Optical Parameters of (KMnO4) Doped (PVA)

Abstract

Films of pure (PVA) and (PVA) doped by (KMnO4) have been prepared using casting method. We have studied the effect of(KMnO4) dopant on the optical properties of a polymer poly(vinyl alcohol) (PVA). Optical band energy gap (Eg) is estimated using (UV-VIS) spectra and it was classified as indirect allowed transition . Optical transmittance, Absorptance , Absorption coefficient , real and imaginary part of dielectric constant and Skin depth are investigated and correlated with the action of doping process.