LiPbSb3S6: A semiconducting sulfosalt with very low thermal conductivity

Eva C. Agha; Christos D. Malliakas; Jino Im; Hosub Jin; Li Dong Zhao; Arthur J. Freeman; Mercouri G. Kanatzidis

doi:10.1021/ic402262z

LiPbSb₃S₆: A semiconducting sulfosalt with very low thermal conductivity

Eva C. Agha, Christos D. Malliakas, Jino Im, Hosub Jin, Li Dong Zhao, Arthur J. Freeman, Mercouri G. Kanatzidis^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The new semiconductor LiPbSb₃S₆ crystallizes in the space group P2₁/c. The structure is a member of the lillianite homologous series and is composed of layers of PbS archetype Sb/Li-S separated by trigonal-prismatic-coordinated Pb/Li. Electronic band structure calculations indicate an indirect band gap, with direct gaps lying very close in energy. LiPbSb₃S₆ has one of the lowest thermal conductivities seen in a crystalline material, ∼0.24 W m^-1 K^-1 at room temperature, and a high resistivity, ∼4 × 10⁹ Ωcm, and exhibits strong light absorption with a nearly direct band gap of 1.6 eV.

Original language	English (US)
Pages (from-to)	673-675
Number of pages	3
Journal	Inorganic chemistry
Volume	53
Issue number	2
DOIs	https://doi.org/10.1021/ic402262z
State	Published - Jan 21 2014

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "LiPbSb3S6: A semiconducting sulfosalt with very low thermal conductivity",

abstract = "The new semiconductor LiPbSb3S6 crystallizes in the space group P21/c. The structure is a member of the lillianite homologous series and is composed of layers of PbS archetype Sb/Li-S separated by trigonal-prismatic-coordinated Pb/Li. Electronic band structure calculations indicate an indirect band gap, with direct gaps lying very close in energy. LiPbSb3S6 has one of the lowest thermal conductivities seen in a crystalline material, ∼0.24 W m-1 K-1 at room temperature, and a high resistivity, ∼4 × 109 Ωcm, and exhibits strong light absorption with a nearly direct band gap of 1.6 eV.",

author = "Agha, {Eva C.} and Malliakas, {Christos D.} and Jino Im and Hosub Jin and Zhao, {Li Dong} and Freeman, {Arthur J.} and Kanatzidis, {Mercouri G.}",

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TY - JOUR

T1 - LiPbSb3S6

T2 - A semiconducting sulfosalt with very low thermal conductivity

AU - Agha, Eva C.

AU - Malliakas, Christos D.

AU - Im, Jino

AU - Jin, Hosub

AU - Zhao, Li Dong

AU - Freeman, Arthur J.

AU - Kanatzidis, Mercouri G.

PY - 2014/1/21

Y1 - 2014/1/21

N2 - The new semiconductor LiPbSb3S6 crystallizes in the space group P21/c. The structure is a member of the lillianite homologous series and is composed of layers of PbS archetype Sb/Li-S separated by trigonal-prismatic-coordinated Pb/Li. Electronic band structure calculations indicate an indirect band gap, with direct gaps lying very close in energy. LiPbSb3S6 has one of the lowest thermal conductivities seen in a crystalline material, ∼0.24 W m-1 K-1 at room temperature, and a high resistivity, ∼4 × 109 Ωcm, and exhibits strong light absorption with a nearly direct band gap of 1.6 eV.

AB - The new semiconductor LiPbSb3S6 crystallizes in the space group P21/c. The structure is a member of the lillianite homologous series and is composed of layers of PbS archetype Sb/Li-S separated by trigonal-prismatic-coordinated Pb/Li. Electronic band structure calculations indicate an indirect band gap, with direct gaps lying very close in energy. LiPbSb3S6 has one of the lowest thermal conductivities seen in a crystalline material, ∼0.24 W m-1 K-1 at room temperature, and a high resistivity, ∼4 × 109 Ωcm, and exhibits strong light absorption with a nearly direct band gap of 1.6 eV.

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LiPbSb₃S₆: A semiconducting sulfosalt with very low thermal conductivity

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