For potential photonic crystals fabrication, studying the physical and chemical features of zinc oxide doped with polyvinyl alcohol and polyaniline ZnO/PVA/PANI as nanocomposite to ensure its conduction level was the main goal of this work. The prepared nanocomposites of ZnO/PVA/PANI were obtained by in-situ chemical oxidation method using solution casting as coating technique. ZnO/PVA/PANI nanostructured composite was initially checked structurally, morphologically and optically. Field emission high resolution scanning electron microscopy (FEHRSEM) and FTIR were utilized for nanostructure morphological confirmation and structure investigation. The interaction of ZnO and the polymeric blend displaying the role of the incorporation of the semiconducting ZnO affecting the structure and changing the optical absorbance of the PVA/PANI nanocomposite compared to pure counterpart. A number of diffraction peaks were visible in the hexagonal wurtzite phase of zinc oxide at 30.78°(100), 34.44°(002), 36.28°(101), 47.58°(102), 56.62°(110), and 62.00, indicating a strong intermolecular hydrogen link between ZnO and the PVA/PANI co-blend. In the Raman analysis, the longitudinal optical (LO) phonons, and various low and high phonon modes are clearly visible.