Abstract:
Disclosed is a binuclear ruthenium complex dye which has a higher absorption coefficient and exhibits light absorbing power even in a longer wavelength region and which makes it possible to provide a photoelectric conversion element and a photochemical cell that can perform the conversion of sunlight into electricity over a wide wavelength region and with high photoelectric conversion efficiency. Also disclosed is a binuclear ruthenium complex dye which makes it possible to provide a photoelectric conversion element and a photochemical cell that exhibit high durability.
Abstract:
The photochemical cell of the present invention comprises a semiconductor particle sensitized with a binuclear metal complex dye, which has a high absorption coefficient and an excellent electron transfer property, and an electrolyte solution comprising an ionic liquid as the major component. The photochemical cell is superior in durability.
Abstract:
Disclosed is a process for production of an asymmetric binuclear metal complex represented by the general formula: (L 1 ) 2 M 1 (BL)M 2 (L 2 ) 2 (X) n wherein M 1 and M 2 , which may be the same as or different from each other, represent a transition metal; L 1 and L 2 , which are different from each other, represent a chelate ligand capable of multidentate coordination and two L 1 s may be different from each other and two L 2 s may be different from each other; BL represents a bridging ligand having at least two cyclic structures each containing a hetero atom, the hetero atoms contained in the cyclic structures being ligand atoms coordinating to M 1 and M 2 ; X represents a counter ion; and n is the number of counter ions needed to neutralize the charge of the complex. In the process, the binuclear metal complex is isolated by adjusting the pH of the solution containing the binuclear metal complex to a value higher than 2.5. The binuclear metal complex obtained may be used as a dye to produce a photoelectric conversion element and a photochemical battery having higher photoelectric conversion efficiency and higher durability.
Abstract:
A dye consisting of a binuclear ruthenium complex having substituted bipyridyl groups, said binuclear ruthenium complex being represented by general formula (1) [wherein R, R, R and R are each independently straight-chain or branched C alkyl, with the proviso that R and/or R is straight-chain or branched C alkyl and R and/or R is straight-chain or branched C alkyl; X is a counter ion; and n represents the number of counter ions that is necessary to neutralize the electric charge of the complex, with the proviso that the proton (H) of one or more of the carboxyl (-COOH) groups may be in a dissociated state].
Abstract:
The present invention relates to a binuclear ruthenium complex dye represented by the following general formula (1-1): wherein R 01 represents a linear or branched alkyl group having 2 to 18 carbon atoms; X represents a counter ion; and n represents a number of the counter ions needed to neutralize a charge of the complex; and in which proton(s) (H + ) of one or more carboxyl groups (-COOH) may dissociate.
Abstract:
Disclosed is a process for production of an asymmetric binuclear metal complex represented by the general formula: (L 1 ) 2 M 1 (BL)M 2 (L 2 ) 2 (X) n wherein M 1 and M 2 , which may be the same as or different from each other, represent a transition metal; L 1 and L 2 , which are different from each other, represent a chelate ligand capable of multidentate coordination and two L 1 s may be different from each other and two L 2 s may be different from each other; BL represents a bridging ligand having at least two cyclic structures each containing a hetero atom, the hetero atoms contained in the cyclic structures being ligand atoms coordinating to M 1 and M 2 ; X represents a counter ion; and n is the number of counter ions needed to neutralize the charge of the complex. In the process, the binuclear metal complex is isolated by adjusting the pH of the solution containing the binuclear metal complex to a value higher than 2.5. The binuclear metal complex obtained may be used as a dye to produce a photoelectric conversion element and a photochemical battery having higher photoelectric conversion efficiency and higher durability.