PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTROCHEMICAL BATTERY USING THE SAME, AND PHOTOELECTRIC CONVERSION ELEMENT COMPOSITION

• Main Authors: USU TATSUYA, KIMURA KEIZO, KOBAYASHI KATSU
• Format: Patent
• Language: English
• Published: 23.02.2012
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; POLISHES; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a photoelectrochemical battery using a photoelectric conversion element having a high photoelectric conversion efficiency and a high durability, and to provide a photoelectric conversion element composition.SOLUTION: A photoelectric conversion element has a photoreceptor layer having a composite sensitized dye containing a dye represented by the following general formula (1) and a dye represented by a general formula (2): Mz(LL)(LL)(X).CI, and semiconductor fine particles. (In the general formula (1), X represents a non-metal atom group required for forming a nitrogen-containing five-membered ring or a nitrogen-containing six-membered ring or a nitrogen-containing seven-membered ring, Y represents a dye residue, Z represents a substituent group, m represents zero or a positive integer, and Rrepresents a specific heterocyclic group.) (In the general formula (2), Mz represents a metal atom, LLand LLrepresent specific ligands, X represents a specific ligand, and CI represents a counter ion in the case that the counter ion is required for neutralizing an electric charge.)