Synthesis of Zinc Sulfide Nano Crystals by Chemical Bath Deposition Methods

Abstract

Chemical bath deposition was used to create zinc sulfide (ZnS) nanoparticles. The CBD contained fixed components such as ZnCl₂, NH₄NO₃, and CS (NH₂)₂, whereas the KOH content ranged from 0.5 to 1.1 M. Samples were heated at 70°C in a bath with magnetic agitation. High transparency, homogeneity, adhesion, and crystalline ZnS films were achieved using appropriate KOH concentrations of 0.5 M and 1.1 M. For structural and optical investigation, the produced nanoparticles are examined using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infrared (FTIR) Spectroscopy, and ultraviolet-visible (UV-Vis) Absorption Spectroscopy. The crystal size appears to rise with an increase in KOH content, according to the analysis. In XRD, the cubic crystal structure can be seen at 350nm, the UV-Vis spectrum reveals a blue peak. The absorbance and type of bonds present in samples are determined by FTIR spectra.