Study The Effect of Manganese Sulphate Monohydrate on Optical Properties of Polyvinyl Alcohol (PVA)

Abstract

The present work is concerned to study the optical properties ofpolyvinyl alcohol (PVA) and Manganese sulphate monohydrate(Mn . films. Casting method used to prepare with differentconcentration of Manganese sulphate monohydrate. The absorption andtransmission spectra have been recorded at the wavelength ranges (200-900) nm by using (UV-Visible) spectrophotometer. The results show that(The absorption coefficient, extinction coefficient and energy gap of theindirect allowed and forbidden transition) vary with the concentration ofMn . dopant.