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Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films

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Main Authors: Shehap, A.M., Akil, Dana S.
Format: Article
Language:English
Published: Universiti Malaysia Perlis 2016
Subjects:
PVA
XRD
FTIR
UV-visible
Wemple-DiDomenico
TiO₂
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41368
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spelling my.unimap-413682017-11-21T01:28:22Z Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films Shehap, A.M. Akil, Dana S. PVA XRD FTIR UV-visible Wemple-DiDomenico TiO₂ Link to publisher's homepage at http://ijneam.unimap.edu.my/ Polymeric films based on polyvinyl alcohol (PVA) doped with titanium dioxide nanoparticles at different weight percentage (1.25, 2.5, 5, 7.5, 10 TiO₂/PVA) were prepared using the sonification and casting techniques. The structural properties of amorphous domain in PVA polymer matrix increased with raising the TiO₂ content. The complexation of the dopant with the polymer was examined by FTIR studies .The absorption spectra of UV-Visible light showed irregular changes of the absorption for high doping samples in UV range (7.5, 10 TiO₂ /PVA). Absorbance, transmittance and reflectance spectra were used for the determination of the optical constants. The results indicated that the optical band gap decreases with increasing TiO₂ content, while the refractive index increased to high value for the composites of high dopant. Using the Wemple-DiDomenico model, we calculated the static reflection index, the oscillation energy, and the dispersion energy. The dispersion energy changes slowly as a function of TiO₂ percentage .The dispersion parameters and the high frequency dielectric constant were determined. In addition the average oscillator wavelength λ0 and oscillator strength S0 for the investigated samples were found to be strongly affected by the nanopartices dopant. 2016-04-26T07:40:21Z 2016-04-26T07:40:21Z 2016 Article International Journal of Nanoelectronics and Materials, vol.9 (1), 2016, pages 17-36 1985-5761 (Printed) 1997-4434 (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41368 en Universiti Malaysia Perlis
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic PVA
XRD
FTIR
UV-visible
Wemple-DiDomenico
TiO₂
spellingShingle PVA
XRD
FTIR
UV-visible
Wemple-DiDomenico
TiO₂
Shehap, A.M.
Akil, Dana S.
Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films
description Link to publisher's homepage at http://ijneam.unimap.edu.my/
format Article
author Shehap, A.M.
Akil, Dana S.
author_facet Shehap, A.M.
Akil, Dana S.
author_sort Shehap, A.M.
title Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films
title_short Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films
title_full Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films
title_fullStr Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films
title_full_unstemmed Structural and optical properties of TiO₂ nanoparticles/PVA for different composites thin films
title_sort structural and optical properties of tio₂ nanoparticles/pva for different composites thin films
publisher Universiti Malaysia Perlis
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41368
_version_ 1643802801496653824
score 13.222552

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