Thermoelectric properties of chemically substituted skutterudites YbyCo4SnxSb12-x

被引:99
作者
Dilley, NR
Bauer, ED
Maple, MB [1 ]
Sales, BC
机构
[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92093 USA
[3] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
关键词
D O I
10.1063/1.1305837
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report the results of a study of thermoelectric properties of chemically substituted quasiternary materials related to the recently discovered filled skutterudite compound YbFe4Sb12. The study explored partial filling at the Yb site as well as chemical doping with Sn at the Sb site in an attempt to optimize the thermoelectric figure of merit ZT in the system YbyCo4SnxSb12-x. Our measurements of these physical quantities from room temperature down to T=10 K indicate that, in our study, only the alloy Yb0.44Co4Sb12 possessed thermoelectric properties that are improved over the parent compound YbFe4Sb12, attaining a value of ZT=0.1 at T=300 K. (C) 2000 American Institute of Physics. [S0021- 8979(00)03116-9].
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页码:1948 / 1951
页数:4
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