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- W3145184292 endingPage "412989" @default.
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- W3145184292 abstract "Abstract The ultraviolet–visible (UV–Vis) range (200–800 nm) optical behaviour of nanocomposite films consisted of poly (vinyl pyrrolidone)/poly (vinyl alcohol) (PVP/PVA) blend matrix and alumina (Al2O3) nanofiller (1–5 wt%) was characterized for their eco-friendly green technology-based optoelectronic device applications. Absorbance, transmittance, and reflectance spectra of the (PVP/PVA)/Al2O3 films were analyzed to determine absorption coefficient, energy band gaps (direct and indirect), and Urbach energy. The non-linear decrease in band gap values of these composites with increasing amount of Al2O3 in the polymer matrix was explained. The wavelength-dependent values of refractive index, extinction coefficient, complex dielectric permittivity, and optical conductivity of these hybrid nanocomposites enhanced non-linearly with increasing filler concentration, as well as the dispersive energy, single oscillator strength, and optical susceptibility increased gradually. All these optical parameters values of the (PVP/PVA)/Al2O3 nanocomposites are found controllable by Al2O3 contents and reasonably comparable with the results of other similar types of composites." @default.
- W3145184292 created "2021-04-13" @default.
- W3145184292 creator A5030537643 @default.
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- W3145184292 date "2021-07-01" @default.
- W3145184292 modified "2023-10-13" @default.
- W3145184292 title "Investigation on the optical properties of (PVP/PVA)/Al2O3 nanocomposite films for green disposable optoelectronics" @default.
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- W3145184292 doi "https://doi.org/10.1016/j.physb.2021.412989" @default.
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