Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
59 (1991), S. 800-802
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Time-resolved photoluminescences (PL) of AlxGa1−xAs (0≤x≤0.5) bulk alloys, AlAs/GaAs ordered superlattices, and AlAs/GaAs disordered superlattices are measured at 77 K and compared. The PL lifetimes of the AlAs/GaAs disordered superlattices were always shorter than those of the Al0.5Ga0.5As bulk alloy and the AlAs/GaAs ordered superlattices with indirect band gaps. These shorter PL lifetimes of the disordered superlattices suggest a relaxation of the momentum conservation during radiative recombination by intentional disordering.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.105347
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