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Influence of Thickness on Dispersion Parameters of Silver Nitrate Doped Poly (Vinyl Alcohol) | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 22, Issue 4, 2011, Pages 233-239 | ||
| Author | ||
| Saad Farhan Oboudi | ||
| Abstract | ||
| Poly (vinyl alcohol) doped AgNO3 films with different thicknesses were prepared by casting method. The thickness of the prepared films were 10, 20, 30 and 40 µm. Absorption spectra have been recorded in order to study the effect of increasing thickness on some optical constants. This study reveals that the absorbance and absorption coefficient have affect by increasing the film thickness. The single–oscillator parameters were determined and its value decreases from 4.67eV to 3.9eV by increasing thickness from 10 to 40µm. The optical energy gap decreased from 2.33 eV to 1.95 eV. | ||
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