Synthesis and Characterization of Polyethylene Vinyl Acetate / ZnSe Nanocomposite

In the not too distant past, polymer scientists and technologists expanded their horizons from consumer products to the high technology arena, particularly notable in opto - electronic applications. Ethylene Vinyl Acetates (EVA) are popular because of their superior adhesion to most substrates as well as their ease of formulation. Its High transparency is a key attribute for photovoltaic cell encapsulation. It is expected that with the addition of ZnSe nano fillers, EVA becomes a high refractive index polymer (HRIP) with refractive index >2.5 and posses anti-reflective property. In this work, ZnSe nanoparticles were synthesised by solvo-thermal method. Nano – Composite matrices based on polyethylene vinyl acetate / ZnSe were prepared by chemical replacement mechanism. Refractive index of prepared polymer nanocomposites were calculated from dielectric study using Hioki 3532-50 LCR HITESTER at various frequencies and temperatures. The presence of nano filler enhanced the refractive index and it varied with frequency and temperature. UV-Vis-NIR Spectra of the samples enable to determine the bandgap and was found to decrease with increasing the concentration of nano fillers dispersed in polymer matrix. I-V characteristics of the nanocomposites were plotted at various concentrations of nano fillers and at various temperatures.