Optical and Dielectric Performance of Green-Synthesized TiO2-Reinforced PVA–PVP–Chitosan Nanocomposite FilmsKavitha Arulraj, A.J. Sunija and Kottaisamy ME3S Web Conf., 702 (2026) 02004DOI: https://doi.org/10.1051/e3sconf/202670202004