Mohboobeh Rafieepoor Chirani - Department of Chemistry, Amirkabir University of Technology, Tehran, Iran
Elaheh Kowsari - Department of Chemistry, Amirkabir University of Technology, Tehran, Iran

An ionic liquid electrolyte composed of 1-methyl-3-propylimidazolium iodide, N-methylbenzimidazole, and lithium iodide (LiI) was combined with propylene carbonate as solvent has been studied. Its desirable properties comprise non-flammability, non-volatility, and electrochemical stability as well as cells applied ionic liquids displayed good long term and thermal stability. The connection of various photovoltaic performance parameters (Voc, Jsc, f f, η) of DSSCs were investigated in several concentration of ionic liquid. Investigation on the photovoltaic performances of these DSSCs displayed that the fill factor (FF) could reach up to 0.69 and energy conversion efficiency (η) could reach up to 3.64% at an irradiance of air mass 1.5 (AM 1.5, 100 mW cm-2)

Binary ionic liquids, Electrolyte, Dye-sensitized solar cells (DSSCs), Carbonate solvent