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Partially-Filled Skutterudites: Optimizing the Thermoelectric Properties

Published online by Cambridge University Press:  01 February 2011

G.S. Nolas,
M. Kaeser,
R.T. Littleton IV,
T.M. Tritt,
H. Sellinschegg,
D.C. Johnson and
E. Nelson
G.S. Nolas
Affiliation:
R&D Division, Marlow Industries, Inc., 10451 Vista Park Road, Dallas, Texas 75238
M. Kaeser
Affiliation:
Department of Physics, Clemson University, Clemson, South Carolina 29634
R.T. Littleton IV
Affiliation:
Department of Physics, Clemson University, Clemson, South Carolina 29634
T.M. Tritt
Affiliation:
Department of Physics, Clemson University, Clemson, South Carolina 29634
H. Sellinschegg
Affiliation:
Department of Chemistry, University of Oregon, Eugene, Oregon 97403
D.C. Johnson
Affiliation:
Department of Chemistry, University of Oregon, Eugene, Oregon 97403
E. Nelson
Affiliation:
US Army Research Laboratory, Adelphi, Maryland 20783
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Abstract

The skutterudite family of compounds continues to be of interest for thermoelectric applications due to the low thermal conductivity obtained when filling the voids with small diameter, large mass interstitials such as trivalent rare-earth ions. In the last few years there has been a substantial experimental and theoretical effort in attempting to understand the transport properties of these compounds in order to optimize their thermoelectric properties. One such approach involves partially-filling the voids in attempting to optimize the power factor while maintaining low thermal conductivity. In this report experimental research on skutterudites with the voids partially filled with heavy mass lanthanide and alkaline-earth ions is reported.

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References

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