Elucidation of Electrical and Optical Parameters of Poly(o-anthranilic acid)-poly(o-amino phenol)/Copper Oxide Nanocomposites Thin Films

Copper oxide nanoparticles (CuO-NPs) are prepared based on thermal decomposition method. Polyanthranilic acid (PANA) and poly-o-aminophenol (POAP) are synthesized based on the oxidative polymerization in aqueous medium with potassium dichromate. Thin films are fabricated from PANA/POAP blends and composites of PANA/POAP with 0.25 and 0.40wt% of CuO-NPs. The resulting thin films are characterized by different techniques such as XRD, SEM and UV-Vis absorption measurements. Surface morphology displays a good level of CuO-NPs distribution in POAP/PANA blends at 0.25wt%. Initial agglomeration detects at 0.4wt% concentration of CuO-NPs. It is found that the real dielectric constant (epsilon(real)) increases with increasing CuO-NPs content. Transmittance of PANA improves up to 95% in the presence of 50wt% POAP. I-V characteristics of the PANA/POAP blend and nanocomposite films show a non-ohmic behavior. The obtained results indicate that the poly(o-anthranilic acid)-poly(o-amino phenol)/copper oxide nanocomposites thin film is a good candidate in optoelectronic devices based on its band gap and dispersion parameters.