Optical properties of ZnO nanoparticles dispersed in PMMA/PVDF blend
M.I.Mohammed;
Abstract
Blend films based on PMMA/PVDF(80/20wt %) undoped and doped with different concentration of ZnO
nanoparticles ranging from (5e20) wt % were prepared by casting technique. Characteristics of the
nanocomposites were examined using XRD and UVeVis optical spectroscope in the wavelength range
(200e800) nm. Complexation has been confirmed using XRD. The refractive index n and extinction
coefficient k were observed to increase with increasing concentration of ZnO nanoparticles. Analysis of
the absorption coefficient data reveal that the rule of direct transition predominates. It has been found
that the optical energy gap decreases with increasing ZnO content, while the width of the tails in the gap
have an opposite behavior. Other optical parameters, oscillator energy, dispersion energy, the loss factor,
the volume, the surface energy loss functions and the optical conductivity as a function of ZnO content
are also studied and discussed.
nanoparticles ranging from (5e20) wt % were prepared by casting technique. Characteristics of the
nanocomposites were examined using XRD and UVeVis optical spectroscope in the wavelength range
(200e800) nm. Complexation has been confirmed using XRD. The refractive index n and extinction
coefficient k were observed to increase with increasing concentration of ZnO nanoparticles. Analysis of
the absorption coefficient data reveal that the rule of direct transition predominates. It has been found
that the optical energy gap decreases with increasing ZnO content, while the width of the tails in the gap
have an opposite behavior. Other optical parameters, oscillator energy, dispersion energy, the loss factor,
the volume, the surface energy loss functions and the optical conductivity as a function of ZnO content
are also studied and discussed.
Other data
| Title | Optical properties of ZnO nanoparticles dispersed in PMMA/PVDF blend | Authors | M.I.Mohammed | Keywords | PMMA PVDF blend ZnO Nanocomposites X-ray diffraction (XRD) Optical study | Issue Date | 2018 | Publisher | Elsevier | Journal | Journal of Molecular Structure | Volume | 1169 | Start page | 9 | End page | 17 |
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