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| Título: | Temperature dependence of the effective mobility edge and recombination dynamics of free and localized excitons in InGaP/GaAs quantum wells |
Autor: | Rudamas, C.; Martínez Pastor, Juan Pascual CSIC ORCID; González Sotos, Luisa CSIC ORCID ; Vinattieri, A.; Colocci, M. | Palabras clave: | Quantum wells Photoluminescence Disorder |
Fecha de publicación: | abr-2003 | Editor: | Elsevier | Citación: | Physica E 17: 206-208 (2003) | Resumen: | The temperature dependence of the effective mobility edge in semiconductor quantum wells containing disorder is reported for the first time. It is deduced by reproducing the experimental continuous wave and time resolved luminescence spectra by means of a two-class exciton kinetic model, which considers the co-existence of free and localized excitons and introduces a mobility edge defined by a Fermi function. The mobility edge varies faster than the PL peak energy when the temperature increases, passing from the high energy side of the PL band at low temperatures (recombination of localized excitons dominates) to the low energy side above 125 K (recombination of quasi-free excitons dominates). | Descripción: | 3 páginas, 1 figura.-- Comunicación presentada al Proceedings of the International Conference on Superlattices, Nano-structures and Nano-devices ICSNN 2002 o-structures and Nano-devices ICSNN 2002. | Versión del editor: | http://dx.doi.org/10.1016/S1386-9477(02)00774-9 | URI: | http://hdl.handle.net/10261/33752 | DOI: | 10.1016/S1386-9477(02)00774-9 | ISSN: | 1386-9477 |
| Aparece en las colecciones: | (IMN-CNM) Artículos |
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