Synthesis and Augment Structural and Optical Characteristics of PVA/SiO2/BaTiO3 Nanostructures Films for Futuristic Optical and Nanoelectronics Applications

This study goals to synthesize of silicon dioxide(SiO2)/barium titanate(BaTiO3) nanostructures filled polyvinyl alcohol(PVA) as a futuristic nanocomposites films to apply in different promising optical and nanoelectronics fields. The PVA/SiO2/BaTiO3 films were prepared with excellent optical properties, inexpensive, good chemical and mechanical characteristics compared of other nanocomposites. The structural and optical properties of PVA/SiO2/BaTiO3 films were examined. The attained results showed that the absorbance of PVA increased of 62.1% at lambda = 280 nm (UV-spectra), 80% at lambda = 580 nm (VIS-spectra) and 78.1% at lambda = 780 nm(NIR-spectra) while the transmittance reduced with increasing of the SiO2/BaTiO3 NPs content of 3.9 wt%. The indirect energy gap of PVA reduced from 4.8 eV to 3.8 eV for allowed transition and from 4.4 eV to 3.2 eV when the SiO2/BaTiO3 NPs content reached of 3.9 wt% for forbidden transition, and these results make them are welcomed in numerous optical and nanoelectronics fields. The other optical parameters: absorption coefficient; refractive index; extinction coefficient; real and imaginary parts of dielectric constants and optical conductivity of PVA enhanced with rising SiO2/BaTiO3 NPs content; these performances of optical factors cause to make the PVA/SiO2/BaTiO3 films could be useful as superior optical films for optical applications. Finally, the results confirmed that the PVA/SiO2/BaTiO3 films could be considered as a futuristic nanocomposite to utilize in a variety of promising optical and nanoelectronics applications.