Abstract
We have investigated the optical transitions in Be δ-doped GaAsAlAs multiple quantum wells with various width and doping levels. The fractional dimensionality model was extended to describe free-electron-acceptor (free hole-donor) transitions in a quantum well. The measured photoluminescence spectra from the samples were interpreted within the framework of this model, and acceptor-impurity induced effects in the photoluminescence line shapes from multiple quantum wells of different widths were demonstrated.
Original language | English |
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Article number | 235322 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 72 |
Issue number | 23 |
DOIs | |
Publication status | Published - 15 Dec 2005 |
Externally published | Yes |