| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide: an electrolyte solution having high energy conversion efficiency even when the additive amount of iodine to electrolyte is greatly reduced, and hardly causing the deterioration of a battery; a photoelectric conversion element using the electrolyte solution; and a dye-sensitized solar cell using the photoelectric conversion element. <P>SOLUTION: A dye-sensitized solar cell or a photoelectric conversion element includes a semiconductor electrode layer formed of dye-sensitized semiconductor particles, an electrolyte layer and a counter electrode, in the order, on a conductive support. In the dye-sensitized solar cell or the photoelectric conversion element, the electrolyte layer comprises an electrolyte containing: an inorganic salt selected from alkali metal halide, alkaline earth metal halide and ammonium halide and/or a mixture of an imidazolium salt and a benzoimidazole compound, as a solute; and one or both of glycol ether and five-membered ring cyclic ether, as a solvent. The concentration of triiodide ion as a redox pair in the electrolyte is 0-0.05 mol/L. <P>COPYRIGHT: (C)2012,JPO&INPIT |
