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Jin, Hosub
Quantum Materials Design Lab
Research Interests
  • Spin-orbit coupling, electron-correlation, topological quantum phases

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LiPbSb3S6: A Semiconducting Sulfosalt with Very Low Thermal Conductivity

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Title
LiPbSb3S6: A Semiconducting Sulfosalt with Very Low Thermal Conductivity
Author
Agha, ECMalliakas, CDIm, JJin, HosubZhao, LDFreeman, AJKanatzidis, MG
Keywords
STRONG 2ND-HARMONIC GENERATION; CRYSTAL-STRUCTURE; BAND-GAP; PERFORMANCE; CHEMISTRY; RB; CS; SULFIDES; DENSITY; FLUXES
Issue Date
2014-01
Publisher
AMER CHEMICAL SOC
Citation
INORGANIC CHEMISTRY, v.53, no., pp.673 -
Abstract
The new semiconductor LiPbSb3S6 crystallizes in the space group P2(1)/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, similar to 0.24 W m(-1) K-1 at room temperature, and a high resistivity, similar to 4 x 10(9) Omega.cm, and exhibits strong light absorption with a nearly direct band gap of 1.6 eV.
URI
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DOI
10.1021/ic402262z
ISSN
0020-1669
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PHY_Journal Papers
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