Investigation and Study on the Optical and Electrical Properties of Polymeric Nanocomposites

This Study has prepared the conductive polymers (polyaniline) and their zinc oxide nanocomposites through in-situ polymerization in the presence of Ammonium Persulphate (APS) as the oxidizing agent. We examined the optical band gap of these PANi-ZnO nanocomposites at room temperature over various percentages of ZnO ranging between 10- 40 percent. The structure of the crystal of ZnO was verified to be hexagonal by the X-ray diffraction analysis. The use of Scherer formula calculated an average particle size of ZnO 38.27 nm. All the nanocomposites in terms of the weight percentages showed a characteristic ZnO peak of 375 nm in optical absorption spectroscopy. These extra absorption peaks at 300 nm and 400 nm also confirmed the presence of polyaniline. We also defined an electrical conductivity and dielectric properties and dielectric constant of the materials. These tests were conducted at room temperature and in the frequency range of 40Hz to 5MHz. This paper gives an in-depth study of the structural optical thermal and dielectric characteristics of Polyaniline/ZnO nanocomposites. These materials were produced in the first instance through in-situ polymerization method.