Optical properties for prepared polyaniline graphene nano composites films

Abstract EN

In this research Polymer Polyaniline (PANI) was synthesized by the chemical oxidative polymerization method.

Optical properties for pure PANI synthesized and PANI/GR nanocomposite films with different weight percentage of Graphene (1 %, 3 %, and 5 %) were investigated using UV-visible double beam spectrophotometer within spectral region (300-900) nm for two cases before and after doping.

The experimental results show that the optical properties such as absorbance, reflection, absorption coefficient, extinction coefficient, refractive coefficient, dielectric Constants and optical conductivity increased with an increasing of the concentration of Graphene (GR), as well as the results indicate that the values of transmittance and optical energy gap for direct allowed transition decreasing from 3.52 eV to 3.23 eV with increasing ratio of doping.-