Abstract: A photoelectric conversion element comprising; a conductive layer, a porous semiconductor layer disposed on the conductive layer, a counter electrode facing the porous semiconductor layer, a dye included in the porous semiconductor layer, a electrolyte filling a space between the porous semiconductor and the counter electrode, I-/I3-based redox species and an additive included in the electrolyte, wherein the additive is at least one selected from group consisting of pyrazole and pyrazole derivative, which have two lone pairs of nitrogen atoms in pyrazol ring when the additives dissolved in the electrolyte.

Abstract: In a photoelectric conversion element, a conductive layer, a photoelectric conversion layer, and a counter electrode are disposed, and at least the photoelectric conversion layer is filled with an electrolyte. In the photoelectric conversion layer, at least one of a dye formed of a compound having one thiocyanate group and a dye formed of a compound not having a thiocyanate group is adsorbed onto a porous semiconductor layer formed of a semiconductor material. The electrolyte includes at least one of pyrazole and a pyrazole derivative.