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Thermoelectric Properties of K2Bi8−xSbxSe13 Solid Solutions and Se Doping
Published online by Cambridge University Press: 21 March 2011
Abstract
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.
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- Copyright © Materials Research Society 2002
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