Multi-filling approach for the improvement of thermoelectric properties of skutterudites

L. D. Chen, X. F. Tang, T. Kawahara, J. S. Dyck, W. Chen, C. Uher, T. Goto, T. Hirai

研究成果: Paper

12 引用 (Scopus)

抜粋

Several skutterudite antimonides filled with atoms of different kinds, (Ba,M)yCo4Sb12 (M=Ce, La, Sr), have been synthesized by the combination of solid state reaction and melting methods. Thermal conductivity of (Ba,Sr)yCo4Sb12 samples shows a behavior similar to that of BayCo4Sb12. Adding a small amount of Ce or La to the BayCo4Sb12 system is effective in further reducing the lattice thermal conductivity. The difference in the ionic radii of the two co-filler atoms is the most sensitive factor for scattering of phonons. The multi-filled (Ba,M)yCo4Sb12 (M=Sr, Ce, La) show lower Seebeck coefficients as compared to the single-filled BayCo4Sb12 having the same total filling fraction. It is expected that higher thermoelectric performance could be realized by further optimization of the composition of filler species.

元の言語English
ページ57-60
ページ数4
出版物ステータスPublished - 2001 12 1
イベント20th International Conference on Thermoelectrics ICT'01 - Beijing, China
継続期間: 2001 6 82001 6 11

Other

Other20th International Conference on Thermoelectrics ICT'01
China
Beijing
期間01/6/801/6/11

ASJC Scopus subject areas

  • Engineering(all)

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  • これを引用

    Chen, L. D., Tang, X. F., Kawahara, T., Dyck, J. S., Chen, W., Uher, C., Goto, T., & Hirai, T. (2001). Multi-filling approach for the improvement of thermoelectric properties of skutterudites. 57-60. 論文発表場所 20th International Conference on Thermoelectrics ICT'01, Beijing, China.