Structural, Optical and Electrical Properties of Lead Iodide Synthesized using the Golden Rain Method

The present work aims to prepare thin films of lead iodide (PbI2) using the golden rain method. The optical, structural and electrical properties of these films were studied. The X-Ray diffraction (XRD) patterns showed that the structure of PbI2 is polycrystalline and has a nanostructure with sizes up to 3 nm, which was calculated using the Williamson–Hall formula, while the scanning electron microscopy results showed that the PbI2 structures have average sizes ranging from 72.2 to 111.8 nm. The optical properties results showed that the absorption peak was in the ultraviolet region at a wavelength of 290 nm. Finally, the electrical properties study using the Hall effect showed that the resulting material PbI2 is a p-type semiconductor.