Synthesis, Crystallographic Studies, and Characterization of K 2Bi8Se13-xSx Solid Solutions

Theodora Kyratsi, Mercouri G. Kanatzidis

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Abstract

The detailed crystal structures of selected members of solid solutions of the thermoelectric compounds K2Bi8Se13-xS x with x = 4, x = 6 and x = 10 were determined. The purpose of this study was to understand the nature of Se/S mass fluctuations introduced when β-K2Bi8Se13 is alloyed with isostructural K2Bi8S13. The details of the K/Bi disorder and Se/S distribution are examined. Lattice parameters, semiconducting band gaps and melting points are reported as function of x.

Original languageEnglish
Pages (from-to)2222-2228
Number of pages7
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume629
Issue number12-13
Publication statusPublished - Dec 1 2003

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Keywords

  • Bismuth
  • Chalcogenides
  • Selenium
  • Thermoelectric properties

ASJC Scopus subject areas

  • Inorganic Chemistry

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