Nickel-substituted skutterudites: synthesis, structural and electrical properties

被引：78

作者：

Chapon, L ^{[1
]}

Ravot, D ^{[1
]}

Tedenac, JC ^{[1
]}

机构：

[1] Univ Montpellier 2, CNRS, UMR 5617, Lab Physicochim Mat Condensee, F-34095 Montpellier 05, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 282卷 / 1-2期

关键词：

filled skutterudites; Ni substitution; resistivity; thermoelectricity;

D O I：

10.1016/S0925-8388(98)00850-0

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：

Based on AB(3) (A=Co, Lr, Rh and B=P, As and Sb) compounds, filled skutterudites (MA(4)B(12); M=rare earth) are promising new thermoelectric elements, increasing their figure of merit requires realizing substitutions to give these compounds semiconducting character with a carrier concentration around 10(19) cm(-3) and decreasing their thermal conductivity. In this framework, many published works have been devoted to CeFe4Sb12 which, although metallic due to the trivalent character of the cerium ion, is the starting compound for numerous substitutions. For CeyFe4-xNixSb12, the substitution of nickel for iron gives semiconducting compounds. In this paper, we present our results on these compounds synthesized by the thermal treatment usually applied to obtain CeFe4Sb12. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：58 / 63

页数：6

共 12 条

[1] Bridgman-solution crystal growth and characterization of the skutterudite compounds CoSb3 and RhSb3 [J].