METHOD FOR MANUFACTURING PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTRIC CONVERSION ELEMENT AND PHOTOELECTROCHEMICAL CELL

{Problems} To provide a method of producing a photoelectric conversion element which exhibits high conversion efficiency and excellent durability, a photoelectric conversion element, and a photoelectrochemical cell. {Means to solve} A method of producing a photoelectric conversion element, which contains an electrically conductive support, a photosensitive layer having porous semiconductor fine particles that have adsorbed a dye formed on the electrically conductive support, a charge transfer layer; and a counter electrode; containing the steps of: applying a dispersion liquid, in which the content of solids excluding semiconductor fine particles is 1% by mass or less based on the total amount of the semiconductor fine particle dispersion liquid, on the electrically conductive support, to form a coating; heating the coating, to obtain porous semiconductor fine particles; and sensitizing the porous semiconductor fine particles by a dye having a structure represented by Formula (1): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒM(LL 1 )m 1 (LL 2 )m 2 (X)m 3 €¢CI€ƒ€ƒ€ƒ€ƒ€ƒFormula (1) wherein M represents a metal atom, LL 1 is a bidentate or terdentate ligand having a specific structure, and LL 2 is a bidentate or terdentate ligand having a specific structure.