Автор |
J E M Haverkort |
Автор |
M P Schuwer |
Автор |
M R Leys |
Автор |
J H Wolter |
Дата выпуска |
1992-01-01 |
dc.description |
The authors have investigated spatially resolved photoluminescence spectra around several alpha - and lambda -type oval defects in GaAs/AlGaAs multiple-quantum-well structures. In their low-temperature photoluminescence set-up they combine a high spectral resolution with a 2 mu m spot size on the sample. In the alpha -type defects the authors observe a 25-45 meV low-energy tail of the main quantum well recombination peak near the core of the oval defect as well as an approximately 1 meV line broadening originating from two regions which are symmetrically located at either side of the (110) symmetry axis of the defect. These line-broadening effects are explained by vertical growth rate variations within the oval defect. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Spatial variations of photoluminescence line broadening around oval defects in GaAs/AlGaAs multiple quantum wells |
Тип |
paper |
DOI |
10.1088/0268-1242/7/1A/011 |
Electronic ISSN |
1361-6641 |
Print ISSN |
0268-1242 |
Журнал |
Semiconductor Science and Technology |
Том |
7 |
Первая страница |
A59 |
Последняя страница |
A62 |
Аффилиация |
J E M Haverkort; Dept. of Phys., Eindhoven Univ. of Technol., Netherlands |
Аффилиация |
M P Schuwer; Dept. of Phys., Eindhoven Univ. of Technol., Netherlands |
Аффилиация |
M R Leys; Dept. of Phys., Eindhoven Univ. of Technol., Netherlands |
Аффилиация |
J H Wolter; Dept. of Phys., Eindhoven Univ. of Technol., Netherlands |
Выпуск |
1A |