Abstract
Herein, the vanadium pentoxide (V2O5) powder and barium titanate (BaTiO3) nanoparticles (NPs) were incorporated (1 wt % each) into the polyvinyl alcohol (PVA) matrix to fabricate a flexible film using the solution casting. Structural, morphological, elemental and chemical analysis were performed. The UV visible investigations showed a significant drop in the direct bandgap (5.04–2.61 eV), enhancement in the refractive index (1.05–1.95 at 400 nm), excellent rise in the optical conductivity (2.7 × 109 to 1.2 × 1012 S m−1 at 400 nm) after incorporation of V2O5/BaTiO3 NPs into the PVA matrix. The frequency response analysis showed a good rise in the dielectric constant (1.1–3.8 at 1 MHz) and a drop in the dielectric loss (5.4–3 at 10 MHz). Thermal analysis also indicated modifications. Enhancements were found in Young's modulus (210–374 MPa). The fabricated PVA/V2O5/BaTiO3 nanocomposite film might be a potential candidate for optoelectronic devices.
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