Thermoelectric properties of K2Bi8-xSbxSe13 solid solutions and Se doping

Theodora Kyratsi, Jeffrey S. Dyck, Wei Chen, Duck Young Chung, Ctirad Uher, Konstantinos M. Paraskevopoulos, Mercouri G Kanatzidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
Pages419-424
Number of pages6
Volume691
Publication statusPublished - 2002
EventThermoelectric Materials 2001-Research and Applications - Boston, MA, United States
Duration: Nov 26 2001Nov 29 2001

Other

OtherThermoelectric Materials 2001-Research and Applications
CountryUnited States
CityBoston, MA
Period11/26/0111/29/01

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Kyratsi, T., Dyck, J. S., Chen, W., Chung, D. Y., Uher, C., Paraskevopoulos, K. M., & Kanatzidis, M. G. (2002). Thermoelectric properties of K2Bi8-xSbxSe13 solid solutions and Se doping. In Materials Research Society Symposium - Proceedings (Vol. 691, pp. 419-424)