PHOTOELECTRIC CONVERSION ELEMENT, PHOTOELECTROCHEMICAL CELL, AND DYE USED IN THE SAME

• Main Authors: USU TATSUYA, SATO HIROTAKA, KOBAYASHI KATSU
• Format: Patent
• Language: English
• Published: 17.01.2013
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HETEROCYCLIC COMPOUNDS; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC CHEMISTRY; 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 photoelectric conversion element and a photoelectrochemical cell which exhibit high IPCE and achieve high photoelectric conversion efficiency in a wavelength region exceeding 800 nm and also excel in durability, and a dye used therein.SOLUTION: In the photoelectric conversion element, at least one kind of dyes adsorbed to an electrode has a structure expressed by the formula (1) below. (In the formula, Q represents an aromatic ring; X, Xrepresent a sulfur atom, selenium atom, oxygen atom or CRR, where R, Rrepresent alkyl groups; R, R' are alkyl or aromatic groups; Prepresents a specific atom group; P, unlike P, represents a specific atom group needed to form a polymethine dye; Wrepresents a counter ion when needed to neutralize a charge.)