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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 1999

Observation of long-lived oblique excitons in GaN-AlGaN multiple quantum wells.

Résumé

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.
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hal-01302655 , version 1 (14-04-2016)

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Bernard Gil, Pierre Lefebvre, Jacques Allègre, Henry Mathieu, Nicolas Grandjean, et al.. Observation of long-lived oblique excitons in GaN-AlGaN multiple quantum wells.. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 1999, 59 (15), pp.10246. ⟨10.1103/PhysRevB.59.10246⟩. ⟨hal-01302655⟩
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