Skip to main content

Thermoelectric properties of P-type bismuth telluride powders synthesized by a mechano-chemical process

Electronic Materials Letters volume 6, pages 177–180 (2010)Cite this article

Abstract

P-type bismuth telluride thermoelectric (TE) powders were synthesized by a mechano-chemical process (MCP) in which a mixture of Bi sulfate, Sb chlorides, and TeO2 powders was dried, calcinated, and reduced to a powder alloy with ternary composition. The synthesized powders were a few micrometers in size, with a clear Bi0.5Sb1.5Te3 phase. The powders were consolidated into p-type bismuth telluride bulk materials that exhibited an electrical resistivity of 0.6×10−5 Ωm, a Seebeck coefficient of 140 μVK−1, and a thermal conductivity of 1.3 Wm−1K−1 at 298 K. Dimensionless figures-of-merit increased from 0.8 to 1.18 as the temperature increased from 298 K to 450 K. The results show that MCP is a promising process for the production of p-type bismuth telluride powders as raw materials for high-performance TE bulk alloys.

This is a preview of subscription content, access via your institution.

Access options

Buy single article

Instant access to the full article PDF.

39,95 €

Price includes VAT (Finland)

References

  1. R. Venkatasubramanian, E. Silvola, T. Colpitts, and B. O’Quinn, Nature 413, 597 (2001).

    Article  Google Scholar 

  2. M. Toprak, Y. Zhang, and M. Muhammed, Mat. Lett. 57, 3976 (2003).

    Article  Google Scholar 

  3. Y. Q. Cao, X. B. Zhao, T. J. Zhu, X. B. Zhang, and J. P. Tu, Appl. Phys. Lett. 92, 143106 (2008).

    Article  Google Scholar 

  4. X. A. Fan, J. Y. Yang, R. G. Chen, W. Zhu, and S. Q. Bao, Mater. Sci. Eng. A 190, 438 (2006).

    Google Scholar 

  5. W. Xien, X. Tang, Y. Yan, Q. Zhang, and T. M. Tritt, Appl. Phys. Lett. 94, 102111 (2009).

    Article  Google Scholar 

  6. X. B. Zhao, X. H. Ji, Y. H. Zhang, T. J. Zhu, J. P. Tu, and X. B. Zhang, Appl. Phys. Lett. 86, 062111 (2005).

    Article  Google Scholar 

  7. Y. Xu, Z. Ren, W. Ren, K. Deng, Y. Zhong, Mat. Lett. 62, 763 (2008).

    Article  Google Scholar 

  8. B. Poudel, Q. Hao, Y. Ma, Y. Lan, A. Minnich, B. Yu, X. Yan, D. Wang, A. Muto, D. Vahaee, Z. Chen, J. Liu, M. S. Dresselhaus, G. Chen, and Z. Ren, Science 320, 634 (2008).

    Article  Google Scholar 

  9. H. Masuda, K. Higashitani, and H. Yoshida, Powder Technology Handbook, 3rd ed., p. 239, CRC Press, New York (2006).

    Book  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Korea Institute of Materials Science, 797 Changwon-darero, Sangnam-dong, Seongsan-gu, Changwon-si, 641-831, Gyeongnam, Korea

    Kyung Tae Kim, Kyong Ju Kim & Gook Hyun Ha

Authors
  1. Kyung Tae Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Kyong Ju Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Gook Hyun Ha
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Kyung Tae Kim.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Kim, K.T., Kim, K.J. & Ha, G.H. Thermoelectric properties of P-type bismuth telluride powders synthesized by a mechano-chemical process. Electron. Mater. Lett. 6, 177–180 (2010). https://doi.org/10.3365/eml.2010.12.177

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3365/eml.2010.12.177

Keywords

  • mechano-chemical process
  • bismuth telluride
  • powder technology
  • thermoelectric properties