Study of the Optical Properties, Characterization and Synthesis of Cadmium Sulphide Embedded in Polyaniline Matrix

Nanotechnology, often shortened to nanotech, is the use of matter on atomic, molecular, and supramolecular scales for industrial purposes. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products, also now referred to as molecular nanotechnology. The chemical oxidative polymerization of aniline using ammonium peroxodisulphate as an initiator and the presence of cadmium sulphide nanoparticles has been used to create polyaniline-cadmium sulphide nanocomposite. In order to characterize the materials' structural, thermal, and optical properties, TEM, SEM, XRD, TGA, DSC, UV-Vis spectroscopy, and photoluminescence experiments were carried out on the samples. The particle size of nanocomposites lies in between 6-10 nm. XRD spectrum shows that polyaniline is amorphous, but peaks present in the spectrum of polymer nanocomposites are for cadmium sulphide nanoparticles. TGA and DSC result shows that nanocomposite is more thermally stable. An enhancement in photoluminescence has been observed in the nanocomposite than that in pure polyaniline.