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Journal of the Korean Physical Society

, Volume 64, Issue 1, pp 84–88 | Cite as

Synthesis and thermoelectric properties of Ce z Fe4−x Co x Sb12 skutterudites

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Abstract

P-type Ce-filled skutterudites Ce z Fe4−x Co x Sb12 (z = 0.3–1, x = 1–3) were prepared, and their thermoelectric properties were examined at temperatures between 500 K and 800 K. Specimens were synthesized by encapsulated melting at 1323 K for 10 h and were hot pressed after annealing at 873 K for 24 h. Stable skutterudite phases could be obtained by the incorporation of Ce filling and charge compensation with Co for Fe. The electrical conductivity decreased slightly with increasing temperature and Co content. The Seebeck coefficient had positive values (p-type conductivity), increased with increasing temperature until a specific temperature, and then decreased thereafter. The thermal conductivity decreased through the further lattice scattering induced by substituting Co at Fe sites and by Ce filling. The thermoelectric performance of Fe-rich skutterudites was superior to that of Co-rich skutterudites. A dimensionless figure of merit of ZT max = 0.7 was achieved at 823 K for CeFe4Sb12.

Keywords

Thermoelectric Skutterudite Ce filling Charge compensation 
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References

  1. [1]
    G. A. Slack, Handbook of Thermoelectrics, edited by D. M. Rowe (CRC, Boca Raton, 1995), p. 407.Google Scholar
  2. [2]
    T. H. An, C. Park, S. M. Choi, W. S. Seo, I. H. Kim and S. U. Kim, J. Kor. Phys. Soc. 60, 1717 (2012).ADSCrossRefGoogle Scholar
  3. [3]
    I. H. Kim, S. M. Choi, W. S. Seo and D. I. Cheong, J. Kor. Phys. Soc. 61, 1376 (2012).ADSCrossRefGoogle Scholar
  4. [4]
    M. S. Song, S. M. Choi, W. S. Seo, J. Moon and K. W. Jang, J. Kor. Phys. Soc. 60,1735 (2012).ADSCrossRefGoogle Scholar
  5. [5]
    K. H. Park, S. W. You, S. C. Ur and I. H. Kim, J. Kor. Phys. Soc. 60, 1485 (2012).ADSCrossRefGoogle Scholar
  6. [6]
    V. Keppens, D. Mandrus, B. C. Sales, B. C. Chakoumakos, P. Dai, R. Coldea, M. B. Maple, D. A. Gajewski, E. J. Freeman and S. Bennington, Nature 395, 876 (1998).ADSCrossRefGoogle Scholar
  7. [7]
    J. W. Kaiser and W. Jeitschko, J. Alloys Compd. 291, 66 (1999).CrossRefGoogle Scholar
  8. [8]
    B. Bourgoin, D. B’erardan, E. Alleno, C. Godart, O. Rouleau and E. Leroy, J. Alloys Compd. 399, 47 (2005).CrossRefGoogle Scholar
  9. [9]
    E. Alleno, D. Be’rardan, C. Godart, M. Puyet, B. Lenoir, R. Lackner, E. Bauer, L. Girard and D. Ravot, Phys. B 383, 103 (2006).ADSCrossRefGoogle Scholar
  10. [10]
    Y. G. Yan, W. Wong-Ng, J. A. Kaduk, G. J. Tan, W. J. Xie and X. F. Tang, Appl. Phys. Lett. 98, 142106 (2011).ADSCrossRefGoogle Scholar
  11. [11]
    Q. Jie, J. Zhou, I. K. Dimitrov, C. P. Li, C. Uher, H. Wang, W. D. Porter and Q. Li, Mater. Res. Soc. Symp. Proc. 1267, DD03–03 (2010).CrossRefGoogle Scholar
  12. [12]
    G. J. Tan, S. Y. Wang, Y. G. Yan, H. Li and X. F. Tang, J. Electron. Mater. 41, 6 (2012).Google Scholar
  13. [13]
    J. Zhou, Q. Jie and Q. Li, Mater. Res. Soc. Symp. Proc. 1267, DD05–25 (2010).CrossRefGoogle Scholar
  14. [14]
    G. Tan, S. Wang, X. Tang, H. Li and C. Uher, J. Sol. Stat. Chem. 196, 203 (2012).ADSCrossRefGoogle Scholar
  15. [15]
    J. Y. Jung, K. H. Park and I. H. Kim, J. Kor. Phys. Soc. 58, 1421 (2011).CrossRefGoogle Scholar
  16. [16]
    P. F. Qiu, R. H. Liu, J. Yang, X. Shi, X. Y. Huang, W. Zhang, L. D. Chen, J. Yang and D. J. Singh, J. Appl. Phys. 111, 023705 (2012).ADSCrossRefGoogle Scholar
  17. [17]
    B. C. Sales, D. Mandrus and R. K. Williams, Sci. 272, 1325 (1996).ADSCrossRefGoogle Scholar
  18. [18]
    M. D. Hornbostel, E. J. Hyer, J. H. Edvalson and D. C. Johnson, Inorg. Chem. 36, 4270 (1997).CrossRefGoogle Scholar
  19. [19]
    B. C. Sales, D. Mandrus, B. C. Chakoumakos, V. Keppens and J. R. Thompson, Phys. Rev. 56, 15081 (1997).CrossRefGoogle Scholar
  20. [20]
    D. M. Rowe, V. L. Kuznetsov and L. A. Kuznetsova, Proc. the 17th Intl. Conf. Thermoelectrics, IEEE (1998), p. 323.Google Scholar
  21. [21]
    P. F. Qiu, J. Yang, R. H. Liu, X. Shi, X. Y. Huang, G. J. Snyder, W. Zhang and L. D. Chen, J. Appl. Phys. 109, 063713 (2011).ADSCrossRefGoogle Scholar
  22. [22]
    X. Shi, J. Yang, J. R. Salvador, M. Chi, J. Y. Cho, H. Wang, S. Bai, J. Yang, W. Zhang and L. Chen, J. Am. Chem. Soc. 133, 7837 (2011).CrossRefGoogle Scholar
  23. [23]
    W. Zhao, Q. Zhang, C. Dong, L. Liu and X. Tang, J. Am. Chem. Soc. 131, 3713 (2009).CrossRefGoogle Scholar
  24. [24]
    J. Graff, S. Zhu, T. Holgate, J. Peng, J. He and T. M. Tritt, J. Electron. Mater. 40, 5 (2011).CrossRefGoogle Scholar
  25. [25]
    C. Uher, C. P. Li and S. Ballikaya, J. Electron Mater. 39, 9 (2010).CrossRefGoogle Scholar
  26. [26]
    C. Kittel, Introduction to Solid State Physics, 6th ed. (John Wiely & Sons, 1986), p. 152.Google Scholar
  27. [27]
    I. H. Kim and S.C. Ur, Mater. Lett. 61, 2446 (2007).CrossRefGoogle Scholar
  28. [28]
    S. W. You and I. H. Kim, Curr. Appl. Phys. 11, S392 (2011).ADSCrossRefGoogle Scholar

Copyright information

© The Korean Physical Society 2014

Authors and Affiliations

  • Kwan-Ho Park
    • 1
  • Soonil Lee
    • 1
  • Won-Seon Seo
    • 1
  • Il-Ho Kim
    • 2
  1. 1.Energy and Environmental Materials DivisionKorea Institute of Ceramic Engineering and TechnologySeoulKorea
  2. 2.Department of Materials Science and EngineeringKorea National University of TransportationChungjuKorea

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