Study of optical UV absorption and optical band gap determination of polyaniline with CdO

Abstract

Abstract: In this investigation, the chemical oxidative polymerisation procedure was employed to synthesise the polymer polyaniline (PANI). Utilizing an UV-visible double beam spectrophotometer working in the 300-900 nm spectral district, the optical qualities of pure PANI orchestrated and PANI/CdO nanocomposite films with changing weight rates of Cadmium oxide (1% and 5%) were analyzed in two models, both when doping. The first results demonstrate that optical characteristics such as reflectance, optical conductivity, extinction coefficient, dielectric constants, refractive coefficient and absorption coefficient increased along with the expansion of the cadmium oxide (CdO) grouping. Moreover, the results demonstrate that for the direct allowed modification, the transmittance and optical energy gap upsides decreased from 4.41 to 4.12 eV with increasing doping percentages.