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The photoelectrochemical properties of the quasi-solid-state dye-sensitized solar cells based on polymer electrolytes consisting of polyethylene oxide (PEO) with the additions of nano-TiO2 and ionic liquid of MPII (1-methyl-3-propylimidazolium iodide) were studied. By using a composite polymer electrolyte of PEO︰LiI︰TiO2︰ MPII︰I2 = 3︰3︰3︰7︰1 (in mol ratio), the solar energy conversion efficiency of 3.2% under 100 mW·cm?2 was ob- tained, which was 8 times higher than that of the cell using polymer electrolyte without any additives. The effect of the additives was attributed to the increase of ionic conductivity of the polymer electrolytes.
The photoelectrochemical properties of the quasi-solid-state dye-sensitized solar cells based on polymer electrolytes consisting of polyethylene oxide (PEO) with the additions of nano-TiO2 and ionic liquid of MPII (1-methyl-3-propylimidazolium iodide) were studied . By using a composite polymer electrolyte of PEO: LiI: TiO 2: MPII: I 2 = 3︰3︰3︰7︰1 in mol ratio, the solar energy conversion efficiency of 3.2% under 100 mW · cm 2 was ob - tained, which was 8 times higher than that of the cell using polymer electrolyte without any additives. The effect of the additives was attributed to the increase of ionic conductivity of the polymer electrolytes.