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Thermoelectric properties of Co4−xMnxSb12−ySny skutterudites

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Abstract

Mn/Sn-doped CoSb3 (Co4-xMnxSb12−ySny) skutterudites were synthesized by mechanical alloying, and their thermoelectric properties were examined. A single δ-phase was obtained successfully by post-annealing and hot pressing; however, MnSb phase was observed in Co2.5Mn1.5Sb12 and Co3MnSb11.2Sn0.8 specimens. Temperature dependence of the electrical conductivity suggests that the Mn/Sn-doped specimens are degenerate semiconductors. Every specimen had a positive Seebeck coefficient, and a Co3MnSb11.6Sn0.4 specimen exhibited the highest value. Mn doping caused a decrease in the Seebeck coefficient, but it could be enhanced by Mn/Sn double doping, possibly due to charge compensation. The thermal conductivity was desirably very low, and this originated from ionized impurity-phonon scattering. Thermoelectric properties were remarkably improved by Mn/Sn doping, and a maximum figure of merit, ZT = 0.54 was obtained at 723 K in the Co3MnSb11.6Sn0.4 specimen.

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References

  1. T. Kajikawa and T. Onishi, Proc. 26th Intl. Conf. Thermoelectrics, p. 10, IEEE, Piscataway, NJ, USA (2007).

    Google Scholar 

  2. G. A. Slack and V. G. Tsoukala, J. Appl. Phys. 76, 1665 (1994).

    Article  CAS  Google Scholar 

  3. K.-H. Park, S.-C. Ur, and I.-H. Kim, Sol. Stat. Phen. 124–126, 939 (2006).

    Google Scholar 

  4. I.-H. Kim, K.-H. Park, and S.-C. Ur, J. Alloys Compd. 442, 351 (2007).

    Article  CAS  Google Scholar 

  5. M. Chitroub, F. Bess, and H. Scherrer, J. Alloys Compd. 467, 31 (2009).

    Article  CAS  Google Scholar 

  6. X. Zhang, Q.M. Lu, J.X. Zhang, Q. Wei, D.M. Liu, and Y.Q. Liu, J. Alloys Compd. 457, 368 (2008).

    Article  CAS  Google Scholar 

  7. J. L. Mi, X. B. Zhao, T. J. Zhu, and J. Ma, J. Alloys Compd. 452, 225 (2008).

    Article  CAS  Google Scholar 

  8. A. Stoch, P. Guzdek, P. Stoch, J. Pszczola, J. Chmist, A. Panta, and K. Kogut, J. Alloys Compd. 467, 83 (2009).

    Article  CAS  Google Scholar 

  9. Y. Kawaharada, K. Kurosaki, M. Uno, and S. Yamanaka, J. Alloys Compd. 375, 193 (2001).

    Article  Google Scholar 

  10. K. T. Wojciechowski, J. Tobola, and J. Leszczynski, J. Alloys Compd. 361, 19 (2003).

    Article  CAS  Google Scholar 

  11. L. Kegao, Z. Jiuxing, and X. Dong, J. Mater. Proc. Technol. 184, 257 (2007).

    Article  Google Scholar 

  12. J. Yang, Y. Chen, J. Peng, X. Song, W. Zhu, J. Su, and R. Chen, J. Alloys Compd. 375, 229 (2004).

    Article  CAS  Google Scholar 

  13. N. Zobrina and L.D. Dudkin, Sov. Phys. Sol. Sta. 1, 1668 (1960).

    Google Scholar 

  14. R. Dilley, E. D. Bauer, M. B. Maple, and B. C. Sales, J. Appl. Phys. 88, 1948 (2000).

    Article  CAS  Google Scholar 

  15. R. C. Mallik, J.-Y. Jung, S.-C. Ur, and I.-H. Kim, Met. Mater. Int. 14, 615 (2008).

    Article  CAS  Google Scholar 

  16. C. Kittel, Introduction to Solid State Physics, 6th ed., p. 152, John Wiely & Sons, Inc. (1986).

Download references

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Authors and Affiliations

  1. Department of Materials Science and Engineering / Research Center for Sustainable Eco-devices and Materials, Chungju National University, Chungbuk, 380-702, Korea

    Kwan-Ho Park & Il-Ho Kim

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  1. Kwan-Ho Park
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  2. Il-Ho Kim
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Correspondence to Il-Ho Kim.

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Park, KH., Kim, IH. Thermoelectric properties of Co4−xMnxSb12−ySny skutterudites. Electron. Mater. Lett. 7, 39–43 (2011). https://doi.org/10.1007/s13391-011-0306-5

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  • DOI: https://doi.org/10.1007/s13391-011-0306-5

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