Thermoelectric Properties of (Pd, Co) Sb<sub>3</sub> Compound with Skutterudite Structure
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- Matsubara Kakuei
- Science University of Tokyo in Yamaguchi
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- Iyanaga Daiji
- Yamaguchi University
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- Tsubouchi Takahiro
- Yamaguchi University
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- Kishimoto Kengo
- Yamaguchi University
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- Koyanagi Tsuyoshi
- Yamaguchi University
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- Anno Hiroaki
- Science University of Tokyo in Yamaguchi
Bibliographic Information
- Other Title
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- スクッテルダイト構造をもつ(Pd, Co) Sb<sub>3</sub>化合物の熱電気的特性
- スクッテルダイト構造をもつ(Pd,Co)Sb3化合物の熱電気的特性
- スクッテルダイト コウゾウ オ モツ Pd Co Sb3 カゴウブツ ノ ネツ
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Abstract
An average figure of merit value of Z-10-3K-1 was achieved for CoSb3 substituted by Pd (3%) over the wide temperature range 300-800K. Samples of (PdxCo1-x) Sb3 compounds, 0≤x≤0.05, were prepared by static iso-thermal pressing (SIP) the milled powders and by subsequent annealing in inert gas. Measurements of the electrical and thermal transport properties were made on the samples at temperatures ranging from 300K to 800K. It was found that the conduction type was n-type and the electron mobility as high as-100cm2/(Vs) was obtained for a (Pd0.03Co0.97) Sb3 sample. The high value of the mobility can be attributed to the valence band that is only formed by p-p bonds between adjacent Sb-atoms. The doping of Pd into CoSb3 lattice causes the type conversion from p-type to n-type, and results in a high Seebeck coefficient of S--0.3mV/K, electrical conductivity σ-3×102 S/cm, and low thermal conductivity k-2.5W/(mK) at room temperature.
Journal
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- IEEJ Transactions on Fundamentals and Materials
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IEEJ Transactions on Fundamentals and Materials 116 (3), 268-272, 1996
The Institute of Electrical Engineers of Japan
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Details
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- CRID
- 1390001204599976064
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- NII Article ID
- 10004165225
- 130006839689
- 10002819192
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- NII Book ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL BIB ID
- 3925963
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed