Abstract
This study focuses on investigating and characterizing the effects of gamma irradiation on enhancing the structural, optical, and electrical properties of copper oxide nanoparticles (CuO NPs) scattered in Polyvinyl Pyrrolidone (PVP)/Polyethylene Oxide (PEO). CuO NPs@PVP/PEO composites have been prepared via one-potential laser ablation process then were subjected to different gamma ray doses of Mrad using an Indian 60Co gamma cell (2000 Ci) at room temperature. The structural and optical characterizations of the enhanced nanocomposite have been characterized using different techniques; FT-IR, UV–Vis, FE-SEM, and PL. The electrical conductivity and the dielectric properties of the irradiated CuO NPs@PVP/PEO have been investigated. FT-IR spectra revealed structural rearrangements in the polymeric because of the effect of gamma radiation. UV/vis. Spectra revealed a visible band at 281 nm allocated to the surface Plasmon resonance of CuO NPs, which is primarily influenced by the irradiation dose. The optical parameter values were improved due to the inclusion of CuO NPs and differed according to the dose of gamma irradiation. Photoluminescence analysis verified that the gamma radiation affect comprehensively rearrange the delocalized PEO/PVP composite n-electron network. Dielectric constant and dielectric loss activity is gradually decreased as the frequency increases by increasing the gamma radiation dose. It can be concluded that the obtained CuO NPs@PVP/PEO nanocomposite irradiated to gamma are suitable for electrical applications.
•Nanosecond Nd:YAG was utilized to synthesis of PEO/PVP/CuONPs via one-step PLAL method.•PEO/PVP/CuONPs films were prepared by traditional casting technique.•Gamma radiation enhanced the electrical conductivity of PEO/PVP/CuONPs films.