Abstract
The k-conserving selection rule in the electron-hole recombination is investigated by intensity-dependent photoluminescence measurements in n-type modulation-doped Ga x In1-x As-Al y In1-y As single quantum wells intentionally doped with Be acceptors in the well centre. The k-non-conserving recombination process involves electrons with momentum up to the Fermi edge and holes localized on the Be acceptors. The transition from a one-component electron plasma to a two-component electron-hole plasma is studied by comparing the experimental results with theoretical line shape models. The density-dependent band gap renormalization is determined for the one-component and the two-component electron-hole plasma. The obtained results are found to agree well with recent theoretical calculations.
Original language | English (US) |
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Pages (from-to) | 675-687 |
Number of pages | 13 |
Journal | Il Nuovo Cimento D |
Volume | 15 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1993 |
Externally published | Yes |
Keywords
- Optical properties of thin films surfaces, and thin layer structures (including superlattices, heterostructures, and intercalation compounds)
- Other luminescence and radiative recombination
ASJC Scopus subject areas
- General Physics and Astronomy