Paper Title
Copper-Polypyrrole Composite Films: Electrochemical Synthesis and Morphological Study

Abstract
In this study, we investigated the charcateristics of composite thin films of polypyrrole (PPy) and copper (Cu) particles deposited onto indium tin oxide (ITO) substrate. The composites were synthesized using a facile two-step electrochemical process: at first, PPy films were grown in organic media by electropolymerization method under potentiodynamic control. Then, Cu particles were inserted within the polymeric matrix by reducing metal ions (Cu2+) using potentiostatic method. The surface morphology of the Cu-PPy composites was analysed by Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM). It was found that the obtained composites showed a globular morphology of the PPy film with a large amount of Cu particles well-dispersed on its surface with an average particles size of about 300 to 700 nm. The four-probe measurments demonstrated an enhancement in electrical conductivity of the Cu-PPy composites compared to the pristine PPy. Keywords - Composite, Conducting Polymer, Copper, Electrochemical Deposition.