Optics and Photonics Society of Iran

Polyaniline and Polyaniline-Platinum (PANI-Pt) nancomposite are synthesized by chemical routes. Nanostructures of Polyaniline and PANI-Pt were compared. Optical and electrical characteristics of nanocomposites were identified by Uv-Vis, XRD and scanning electron microscope (SEM). From the UV-spectrum the band gap energy (Eg) was deduced. The SEM micrographs of colloidal platinum nanoparticles were spherical, uniform shape in the composite. The current-voltage (I-V) characteristics of the PANI and PANI-Pt nanocomposites were also studied which indicate a significant decreasing resistivity than PANI-Pt after introduction of Platinum nanoparticles in the matrix of polyaniline.