Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
77 (2000), S. 4127-4129
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We have performed spatially resolved photoluminescence spectroscopy on the entire 2 in. sapphire wafers containing GaN/AlxGa1−xN multiple quantum wells grown by metalorganic chemical vapor deposition. We have observed an energy shift of about 50 meV in the ground level emission energy between the center and the peripheric regions of the samples. We show that such a variation in the emission energy is due to a well narrowing of about 3 ML from the center to the outer regions of the wafers, which induces a large Stark shift through the built-in field. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1334358
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