Synthesis, crystal structure and transport properties of skutterudite-related CoSn1.5Se1.5

被引：20

作者：

Laufek, F. ^{[1
]}

Navratil, J. ^{[2
,3
]}

Plasil, J. ^{[4
,5
]}

Plechacek, T. ^{[2
,3
]}

Drasar, C. ^{[6
]}

机构：

[1] Czech Geol Survey, Prague 15200 5, Czech Republic

[2] IMC AS CR, Joint Lab Solid State Chem, Pardubice 53210, Czech Republic

[3] Univ Pardubice, Pardubice 53210, Czech Republic

[4] Charles Univ Prague, Fac Sci, Prague 12843 2, Czech Republic

[5] Natl Museum, Prague 11579 1, Czech Republic

[6] Univ Pardubice, Dept Phys, Fac Chem Technol, Pardubice 53210, Czech Republic

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 479卷 / 1-2期

关键词：

CoSn1.5Se1.5; Crystal structure; X-ray powder diffraction; Transport properties; THERMOELECTRIC PROPERTIES; RIETVELD REFINEMENT; ANTIMONIDES; COSB3;

D O I：

10.1016/j.jallcom.2009.01.067

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The skutterudite-related phase CoSn1.5Se1.5 has been synthesised and structurally characterized by powder X-ray diffraction data. CoSn1.5Se1.5 display trigonal symmetry, space group R (3) over bar, unit cell parameters a = 12.3278(3) angstrom, c = 15.1267(6) angstrom, V= 1990.8(1) angstrom(3) and Z= 24. Its crystal structure can be viewed as a modification of the ideal skutterudite structure CoAs3, where the Sn and Se anions order in layers perpendicular to the [111] direction of the skutterudite unit cell. Transport properties of the title compound, which is p-type semiconductor, have been investigated. The thermoelectric figure of merit ZT(max) was found 0.1 at 600 K. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：102 / 106

页数：5

共 20 条

[1] Synthesis, crystal structure and thermoelectric properties of IrSn1.5Te1.5-based skutterudites [J].