Study of Optical Properties of (PMMA-CuO) Nanocomposites

The effect of addition the copper oxide nanoparticles on optical properties of polymethylmethacrylate has been studied. For this purpose, many samples have been prepared by adding copper oxide nanoparticles to with different weight percentages by using casting method. The absorption spectra has been recorded at the wavelength ranges (300-1000) nm. The results show that the (absorption coefficient, extinction coefficient, refractive index and real and imaginary dielectric constants) of (PMMA-CuO) nanocomposites are increasing with the increase of the copper oxide nanoparticles concentrations. The energy band gap of (PMMA-CuO) nanocomposites decreases with the increase of the copper oxide nanoparticles concentrations.