Skip to main content Accessibility help
×
Home

The Effect of Quantum Well Structures on the Thermoelectric Figure of Merit

  • L. D. Hicks (a1) and M. S. Dresselhaus (a1)

Abstract

Currently the materials with the highest thermoelectric figure of merit, Z, are Bi2Te3 alloys. Therefore these compounds are the best thermoelectric refrigeration elements. However, since the 1960's only slow progress has been made in enhancing Z, either in Bi2Te3 alloys or in other thermoelectric materials. So far, the materials used in applications have all been in bulk form. In this paper, it is proposed that it may be possible to increase Z of certain materials by preparing them in quantum well superlattice structures. Calculations have been done to investigate the potential for such an approach, and also to evaluate the effect of anisotropy on the figure of merit. The calculations show that layering has the potential to increase significantly the figure of merit of a highly anisotropic material like Bi2Te3, provided that the superlattice multilayers are made in a particular orientation. This result opens the possibility of using quantum well superlattice structures to enhance the performance of thermoelectric coolers.

Copyright

References

Hide All
[1] Goldsmid, H. J., Thermoelectric Refrigeration (Plenum Press, New York, 1964).
[2] Horn, S. B., in Proceedings of the 1st National Thermogenic Cooler Conference (Center for Night Vision and Electro-Optics, Fort Belvoir, 1992).
[3] Ashcroft, N. W. and Mermin, N. D., Solid State Physics (Saunders College, Philadelphia, 1976), Chap. 13.
[4] Rittner, E. S., J. Appl. Phys. 30, 702 (1959).
[5] Landolt, H. H. and Börnstein, R., Numerical data and functional relationships in Science and Technology, New Series (Springer-Verlag, Berlin, 1983), Vol. 17f, pp. 272278.

The Effect of Quantum Well Structures on the Thermoelectric Figure of Merit

  • L. D. Hicks (a1) and M. S. Dresselhaus (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed