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: Contribution to journalConference article

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
Pages (from-to)419-424
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume691
Publication statusPublished - Jan 1 2002
EventThermoelectric Materials 2001-Research and Applications - Boston, MA, United States
Duration: Nov 26 2001Nov 29 2001

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    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. Materials Research Society Symposium - Proceedings, 691, 419-424.