Giant blue shift of photoluminescence in strongly excited type-II ZnSe/BeTe superlattices
Autor: | Dmitri R. Yakovlev, W. Ossau, S. V. Zaitsev, Andreas Waag, D. A. Pronin, V. D. Kulakovskii, G. Landwehr, A. A. Maksimov, Nikolay A. Gippius, M. Th. Litz, F. Fisher, I. I. Tartakovskii |
---|---|
Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Journal of Experimental and Theoretical Physics Letters. 66:376-381 |
ISSN: | 1090-6487 0021-3640 |
Popis: | A giant blue shift (≈0.5 eV) and a large decrease in the emission time of a spectral band corresponding to radiative recombination of spatially separated electrons and holes are observed in ZnSe/BeTe superlattices at high laser excitation levels. On the basis of numerical calculations, the observed defects are attributed to band bending arising in type-II structures at high carrier density. |
Databáze: | OpenAIRE |
Externí odkaz: |