Published April 15, 1999
| Version v1
Journal article
Observation of long-lived oblique excitons in GaN-AlGaN multiple quantum wells.
Contributors
Others:
- Groupe d'étude des semiconducteurs (GES) ; Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)
- Centre de recherche sur l'hétéroepitaxie et ses applications (CRHEA) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)
- Avignon Université (AU)
Description
The 2-K recombination dynamics of coupled GaN-AlGaN multiple quantum wells reveals a composite nature in terms of the joint contributions of short-lived direct excitons and long-lived oblique ones. The possibility to observe these oblique excitons, which produce a unusual blueshift of the photoluminescence at long decay times is found to be in straightforward correlation with the presence of internal electric fields together with the existence of a slight disorder at the monolayer scale.
Abstract
International audienceAdditional details
Identifiers
- URL
- https://hal.science/hal-01302655
- URN
- urn:oai:HAL:hal-01302655v1
Origin repository
- Origin repository
- UNICA