TITANIUM OXIDE FOR DYE-SENSITIZED SOLAR CELLS

• Main Authors: KOGOI HISAO, TANAKA JUN, KAYAMA SUSUMU
• Format: Patent
• Language: English
• Published: 30.06.2005
• Edition: 7
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; COMPOUNDS THEREOF; DYES; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; NON-METALLIC ELEMENTS; PAINTS; PERFORMING OPERATIONS; POLISHES; PREPARATION OF CARBON BLACK; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES

A dye sensitized solar cell comprising, as the dye electrode, a titanium oxide structure having an optical band gap (hereinafter referred to as "BG") of 2.7 to 3.1 eV as calculated from absorbance measured by an integrating sphere-type spectrophotometer, or a metal oxide structure obtained by dry-mixing a plurality of metal oxide powder particles differing in the particle size or a metal oxide dispersion thereof, wherein assuming that the BG of raw material metal oxide is BG0 and the BG of metal oxide after the dry mixing is BG1, the (BG0 - BG1) is from 0.01 to 0.45 eV; and a production method thereof are provided.