Solid-state solar cells co-sensitized with PbS/CdS quantum dots and N719 dye and based on solid polymer electrolyte with binary cations and nanofillers

Co-sensitized solar cells have gained more attention due to the ability of energy conversion process by absorbing photons from wide range spectrum including visible and near-infrared region. TiO2 electrodes were co-sensitized with PbS/CdS core-shell quantum dots N719 dye. PbS/CdS/N719 dye-sensitized fabricated poly(ethylene oxide) based solid polymer electrolyte consisting iodide/triiodide redox couple. The iodide ion conductivity was enhanced incorporating a binary salt mixture different size cations, tetrapropylammonium potassium iodide. performance cell further P90 nanofiller in electrolyte. best solid-state showed significantly higher efficiency 4.41 % short-circuit current density 8.41 mA cm−2, open-circuit voltage 748.3 mV high fill factor 70.16 under simulated light 100 mW cm−2 AM 1.5 filter. This is first report describing enhancement dye sensitized on cation photoanode demonstrating cumulative effect mixed co-sensitization.