Abstract
Polyvinyl pyrrolidone (PVP)-polyvinyl alcohol (PVA) (1:1) polymer mixture films were developed using the solution-casting technique. Physical properties engineering of as grown chemical casting films were achieved through the Tb-NiO nanoparticles mixing in a polymer blend with
different content of 0.0, 0.037, 0.37, 1.85, and 3.7 wt%. The variation of physical properties of nanocomposites thin layer was examined from X-ray diffractometer, atomic force microscope (AFM), FTIR spectroscopy, and Uv-visible spectroscopy. Optical band gaps of polymer nanocomposites films
were calculated to study the influence of Tb-NiO nanoparticle doping are decreased after addition of Tb-NiO nanostructures in the composites. AFM images of films reveal successful adsorption of Tb-NiO nanoparticles in polymer blend. In addition, FTIR spectra showed successful
loading of Tb-NiO nanoparticles in PVP/PVA blend matrix. The extinction coefficients, refractive index, optical dielectric constant and optical conductivity were also investigated in correlation with different wt% Tb-NiO doping concentrations. In addition, the values of oscillator,
dispersion energies Eo, Ed and static refractive indices no were calculated. The optical limiting behavior of films showed that the polymer nanocomposite films are suitable for flexible optoelectronics devices.