Guanidinium Iodides-based Ionic Liquids:Synthesis and Application for Dye-sensitized Solar Cells(DSSCs)

A series of guanidinium ionic liquids(GILs) was designed,synthesized,and used as electrolytes for dye-sensitized solar cells(DSSCs).The effect of electrolytes containing GILs on the photovoltaic performance of DSSCs was investigated.It is demonstrated that these GILs are promising for being used as electrolytes for DSSCs and a conversion efficiency of 4.1% can be obtained under AM 1.5 sun light irradiation.