Synthesis, structure, electronic and thermal properties of sphalerite CuZn2InS4

被引：9

作者：

Ojo, Oluwagbemiga P. ^{[1
]}

Gunatilleke, Wilarachchige D. C. B. ^{[1
]}

Poddig, Hagen ^{[2
]}

Wang, Hsin ^{[3
]}

Martin, Joshua ^{[4
]}

Kirsch, Dylan J. ^{[4
,5
]}

Nolas, George S. ^{[1
]}

机构：

[1] Univ S Florida, Dept Phys, Tampa, FL 33620 USA

[2] Tech Univ Dresden, Fac Chem & Food Chem, D-01062 Dresden, Germany

[3] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

[4] Natl Inst Stand & Technol, Mat Measurement Lab, Gaithersburg, MD 20899 USA

[5] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

来源：

DALTON TRANSACTIONS | 2021年 / 50卷 / 47期

基金：

美国国家科学基金会;

关键词：

TEMPERATURE TRANSPORT-PROPERTIES; CRYSTAL-STRUCTURE; THERMOELECTRIC PROPERTIES; SEMICONDUCTORS; CHALCOGENIDES;

D O I：

10.1039/d1dt03218f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Quaternary chalcogenides continue to be of interest due to the variety of physical properties they possess, as well as their potential for different applications of interest. Investigations on materials with the sphalerite crystal structure have only recently begun. In this study we have synthesized sulfur-based sphalerite quaternary chalcogenides, including off-stoichiometric compositions, and investigated the temperature-dependent electronic, thermal and structural properties of these materials. Insulating to semiconducting transport is observed with stoichiometric variation, and analyses of heat capacity and thermal expansion revealed lattice anharmonicity that contributes to the low thermal conductivity these materials possess. We include similar analyses for CuZn2InSe4 and compare these sphalerite quaternary chalcogenides to that of zinc blende binaries in order to fully understand the origin of the low thermal conductivity these quaternary chalcogenides possess.

引用

页码：17611 / 17617

页数：7

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