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research article
Observation of long-lived oblique excitons in GaN-AlGaN multiple quantum wells
1999
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. [S0163-1829(99)09815-X].
Type
research article
Authors
Gil, B.
•
Lefebvre, P.
•
Allegre, J.
•
Mathieu, H.
•
•
Leroux, M.
•
Massies, J.
•
Bigenwald, P.
•
Christol, P.
Publication date
1999
Published in
Volume
59
Issue
15
Start page
10246
End page
10250
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 5, 2010
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