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- Jin, Hosub
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LiPbSb3S6: A Semiconducting Sulfosalt with Very Low Thermal Conductivity
- Author(s)
- Agha, EC, Malliakas, CD, Im, J, Jin, Hosub, Zhao, LD, Freeman, AJ, Kanatzidis, MG
- Issued Date
- 2014-01
- Citation
- INORGANIC CHEMISTRY, v.53, 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.
- Publisher
- AMER CHEMICAL SOC
- ISSN
- 0020-1669
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