ترسيب اغشية PbS الرقيقة ذات التراكيب النانومترية بطريقة الحمام المائي : تاثير درجة الحرارة وزمن الترسيب

PbS thin nanocrystalline films were deposited onto glass substrates using such as the chemical bath deposition CBD technique at different solution temperatures and various deposition times. The other parameters, such as concentration of the reactants and PH were kept constant . The structure was determined by X-ray diffraction analyses. The films are polycrystalline, very adherent to the substrate and well crystallized according to the centered cubic structure with preferential orientation a long (200). AFM picture of the PbS samples shows a nice uniform growth of the nanocrystals . The dependence of the film thickness and the crystal size with temperature and time deposition has been studied. The influence of thermal treatment under various annealing temperatures on the structure and crystal sizes for some deposited films has been studied.