Optical responses of alkali-halide matrix (NaCl)-doped silver

In this work, we investigated the optical properties and the evolution of AgCl semiconductor aggregates dispersed in an ionic crystalline matrix, NaCl. These aggregates were obtained by doping the NaCl matrix with a silver powder (Ag). Microcrystals of AgCl of various sizes were consequently obtained with a mean size of View the MathML source. A thermal annealing, whose principal effect is the variation of crystallite sizes, was then carried out. The study was undertaken in a systematic way by PL, CL measurements and X-ray diffraction (XRD). PL spectrum exhibits a response leading to the formation of AgCl aggregates within NaCl host confirmed by DRX patterns. Also photoluminescence showed the presence of the silver chloride aggregates and their photosensitivity was revealed by the formation of silver clusters.