Studying the Effect of Substrate Temperature on the Optical Properties of Iron Oxide (Fe2O3) Thin Films prepared by Chemical Spray Pyrolysis technique

Abstract

Iron Oxide (Fe2O3) thin films were prepared by Chemical Spray Pyrolysis technique, on glass substrates at temperatures (400,450,500 °C), The optical properties were studied by recording the absorption and transmission spectra in the range (400-900) nm, the optical constants such as (Reflectivity, extinction coefficient, refractive coefficient and Dielectric constant partially real and imaginary) were calculated for the films as a function of wave length, we found that the transmittance and the optical band gap for the direct allowed electronic transition decrease with the increasing of substrate temperature.