Conducting polymers can be doped and dedoped rapidly to a high charge density, hence, they can be applied as active materials for supercapacitors. Higher energy densities can be achieved because charging occurs through very thin thicknesses from the nano to microscale range. Taking into account the costs and compatibility of the materials, the modification of carbon fiber by electrocoating of poly(3,4-alkylenedioxythiophene)s for microsupercapacitor applications seems to be a very attractive method. [3,4-(2,2-dimethylpropylenedioxy)thiophene] was electrodeposited cyclovoltametrically onto the carbon fiber micro electrode. An electrochemical impedance spectroscopic study was performed at applied potential, in different electrolytes and solvents and evaluated with our previous findings by reviewing.