Abstract
A new technique has been developed, which allows the controlled, partial disordering of GaAs/AlGaAs multiple quantum wells, using thermal diffusion of aluminium and/or gallium vacancies created by etching the surface oxides. Spectral measurements by photoluminescence and optical absorption indicate that the disordering can result in a blue shift of the effective band edge by up to 40 nm without broadening of the excitonic resonances.
Original language | English |
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Pages (from-to) | 1564-1566 |
Number of pages | 3 |
Journal | Semiconductor Science and Technology |
Volume | 9 |
Issue number | 8 |
DOIs | |
Publication status | Published - Aug 1994 |