NOVELTY - Manufacturing photoelectric conversion electrode (11) involves preparing substrate (12); first electrolytic deposition step of forming underlayer (13) of metal oxide by using electrolyte having metal salt; and second electrolytic deposition step of depositing metal oxide and co-adsorbing template dye by using electrolyte having metal salt/dye to form metal oxide layer (14) on underlayer, where first step sets electrolysis potential to less than or equal to potential of flection point having minimum potential among several flection points observed in 0 to -1.5 V (versus Ag/AgCl) in current-potential profile.    USE - As a method of manufacturing a photoelectric conversion electrode used in dye-sensitized solar cell (claimed); in photoelectric conversion element, electronic and electric materials and devices, apparatuses, equipments and systems.    ADVANTAGE - The electrode has excellent dye replacement property and capability of improving mechanical strength and photoelectric conversion efficiency. The electrode improves cell characteristics of solar cell in which the electrode is used. The electrode and cell can be easily manufactured with good reproducibility. The electrode exhibits improved productivity and economical efficiency and hence can be used as electrode for photoelectric conversion element, electronic and electric materials and devices, apparatuses, equipments and systems.    DETAILED DESCRIPTION - Manufacturing method of a photoelectric conversion electrode (11) involves preparing a substrate (12); a first electrolytic deposition step of forming, on the substrate, an underlayer (13) containing a metal oxide by an electrolytic deposition process using an electrolyte containing at least a metal salt; and a second electrolytic deposition step of electrolytically depositing a metal oxide and co-adsorbing a template dye by an electrolytic deposition process using an electrolyte containing at least the metal salt and the template dye, to form a metal oxide layer (14) on the underlayer, where the first electrolytic deposition step sets an electrolysis potential to less than or equal to a potential of a flection point having a minimum potential among several flection points observed in 0 to -1.5 V (versus Ag/AgCl) in a current-potential profile during electrolytic deposition. The manufacturing method further involves a dye desorption step of desorbing the template dye co-adsorbed on the metal oxide layer; and a dye re-adsorption step of allowing the metal oxide layer to support a second dye different from the template dye. INDEPENDENT CLAIMS are included for the following:    (1) a photoelectric conversion electrode comprising a substrate; an underlayer formed on the substrate and containing a metal oxide; and a metal oxide layer formed on the underlayer and including the metal oxide and a dye, where the underlayer has a structure in which pointed crystal particles of the metal oxide are piled up in a layer thickness direction. The metal oxide layer has several bump-like protrusions formed so as to radially protrude from the side of the underlayer; and    (2) a dye-sensitized solar cell comprising photoelectric conversion electrode including a substrate, an underlayer formed on the substrate and containing a metal oxide, and a metal oxide layer formed on the underlayer and including a metal oxide and a dye; a counter electrode disposed so as to face the photoelectric conversion electrode; and a charge transport layer disposed between the photoelectric conversion electrode and the counter electrode, where the underlayer has a structure in which pointed crystal particles of the metal oxide are piled up in a layer thickness direction.    DESCRIPTION OF DRAWING(S) - The figure shows schematic sectional view of photoelectric conversion electrode.    Photoelectric conversion electrode (11)    Substrate (12)    Conductive surface (12a)    Underlayer (13)    Zinc oxide crystal particles (13a)    Metal oxide layer. (14)