Improvement Optical Properties of PVA/ TiO2 and PVA/ ZnO Nanocomposites

Nadheer J. Mohammed, Zahraa S. Rasheed, Ashraf S. Hassan

Abstract


The optical properties of polyvinyl alcohol (PVA) doped TiO2 and ZnO nanoparticles respectively, were studied. PVA/TiO2 and PVA/ZnO nanoparticles were prepared by the pulsed laser ablation technique (PLA).The optical properties of PVA/ TiO2 and PVA/ ZnO nanocomposite solution have been investigated by transmittance data and absorption spectra. The optical band gap (Eg) was determined and the optical absorption spectra showed that a direct transition. The energy gap of PVA/ ZnO nanoparticles have been observed the decreases its value and increasing in the optical conductivity as compared to PVA/ TiO2.The refractive index (n), extinction coefficient (k) and dielectric constant have been also investigated; it was found that all the above parameters affects by doping.

Keywords


PVA,, composites.

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References


V.P.Meshram, B.M.Suryavanshi, "Electrical Characterization of Pure and Doped with Ferric Chloride Poly(vinyl alcohol) Thin Films, International Journal of Advances in Science Engineering and Technology, ISSN: 2321-9009, Special Issue-1, pp. 171-175, (2015).

M. R.Islam, J. Podder, "Optical Properties of ZnO Nano Fiber Thin Films Grown by Spray Paralysis of Zinc Acetate Precursor", Crystal Research and Technology, Vol.44, Issue3, pp. 286-292, (2009).

M.M. Rashad and A.E. Shalan, "Synthesis and Optical Properties of Titania-PVA Nanocomposites", International Journal of Nanoparticles, Vol. 5, No. 2, (2012).

J. Larez, R. Cástell, and C. Rojas," Colloids and Composite Materials Au/PVP and Ag/PVP Generated by Laser Ablation in Polymeric Liquid Environment", Revista Mexicana De Física, Vol. 62, pp. 188–192, (2016).

F. Naseri and D. Dorranian, "Effect of aluminum nanoparticles on the linear and nonlinear optical properties of PVA", Opti and Quant Electronics , DOI 10.1007/s11082-016-0839-9, (2017).

T. Hu, L. Chen, K. Yuan, Y. Chen, Poly(N-vinylpyrrolidone)decorated Reduced grapheme oxide with ZnO grown in situ as a cathode buffer layer for polymer solar cells. Chem. Eur.J. 20, 17178–17184, (2014).

O. Stenzel, "The Physics of Thin Film Optical Spectra: An Introduction", Springer, ISBN 978-3-540-27905-1, pp.214, (2005).

K.A.M.Abdel Kader, S.F. Abdel Hamied, A.B. Mansour, A.M.Y. ELLawindy and F. ELTantaway, "Effect of The Molecular Weights on The Optical and Mechanical Properties of Poly (vinyl alcohol) Films", Polymer Testing, Vol. 21, Issue 7, pp. 847-850, (2002).

W. A. Al-Taa'y, "Optical Properties of Poly (vinyl alcohol) PVA Films Doped with Fe Citrate", Journal of Al-Nahrain University Science, Vol.17, No 4, pp.95-102, (2014).

A.A. Naimi , M.F.Zubaidi and Z. Hussen, "Studying the Optical Properties Cadmium Stunt Cd2SnO4 Thin Films Prepared by Spray Paralysis Technique", Engineering and Technology Journal , ISSN: 16816900 24120758 , Vol.27, Issue: 14 , pp. 445-456, (2009).

I.S. Yahia, A.A.M. Farag, M. Cavas, F. Yakuphanoglu, "Effects of stabilizer ratio on the optical constants and optical dispersion parameters of ZnO nano-fiber thin films, Superlattice Microstruct", Vol. 53, pp. 63–75, (2013).




DOI: http://dx.doi.org/10.23851/mjs.v29i3.629

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