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Contribution to Book
Synthesis, crystal structure and thermoelectric properties of β-K2Bi8Se13 Solid Solutions
Thermoelectric Materials 2003--Research and Applications (2004)
  • Theodora Kyratsi
  • Duck-Young Chung
  • Jeff S. Dyck, John Carroll University
  • Ctirad Uher
  • Sangeeta Lal
  • Sim Loo
  • Tim Hogan
  • John Ireland
  • Carl R. Kannewurf
  • Evripides Hatzikraniotis
  • Konstantinos M. Paraskevopoulos
  • Mercouri G. Kanatzidis

Solid solution series of the type K2Bi8-xSbxSe13, K2-xRbxBi8Se13 as well as K2Bi8Se13-xSx were prepared and the distribution of the atoms (Bi/Sb, K/Rb and Se/S) on different crystallographic sites, the band gaps and their thermoelectric properties were studied. The distribution Se/S appears to be more uniform than the distribution of the Sb and Rb atoms in the β-K2Bi8Se13 structure that shows preference in specific sites in the lattice. Band gap is mainly affected by Sb and S substitution. Seebeck coefficient measurements showed n-type character for of all Se/S members. In the Bi/Sb series an enhancement of p-type character was observed. The thermoelectric performance as well as preliminary high temperature measurements suggest the potential of these materials for high temperature applications.

Publication Date
George S. Nolas, Jihui Yang, Timothy P. Hogan, David C. Johnson
Materials Research Society
Materials Research Society symposium proceedings
Publisher Statement
DOI: 10.1557/PROC-793-S9.2
Citation Information
Theodora Kyratsi, Duck-Young Chung, Jeff S. Dyck, Ctirad Uher, et al.. "Synthesis, crystal structure and thermoelectric properties of β-K2Bi8Se13 Solid Solutions" WarrendaleThermoelectric Materials 2003--Research and Applications Vol. 793 (2004)
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