LOW-TEMPERATURE PHOTOLUMINESCENCE DETERMINATION OF DISLOCATION SLIP SYSTEMS IN CDSE SINGLE-CRYSTALS

The transformation of the low-temperature emission spectrum of cadmium selenide crystals during plastic deformation by a point load and by u niaxial compression is investigated. A one-to-one correspondence is es tablished between the occurrence of photoluminescence bands in the vic inity of 1.765 eV and the motion of dislocations in the prismatic slip system, on the one hand, and the emergence of a 1.792-eV band as a re sult of dislocation slip in the basal plane, on the other. (C) 1998 Am erican Institute of Physics. [S1063-7834(98)01610-4].