Studies on electrochemically synthesized polypyrrole (Ppy) thin films for supercapacitor application

• Published in: 2013 International Conference on Energy Efficient Technologies for Sustainability pp. 1064 - 1067
• Main Authors: Thombare, J. V., Lohar, G. M., Shinde, S. K., Chougale, U. M., Fulari, V. J., Kadam, A. B., Dhasade, S. S., Rath, M. C., Han, S. H.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.04.2013
• Subjects: electrochemical polymerization method; FTIR spectroscopy; Integrated optics; Manganese; Optical films; Optical surface waves; Photonics; Polymers; Scanning electron microscopy; supercapacitor; Surface morphology; UV-Vis absorption spectroscopy
• ISBN: 9781467361491; 1467361496
• DOI: 10.1109/ICEETS.2013.6533534

In the present study, we prepared polypyrrole thin films by electrochemical polymerization method. The deposited films were characterized by different physical and chemical methods. Structural study was made by FTIR spectroscopy, the surface morphological study was made with the help of Scanning electron microscopy (SEM), the optical study and band gap energy was studied with the help of UV-Vis absorption spectroscopy. Supercapacitor testing was made with the help of cyclic voltammetry in the 0.5 M H 2 SO 4 electrolyte. The SEM picture revealed the formation of well-adherent and cauliflower structure. Electrochemically synthesized Polypyrrole thin film showed the band gap energy value of 1.8 eV. The value of specific capacitance was found to be 540 F/g in the potential window of -0.2 to 0.8 V vis-a-vis SCE in 0.1 M H 2 SO 4 as an electrolyte with the scan rate 25 mV/sec.