Judicious selection of a pinhole defect filler to generally enhance the performance of organic dye-sensitized solar cells

An effective strategy of filling the pinhole defects of organic dye-grafted titania films via judicious selection of a filler as well as its bath solvent has been proposed to generally attenuate the interfacial charge recombination kinetics, bringing forth improved photovoltage, photocurrent and efficiency of organic dye-sensitized solar cells employing non-corrosive cobalt redox electrolytes.