Abstract
The effect of quantum well (QW) confinement on the transitions of shallow acceptors confined in GaAs/AlAs multiple QW (MQW) was studied. The photoluminescence (PL) spectra were measured at various temperatures, and two-hole transitions of the acceptor-bound exciton were observed for a series of beryllium (Be) δ-doped GaAs/AlAs MQWs and GaAs:Be epilayers. The growth of the layers was performed using the technique of stoichiometric low-temperature growth. The results show that the acceptor transition energy between the ground state and the excited state increases as the effect of the QW confinement is enhanced.
Original language | English |
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Pages (from-to) | 735-737 |
Number of pages | 2 |
Journal | Applied Physics Letters |
Volume | 84 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2 Feb 2004 |