Studies on optical, structural and thermal properties of CdS:PEO nanocomposite solid films having different molar concentration

Cadmium Sulphide (CdS) nanoparticles were incorporated in PEO matrix. No capping agent was used other than the polymer to reduce the size of the CdS particles. The optical properties of the CdS:PEO nanocomposites were analysed and the transmittance of the solid films was found to be above 80%. The structural analysis of the nanocomposites was carried out using Transmission Electron microscope (TEM) and Atomic force microscope (AFM) and the particle size variation for different concentrations of CdS:PEO nanocomposites and the size distribution of CdS particles incorporated in the polymer matrix was analysed. The thermal properties of CdS:PEO nanocomposites were analysed using Differential scanning Calorimetry (DSC). The melting point shift of PEO matrix and the thermal stability of the matrix after incorporating CdS were found.