| Autor: |
Meng, J. F., Chandra Shekar, N. V., Badding, J. V., Nolas, G. S. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2/1/2001, Vol. 89 Issue 3, p1730, 4p, 1 Diagram, 3 Graphs |
| Abstrakt: |
Semiconducting germanium clathrates are thermoelectric materials with cage-like structures that exhibit "phonon glass, electron crystal" behavior. We report an improvement by at least a factor of 3 in the dimensionless thermoelectric figure of merit for the clathrate semiconductor Sr[sub 8]Ga[sub l6]Ge[sub 30] upon compression to 7 GPa. These results suggest that there is potential for further improving the thermoelectric properties of this material at ambient pressure by chemical or other methods. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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