Properties Evaluation of PPY-CuO Incorporated GO as Electron Transporting Layer Material for OLED Application

The chemical oxidative polymerization (COP) method was used in the lab to create the nanocomposite materials polypyrrole (PPY), reduced graphene oxide (rGO), polypyrrole-copper oxide (PPY-CuO), and polypyrrole-copper oxide-graphene oxide (PPY-CuO-GO). It was discovered by analysis of the X-Ray diffraction (XRD) results that CuO was successfully absorbed into the surface of PPY with an average crystallite size of 38 nm. The aggregation in the PPY polymer chain was accelerated by the anisotropic behavior of CuO. The conductivity of the PPY-CuO-GO nanocomposite was considerably improved, and the current density was enriched. When compared to the original PPY, the PPY-CuO-rGO nanocomposite was shown to have an improved current density of 49.20 A/cm² and reduced band gap 1.92 eV. The PPY-CuO-rGO nanocomposite can be employed as an electron transporting layer (ETL) material for organic light emitting diodes (OLED) application due to the increased current density and high electron-hole recombination rate.