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Giant blue shift of photoluminescence in strongly excited type-II ZnSe/BeTe superlattices |
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| Authors: | S. V. Zaitsev V. D. Kulakovskii A. A. Maksimov D. A. Pronin I. I. Tartakovskii N. A. Gippius M. Th. Litz F. Fisher A. Waag D. R. Yakovlev W. Ossau G. Landwehr |
| Affiliation: | 1. Institute of Solid-State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow Region, Russia 2. Institute of General Physics, Russian Academy of Sciences, 117942, Moscow, Russia 3. Physikalisches Institut der Universit?t Würzburg Am Hubland, 97074, Würzburg, Germany 4. A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, Russia |
| Abstract: | 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. Pis’ma Zh. éksp. Teor. Fiz. 66, No. 5, 351–356 (10 September 1997) |
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