Effect of quantum confinement on shallow acceptor transitions in δ-doped GaAs/AlAs multiple-quantum wells

W. M. Zheng, M. P. Halsall, P. Harmer, P. Harrison, M. J. Steer

    Research output: Contribution to journalArticlepeer-review

    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 languageEnglish
    Pages (from-to)735-737
    Number of pages2
    JournalApplied Physics Letters
    Volume84
    Issue number5
    DOIs
    Publication statusPublished - 2 Feb 2004

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