Synthesis, structure, and optical properties of CdS thin films nanoparticles prepared by chemical bath technique

CdS nanocrystalline thin films were deposited onto glass substrates by chemical bath deposition (CBD). The films deposited at 80 °C for 6 h with two different concentrations of thiourea. The deposition parameters were optimized. The obtained films were characterized for structural and optical properties, X-ray diffraction patterns revealed that the films were nanocrystalline in nature with cubic structures. A blue shift in the band gap was observed in the UV–visible absorption spectra indicating the formation of nano particles of sizes between 3.826 and 8 nm.