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Thermal annealing recovery of intersubband transitions in proton-irradiated GaAs/AlGaAs multiple quantum wells

Hegeler, F; Manasreh, M O; Morath, C; Ballet, P; Yang, H; Salamo, G; Jagadish, Chennupati; Tan, Hark Hoe


Intersubband transitions in 1 MeV proton-irradiated GaAs/AlGaAs multiple quantum wells were studied using an optical absorption technique and isochronal thermal annealing. The intersubband transitions were completely depleted in samples irradiated with doses as low as 4 × 1014 cm-2. More than 80% recovery of these depleted transitions was achieved after the samples were thermally annealed at temperatures less than 650°C. The total integrated areas and peak position energies of the intersubband...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Applied Physics Letters


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