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Confined Excitons in T-Shaped Quantum Wires

DOI to cite this document:
Glutsch, S. ; Bechstedt, F. ; Wegscheider, Werner ; Schedelbeck, G.
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Date of publication of this fulltext: 02 Nov 2009 13:27


The dependence of the exciton binding energy on the structural parameters in T-shaped quantum wires is studied numerically, including nonparabolicity and dielectric mismatch. The symmetric structure with pure AlAs barriers was found to give the highest exciton binding energy. Optimized asymmetric T-structures show a binding energy that is nearly constant in a large range of parameters. A large ...


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