LiPbSb3S6: A Semiconducting Sulfosalt with Very Low Thermal Conductivity

被引：20

作者：

Agha, Eva C. ^{[1
]}

Malliakas, Christos D. ^{[1
]}

Im, Jino ^{[2
]}

Jin, Hosub ^{[2
]}

Zhao, Li-Dong ^{[1
]}

Freeman, Arthur J. ^{[2
]}

Kanatzidis, Mercouri G. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

来源：

INORGANIC CHEMISTRY | 2014年 / 53卷 / 02期

基金：

美国国家科学基金会;

关键词：

STRONG 2ND-HARMONIC GENERATION; CRYSTAL-STRUCTURE; BAND-GAP; PERFORMANCE; CHEMISTRY; SULFIDES; DENSITY; FLUXES; SE; RB;

D O I：

10.1021/ic402262z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页码：673 / 675

页数：3

共 40 条

[1] Soluble Semiconductors AAsSe2 (A = Li, Na) with a Direct-Band-Gap and Strong Second Harmonic Generation: A Combined Experimental and Theoretical Study [J].