Gamma radiation introduces improvement in Ac conductivity behavior and dielectric characterization of CuONPs@PVP-PVA nano matrix films prepared by one-potential laser ablation method

摘要

Our work introduces one-potential laser ablation procedure to insert copper oxide nanoparticles into a Polyvinyl Pyrrolidone-Polyvinyl Alcohol blend. CuONPs@PVP-PVA nanocomposites films were cast. Various doses of gamma radiation were applied to these CuONPs@PVP-PVA films (3, 5, and 7 Mrad). Structural characterization depict the presence of sharp pattern that confirms the embedding of copper oxide nanoparticles and this pattern was reduced by increasing gamma ray dosages. Copper oxide nanoparticles have a pronounced peak at 336 nm, as seen in UV-Vis absorption spectra, which is enhanced by increasing the gamma ray dose. When CuONPs@PVP-PVA films were subjected to gamma radiation, the peak at 2 theta = 38 degrees of copper oxide nanoparticles was reduced as the gamma radiation doses were increased. The implantation of CuONPs in the surface of PVP-PVA was confirmed via SEM images. The values of epsilon' and epsilon" are continuously reduced as the frequency grow by increasing the gamma ray exposure. CuONPs@PVP-PVA films exposed to gamma have significantly enhanced electrical conductivity efficiency, and they may be recommended for further investigation in electrical applications.