International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 111

Iraq | Physics Science | Volume 4 Issue 1, January 2015 | Pages: 2489 - 2492


Optical Properties of (PVA-PAA-Ag) Nanocomposites

Abdulsattar k. Abbas, Riyadh Mwad Naife, Farhan Lafta Rashid, Ahmed Hashim

Abstract: In this paper, the effect of silver nanoparticles on optical properties of (PVA-PAA) nanocomposites has been investigated. The silver nanoparticles were added to the polymers (polyvinyl alcohol 80 wt. % and poly-acrylic acid 20 wr. %) with weight percentages of (0, 2, 4, 6) wt. %. The optical properties of nanocomposites were measured in the wavelength range (200-800) nm. The experimental results show that the absorbance (A) of polymers mixture, absorption coefficient (), extinction coefficient (k), refractive index (n) and real and imaginary dielectric constants (1 and 2) are increasing with the increase of the weight percentages of silver nanoparticles. The energy gap (Eg) of polymers is decreased with the increase of the silver nanoparticles concentrations.

Keywords: Optical Properties, Nanocomposites, Polyvinyl alcohol, Silver Nanoparticles



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