The spectra of magneto-optical transitions of D- centers in GaAs/GaAlA
s quantum wells (QWs) in high magnetic fields are considered. Excellen
t agreement with the experimental data of Huant et al. for the singlet
D- transitions is found. Our predictions for the triplet D- transitio
ns can be tested directly experimentally. The changes in the spectra w
hich arise with increasing concentration of free electrons in QWs are
discussed.