Platinum alloy decorated polyaniline counter electrodes for dye-sensitized solar cells

In order to enhance photovoltaic performances and to reduce fabrication cost of liquid-junction dye-sensitized solar cells (DSSCs), here we report platinum alloy decorated polyaniline (PANi/MPt, M = Mo, Pd, Co) counter electrodes (CEs) by an electrochemical deposition method. In comparison with pristine PANi electrode, the integration of PANi with MPt alloys markedly enhances the electrocatalytic activity towards I3− reduction reaction. The power conversion efficiencies of 8.08%, 7.26% and 6.83% are determined from DSSCs employing PANi/CoPt, PANi/PdPt, and PANi/MoPt CEs, respectively