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A Detailed Theoretical Study of the Thermal Conductivity of Bi2(Te0.85Se0.15)3 Single Crystals

Published online by Cambridge University Press:  21 February 2012

Ö. Ceyda Yelgel  and
Gyaneshwar P. Srivastava
Ö. Ceyda Yelgel
Affiliation:
School of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK
Gyaneshwar P. Srivastava
Affiliation:
School of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK
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Abstract

We present a theoretical investigation of the thermal conductivity for n-type doped Bi2(Te0.85Se0.15)3 single crystals by using the Debye model within the single-mode relaxationtime approximation. A detailed account of alloy, electron-phonon, phonon-phonon and electron-hole pair (bipolar) interactions are included. Different levels (0.1 and 0.05 wt.%) of n-doping from CuBr and SbI3 dopants were considered. The calculated conductivity, by combining lattice (κ ph) and electronic bipolar (κ bp) contributions, successfully explains the experimental results obtained by Hyun et al. [J. Mat. Sci. 33 5595 (1998)]. The κ ph contribution was calculated using Srivastava’s scheme and the κ bp contribution was obtained by employing Price’s theory.

Keywords

thermal conductivitythermoelectricalloy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1404: Symposium W – Phonons in Nanomaterials–Theory, Experiments and Applications , 2012 , mrsf11-1404-w03-02
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

[1] Rowe, D. M. and Bhandari, C. M., ‘Modern Thermoelectrics’ (Reston Publishing Company, Virginia, 1983).Google Scholar
[2] Rowe, D. M., ‘Thermoelectrics Handbook’ (Taylor and Francis Group, London, 2006).Google Scholar
[3] Poudel, B., Hao, Q., Ma, Y., Lan, Y., Minnich, A., Yu, B., Yan, X., Wang, D., Muto, A., Vashaee, D., Chen, X., Liu, J., Dresselhaus, M. S., Chen, G., Ren, Z., Science 320 634 (2008).Google Scholar
[4] Venkatasubramanian, R., Siivola, E., Colpitts, T., and Quinn, O’, Nature 413 597 (2001).Google Scholar
[5] Goyal, V., Teweldebrhan, D., and Balandin, A. A., App. Phys. Let. 97 133117 (2010).Google Scholar
[6] Zahid, F. and Lake, R., App. Phys. Let. 97 212102 (2010).Google Scholar
[7] Hyun, D. B., Hwang, J. S., You, B. C., Oh, T. S., Hwang, C. W., J.Mat. Sci. 33 5595 (1998).Google Scholar
[8] Srivastava, G. P., ‘The Physics of Phonons’ (Taylor and Francis Group, New York, 1990).Google Scholar
[9] Tritt, T. M., ‘Thermal Conductivity Theory, Properties and Applications’ (Kluwer Academic/Plenum Publishers, London, 2004).Google Scholar
[10] Holland, M. G., Phys. Rev. 134 A471 (1964).Google Scholar
[11] Parrott, J. E., Rev. Int. Hautes Temp. Refract 16 393 (1979).Google Scholar
[12] Slack, G. A. and Glassbrenner, C. J., Phys. Rev. 120 782 (1960).Google Scholar
[13] Glassbrenner, C. J. and Slack, Glen A., Phys. Rev. 134 A1058 (1964).Google Scholar
[14] Wilson, A. H., ‘The Theory of Metals’ (Cambridge University Press, London, 1953).Google Scholar
[15] Koh, Y. K. and Cahill, D. G., Phys. Rev. B 76 075207 (2007).Google Scholar
[16] Ziman, J. M., ‘Electrons and Phonons’ (Clarendon Press, Oxford, 1960).Google Scholar
[17] Hyun, D. B., Hwang, J. S., Oh, T. S., Shim, J. D., and Kolomoets, N. V., J. Phys. Chem. Sol. 59 1039 (1998).Google Scholar
[18] Lide, D. R., ‘CRC Handbook of Chemistry and Physics’ (Taylor and Francis Group LLC, 87th Edition, 2007).Google Scholar
[19] Silva, L. W. and Kaviany, M., Int. J. Heat and Mass 47 2417 (2004).Google Scholar