TUNING THE STRUCTURE, OPTICAL AND PHOTOLUMINESCENCE PROPERTIES OF POLYVINYLIDENE FLUORIDE AND CdS/ZnS-based NANOCOMPOSITES

Have been developed a hybrid nanomaterials for applications in solar cells.Using ultraviolet spectroscopy, the optical absorption edges of the polymer nanocomposites have been determined, establishing that as the concentration of nanoparticles in the polyvinylidene fluoride matrix increases, the band gap decreases.Scanning electron microscope and X-diffraction analysis indicate that the cadmium and zinc sulphide nanoparticles are distributed in the polyvinylidene fluoride polymer as a separate phase and do not form a solid solution within the polymer matrix.Photoluminescence analysis reveals that for polymer nanocomposites with a hybrid combination of quantum dots, luminescence is observed over a wide range of wavelengths.