PVA/Gd2O3@Zno Nanocomposite Films as New Uv-Blockers: Structure and Optical Revelations

Herein we have synthesised Gadolinium oxide doped Zinc (Gd2O3@ZnO) by solution combustion method and incorporated it as a nano-filler into Polyvinyl alcohol (PVA) polymer matrix using intercalation technique to get PVA/Gd2O3@ZnO nanocomposite film. The X-ray diffraction (XRD), Scanning electron microscopy, Differential scanning calorimetry (DSC) UV–Vis spectroscopy were used investigate the structural, morphological, glass transition temperature optical properties of synthesized nanocomposites respectively. film shows interaction –OH groups in PVA dopant. From DSC, is clear that Tg prepared nano-composites increases with increasing dopant concentration. XRD analysis showed crystalline characteristics increase UV–Visible spectra reveals there decrease indirect band gap from 4.94 3.12 eV direct 4.90 3.03 compared pristine Gd2O3@ZnO films multi-fold enhancement such refractive index PVA, conductivity, finess coefficient, extinction coefficient on concentration (0%, 2%, 4%, 6% 8 wt%).The show excellent UV-blocking behaviour suggesting that, they are promising materials for devices.