Thermoelectric Properties of K 2 Bi 8 Se 13-x S x Solid Solutions

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0886-F08-02.1

Thermoelectric Properties of K2Bi8Se13-xSx Solid Solutions Theodora Kyratsi(1,2), Sangeeta Lal (3), Tim Hogan (3) and Mercouri G. Kanatzidis(1) (1)

Department of Chemistry, Michigan State University, East Lansing, MI 48824 Department of Mechanical & Manufacturing Engineering, School of Engineering, University of Cyprus, Nicosia, Cyprus (3) Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824. (2)

Abstract Derivatives of β-K2Bi8Se13 are an interesting series of materials for thermoelectric investigations due to their very low thermal conductivity and highly anisotropic electrical properties. Up to now substitutions on the Bi and alkali metal sites have been studied in order to tune the thermoelectric properties. In this work, the thermoelectric properties of the sulfursubstituted K2Bi8Se13-xSx (0

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