▎ 摘　　要

Solid-state supercapacitors are fabricated using transparent polymethyl methacrylate (PMMA) films decorated by breath figures BF, as an electrode and polyvinyl alcohol (PVA)-H2SO4 as an electrolyte. The holes on the surface of the transparent PMMA created by BF method have diameters of 0.5-10 mu m. Graphene is deposited by spray coating using a dispersion mixture of graphene layers. The fabricated electrodes were characterized by cyclic voltammetry (CV), galvanostatic charge-discharge, electrochemical impedance spectroscopy, charge stability and life time for evaluating their supercapacitance performance. From CV data at 5 mV/s scan rate, high specific capacitance equal to 344 for BFPMMA/G F/g and, 45 F/g for PMMA/G has been measured. By the same way, energy densities have been measured as 430 and 56.25 Wh/kg for the mentioned electrodes, respectively.