Lifetimes, ionization energies, and discussion of the emission lines in the 1.5040–1.5110-eV range in GaAs

Abstract
We have calculated the recombination lifetimes for donor‐acceptor (DA) pairs having separations of 50–70 Å and find very good agreement with measured lifetimes. We have also measured the ionization energies of the transitions in the same spectral region using the temperature dependence of line intensity. The estimated ionization energies of DA pairs in this spectral region agree very well with the measured ionization energies. A model has been presented for the g lines, which accounts for the origin of the g lines in both GaAs and InP.