| Citation: |
Wang Kun, Tang Xinfeng, Zhang Qingjie. Thermoelectric Properties of p-Type Rare-Earth Element Cerium-Filled Skutterudite CeyFexCo4-xSb12[J]. Journal of Semiconductors, 2006, In Press.
Wang K, Tang X F, Zhang Q J. Thermoelectric Properties of p-Type Rare-Earth Element Cerium-Filled Skutterudite CeyFexCo4-xSb12[J]. Chin. J. Semicond., 2006, 27(6): 1021.
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Thermoelectric Properties of p-Type Rare-Earth Element Cerium-Filled Skutterudite CeyFexCo4-xSb12
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Abstract
Cobalt-rich filled skutterudite compounds CeyFexCo4-xSb12(y=0～0.42) are synthesized using the melting-diffusion method.The structure and thermoelectric properties of the compounds are investigated.Results indicate that the lattice constants increase linearly with the Ce filling fraction.Hall coefficient is positive.Hole concentration and electrical conductivity decreased as the Ce filling fraction increases.Seebeck coefficient increase with the Ce filling fraction.The lattice thermal conductivity reached the minimum value when the Ce filling fraction was about 0.29,indicating that the effect of Ce rattling on phonon scattering is the strongest as Sb-dodecahedron partial voids are filled by Ce.A maximum ZT value of 0.65 is obtained for Ce0.29Fe1.41Co2.59Sb12.32 at 725K.-
Keywords:
- p-type skutterudite,
- synthesis,
- thermoelectric properties
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References
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Proportional views
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