Dispersion Parameters of Polyvinyl Alcohol Films doped with Fe

Polyvinyl alcohol polymer was dissolved in water in order to prepare films with different concentration of Fe utilizing casting method. The optical properties were obtained by recording the transmittance spectrum in the wavelength range (300-900) nm. The dispersion parameters were calculated using t...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-05, Vol.1003 (1), p.12094
Main Authors: Habubi, Nadir F, Abass, Khalid H, Sami, Chiad S, Latif, Duha M A, Nidhal, Jandow N, Al Baidhany, A Ismaeel
Format: Article
Language:English
Subjects:
Energy gap
Iron
Optical properties
Parameters
Physics
Polyvinyl alcohol
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Summary:Polyvinyl alcohol polymer was dissolved in water in order to prepare films with different concentration of Fe utilizing casting method. The optical properties were obtained by recording the transmittance spectrum in the wavelength range (300-900) nm. The dispersion parameters were calculated using the Wemple-DiDomenico method. Dispersion energy (Ed) and the single oscillator energy of electronic transition (Eo) were decreased with the increasing of Fe content in the PVA-Fe films. While Urbach energy was increased. The energy gap decreased from 4.08 eV to 3.52 eV for PVA: 4% Fe film.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1003/1/012094