D.S. Bhavsar
The single crystals of Lead Iodide were grown by gel method. Thermally evaporated Lead Iodide thin films, of gel grown Lead Iodide crystals deposited on glass substrate with constant temperature (353 K). Then, the structural characterizations of these films were done by XRD, Epignost Microscope and EDAX. The XRD shows, the films were polycrystalline in nature having hexagonal structure. The lattice parameters are almost matching with the ASTM data of the Lead Iodide. The most preferential orientation is along [0 0 4] for all the deposited films together with the abundant plane [0 0 3] and [0 0 2]. The surface topography of these films inferred that the growth of these films takes place by two-dimensional nucleation process. EDAX performed on these films indicates that there is proper proportion of the Lead and Iodine. The lattice parameters, grain size and microstrain in the films are calculated and correlated.
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