Ruthenium complex useful as sensitizer, dye-sensitized oxide semiconductor electrode and solar cell using same
US6639073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Mar 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ruthenium complex represented by the following formula:RuL1L2Xwherein L1 represents a 2,2′;6′,2″-terpyridine compound having at least one group selected from a carboxyl group, a salt of a carboxyl group, a sulfonic acid group, a salt of a sulfonic acid group, a phosphoric acid group and a salt of a phosphoric acid group, L2 represents a diketonate ligand represented by the following formula: wherein R1 and R2 are independently selected from alkyl, alkoxyalkyl, aminoalkyl, perfluoroalkyl and aryl, R3 represents a hydrogen atom, alkyl, alkoxyalkyl, aminoalkyl, perfluoroalkyl and aryl and X represents a monodentate ligand selected from a halide, a cyano group, a thiocyano group and a thiolate. A dye-sensitized oxide semiconductor electrode includes an electrically conductive body, an oxide semiconductor film provided on a surface of the electrically conductive body, and the above metal complex. A solar cell may be constructed from the above dye-sensitized oxide semiconductor electrode, a counter electrode, and a redox electrolyte contacting with both electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.