Preparation and Study Optical Properties of (PVA-PVP-CrCl2) Composites

Abstract

In present research, the effect of addition chromium chloride (CrCl₂) on the optical properties of (PVA-PVP) composite has been studied, samples have been prepared by adding (CrCl₂) to poly vinyl alcohol and poly vinyl pyrrolidone with different weight percentages, the absorbance spectra was recorded in the wavelength range            (200-1100) nm. The absorption coefficient, optical energy gap of the indirect transition, extinction coefficient, refractive index and (real, imaginary) dielectric constant have been determined.

Keywords: Optical properties, (PVA-PVP) composites, chromium chloride.