Synthesis, crystal structure and thermoelectric properties of β-K 2Bi8Se13 solid solutions

Theodora Kyratsi; Duck Young Chung; Jeff S. Dyck; Ctirad Uher; Sangeeta Lal; Sim Loo; Tim Hogan; John Ireland; Carl R. Kannewurf; Evripides Hatzikraniotis; Konstantinos M. Paraskevopoulos; Mercouri G. Kanatzidis

doi:10.1557/proc-793-s9.2

Synthesis, crystal structure and thermoelectric properties of β-K ₂Bi₈Se₁₃ solid solutions

Theodora Kyratsi^*, Duck Young Chung, Jeff S. Dyck, Ctirad Uher, Sangeeta Lal, Sim Loo, Tim Hogan, John Ireland, Carl R. Kannewurf, Evripides Hatzikraniotis, Konstantinos M. Paraskevopoulos, Mercouri G. Kanatzidis

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

Solid solution series of the type K₂Bi_8-xSb _xSe₁₃, K_2-xRb_xBi₈Se ₁₃ as well as K₂B₁₈Se_13-xS _x 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-K ₂B₁₈Se₁₃ 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 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.

Original language	English (US)
Pages (from-to)	359-364
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	793
DOIs	https://doi.org/10.1557/proc-793-s9.2
State	Published - 2003
Event	Thermoelectric Materials 2003 - Research and Applications - Boston, MA., United States Duration: Dec 1 2003 → Dec 3 2003

ASJC Scopus subject areas

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

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Kyratsi, T., Chung, D. Y., Dyck, J. S., Uher, C., Lal, S., Loo, S., Hogan, T., Ireland, J., Kannewurf, C. R., Hatzikraniotis, E., Paraskevopoulos, K. M., & Kanatzidis, M. G. (2003). Synthesis, crystal structure and thermoelectric properties of β-K ₂Bi₈Se₁₃ solid solutions. Materials Research Society Symposium - Proceedings, 793, 359-364. https://doi.org/10.1557/proc-793-s9.2

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title = "Synthesis, crystal structure and thermoelectric properties of β-K 2Bi8Se13 solid solutions",

abstract = "Solid solution series of the type K2Bi8-xSb xSe13, K2-xRbxBi8Se 13 as well as K2B18Se13-xS x 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-K 2B18Se13 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 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.",

author = "Theodora Kyratsi and Chung, {Duck Young} and Dyck, {Jeff S.} and Ctirad Uher and Sangeeta Lal and Sim Loo and Tim Hogan and John Ireland and Kannewurf, {Carl R.} and Evripides Hatzikraniotis and Paraskevopoulos, {Konstantinos M.} and Kanatzidis, {Mercouri G.}",

year = "2003",

doi = "10.1557/proc-793-s9.2",

language = "English (US)",

volume = "793",

pages = "359--364",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Thermoelectric Materials 2003 - Research and Applications ; Conference date: 01-12-2003 Through 03-12-2003",

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TY - JOUR

T1 - Synthesis, crystal structure and thermoelectric properties of β-K 2Bi8Se13 solid solutions

AU - Kyratsi, Theodora

AU - Chung, Duck Young

AU - Dyck, Jeff S.

AU - Uher, Ctirad

AU - Lal, Sangeeta

AU - Loo, Sim

AU - Hogan, Tim

AU - Ireland, John

AU - Kannewurf, Carl R.

AU - Hatzikraniotis, Evripides

AU - Paraskevopoulos, Konstantinos M.

AU - Kanatzidis, Mercouri G.

PY - 2003

Y1 - 2003

N2 - Solid solution series of the type K2Bi8-xSb xSe13, K2-xRbxBi8Se 13 as well as K2B18Se13-xS x 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-K 2B18Se13 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 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.

AB - Solid solution series of the type K2Bi8-xSb xSe13, K2-xRbxBi8Se 13 as well as K2B18Se13-xS x 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-K 2B18Se13 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 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.

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U2 - 10.1557/proc-793-s9.2

DO - 10.1557/proc-793-s9.2

M3 - Conference article

AN - SCOPUS:2442512100

SN - 0272-9172

VL - 793

SP - 359

EP - 364

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Thermoelectric Materials 2003 - Research and Applications

Y2 - 1 December 2003 through 3 December 2003

ER -

Synthesis, crystal structure and thermoelectric properties of β-K ₂Bi₈Se₁₃ solid solutions

Abstract

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