Abstract
In this work we present theoretical photoluminescence (PL) and absorption spectra as calculated for modulation p-doped (001) AlGaN/GaN thin superlattices (SLs). We apply a self-consistent k · p method, in the framework of the effective-mass theory, which solves the full 8 × 8 Kane Hamiltonian, in conjunction with the Poisson equation in order to calculate the electronic and optical properties of these systems. The trends in the calculated Stokes shift, due to many-body effects within the quasi-two-dimensional hole gas (2DHG), are analysed as a function of the acceptor doping concentration. The in-plane hole effective mass for the first occupied energy level in the systems is predicted.
Published Version
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