefficients of SmS1−xAsx alloys (0 ≤ x ≤ 1) have been measured between room temperature and 1273 K as part of a continuing search for high temperature materials having a high thermoelectric figure of merit and suitable for space power applications. SmS is an n-type semiconductor with an energy gap measured to be 0.16 eV. SmAs and SmS0.2As0.8 are itinerant electron conductors. Hysteresis between high and low resistivity states has been observed in our SmS0.9As0.1 and SmS0.8As0.2 samples. Alloys with x ≤ 0.05 appear to be the most promising high temperature thermoelectric materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 97: Symposium I – Novel Refractory Semiconductors , 1987 , 353
Copyright
Copyright © Materials Research Society 1987

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References

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