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

Abstract

PbS thin nanocrystalline films were deposited onto glasssubstrates using such as the chemical bath deposition cgntechnique at different solution temper.atures and variousdeposition times. The other parameters, such as concentration ofthe reactants and PH were kept constant . The structure wasdetermined by X-ray diffraction anaryses. The films arepolycrystalline, very adherent to the substrate and wellcrystallized according to the centered cubic structure withpreferential orientation a long (200). AFM picture of the pbSsamples shows a nice uniform growth of the nanocrystals .The dependence of the film thickness and the crystal size withtemperature and time deposition has been studied. The influenceof thermal treatment under various annealing temperatures on thestructure and crystal sizes for some deposited films has beenstudied.