Transformation of centers of red and infrared luminescence under electron irradiation and annealing of CdS and CdS : Cu single crystals

The luminescence centers of specially nonalloyed and alloyed with copper CdS monocrystals and their transformation under electron irradiation are studied. The Cu atoms, interacting basically with defects in the cadmium sublattice, form the CuCd centers, responsible for luminescence by the wave lengths λm = 0.98 μm. Transformation of defects complexes, responsible for the bands of green (λm = 0.541 μm), red (λm = 0.72 μm) and infrared (λm = 0.98 μm) luminescence, occurs at the annealing temperature above 50 deg C due to the increase in the mobility of point defects both in the CdS : Cu cadmium and sulfuric sublattices