Fabrication and advanced optical and electronic characteristics of PVA/SiC/CeO2 hybrid nanostructures for augmented nanoelectronics and optics fields.

The current research aims to create of novel nanostructured films from silicon sarbide(SiC)/cerium oxide (CeO2) doped polyvinyl alcohol (PVA) as a promising nanocomposites materials to utilize in numerous quantum electronics and optical nanodevices. The fabricated nanostructures have great properties compared of other nanomaterials comprised few cost, excellent optical characteristics, flexible and lightweight. The structure, optical, and electronic features of PVA/SiC/CeO2 nanostructures were investigated. The structure properties included optimization, FTIR and optical microscope (OM). The optical characteristics were tested at wavelength ranged (200–800) nm. The optical characteristics results indicated that the absorbance of PVA rises about 76.9% at (λ = 240 nm, UV-spectra) while rises of 87% at (λ = 540 nm, VIS-spectra) when the SiC/CeO2 NPs content reached of (5.7 wt%).%. The energy gap decreased when the SiC/CeO2NPs content reached of 5.7wt% where it reduced from 4.5 to 2.7 eV, this performance make them appropriate for may optoelectronics nanodevices like transistors, photovoltaic cell, electronic gates, lasers, diodes and other applications. The optical parameters of PVA; with an increase in the SiC/CeO2 NPs content, the optical conductivity(σop), real (ε1) and imaginary (ε2) dielectric constants, absorption coefficient (α), refractive index (n), extinction coefficient (k), and other properties improved. Finally, the obtained results demonstrated that the PVA/SiC/CeO2 nanostructures are promising nanomaterials to employ in many quantum electronics and optical nanodevices. [ABSTRACT FROM AUTHOR]