| Autor: |
Herklotz, F., Lavrov, E. V., Hobson, T. D. C., Major, J. D., Durose, K. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 9/16/2024, Vol. 125 Issue 12, p1-5, 5p |
| Abstrakt: |
The optical and electrical properties of n-type chlorine-doped Sb2Se3 single crystals, with free carrier concentrations above 1016 cm−3 at room temperature, have been studied. The experiments reveal a strongly polarized temperature-dependent long-wavelength infrared absorption attributable to conduction band electrons within the material. For wavelengths between 1.6 and 6 μm, the room temperature absorption varies as λ 2.5 ± 0.3 , suggesting that longitudinal optical mode scattering is the dominant electron scattering mechanism. The results are most consistent with the hypothesis that electron transport in Sb2Se3 is band-like and not intrinsically limited by small-polaron self-trapping. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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