New type of excitonic radiation in the solid solutions CdS1−xSex

Manifestations of bulk crystalline regions with stacking faults are detected in the reflection and photoluminescence spectra of CdS1-xSex crystals with a variety of compositions. The magnitude of the crystal-field anisotropy and the spin-orbit splitting in these crystals are estimated. It is shown that reabsorption affects the form of the photoluminescence in crystals with stacking faults.