Improved Thermoelectrics Based on Bismuth and Antimony Chalcogenides for Temperatures below 240 K
| Periodical | Advances in Science and Technology (Volume 74) |
|---|---|
| Main Theme | 5th FORUM ON NEW MATERIALS PART C |
| Edited by | Pietro VINCENZINI, Kunihito KOUMOTO, Nicola ROMEO and Mark MEHOS |
| Pages | 77-82 |
| DOI | 10.4028/www.scientific.net/AST.74.77 |
| Citation | Lidia N. Lukyanova et al., 2010, Advances in Science and Technology, 74, 77 |
| Online since | October, 2010 |
| Authors | Lidia N. Lukyanova, Vsevolod A. Kutasov, Piotr P. Konstantinov, Valeri V. Popov |
| Keywords | Scattering Mechanism, Solid Solutions Based on Bismuth Telluride, Thermoelectricity, Transport Property |
| Price | US$ 28,- |
Thermoelectric and galvanomagnetic properties for solid solution based on bismuth and antimony chalcogenides were studied for the optimal compositions and carrier concentrations in the temperature interval 100-240 K. Galvanomagnetic properties were analyzed in the framework of the many–valley energy spectrum model with isotropic and anisotropic scattering of charge carries. The figure-of-merit is shown to be determined with optimal relations between the values of the density-of-states effective mass, the carrier mobility taking into account degeneration of charge carriers, and the lattice thermal conductivity. The figure-of-merit also depends on anisotropy of the constant energy surface and scattering mechanism. Average values of the figure-of-merit
