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Searching for New Thermoelectrics in Chemically and Structurally Complex Bismuth Chalcogenides

Published online by Cambridge University Press:  15 February 2011

Duck Young Chung,
Tim Hogan,
Jon Schindler,
Lykourgos Iordanidis,
Paul Brazis,
Carl R. Kannewurf,
Baoxing Chen,
Ctirad Uher and
Mercouri G. Kanatzidis
Duck Young Chung
Affiliation:
Department of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824.
Tim Hogan
Affiliation:
Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL 60208
Jon Schindler
Affiliation:
Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL 60208
Lykourgos Iordanidis
Affiliation:
Department of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824.
Paul Brazis
Affiliation:
Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL 60208
Carl R. Kannewurf
Affiliation:
Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL 60208
Baoxing Chen
Affiliation:
Department of Physics, University of Michigan, Ann Arbor, MI 48109
Ctirad Uher
Affiliation:
Department of Physics, University of Michigan, Ann Arbor, MI 48109
Mercouri G. Kanatzidis
Affiliation:
Department of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing, MI 48824.
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Abstract

A solid state chemistry synthetic approach towards identifying new materials with potentially superior thermoelectric properties is presented. Materials with complex compositions and structures also have complex electronic structures which may give rise to high thermoelectric powers and at the same time possess low thermal conductivities. The structures and thermoelectric properties of several new promising compounds with K-Bi-Se, K-Bi-S, Ba-Bi- Te, Cs-Bi-Te, and Rb-Bi-Te are reported.

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