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