Thermoelectric properties of K2Bi8-xSbxSe13 solid solutions and Se doping
Dyck, J. S.
Chung, D. Y.
Paraskevopoulos, K. M.
Kanatzidis, M. G.
PublisherAffiliation: Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States
Correspondence Address: Kyratsi, T.
Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States
SourceMaterials Research Society Symposium - Proceedings
Google Scholar check
MetadataShow full item record
Our efforts to improve the thermoelectric properties of β-K2Bi8Se13, led to systematic studies of solid solutions of the type β-K2Bi8-xSbxSe13. The charge transport properties and thermal conductivities were studied for selected members of the series. Lattice thermal conductivity decreases due to the mass fluctuation generated in the lattice by the mixed occupation of Sb and Bi atoms. Se excess as a dopant was found to increase the figure-of merit of the solid solutions.