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Merck
CN

Towards efficient sustainable full-copper dye-sensitized solar cells.

Dalton transactions (Cambridge, England : 2003) (2019-04-11)
Claudia Dragonetti, Mirko Magni, Alessia Colombo, Francesco Fagnani, Dominique Roberto, Fabio Melchiorre, Paolo Biagini, Simona Fantacci
ABSTRACT

Two new heteroleptic copper(i) sensitizers bearing 6,6'-dimethyl-2,2'-bipyridine-4,4'-dibenzoic acid, to anchor the dye on the titania surface, and a π-delocalized 2-(R-phenyl)-1H-phenanthro[9,10-d]imidazole (R = NPh2 or O-hexyl) ancillary ligand were prepared and well characterized. Their performance as dyes in DSSCs is quite similar to that of the related complex bearing 2,9-dimesityl-1,10-phenanthroline as an ancillary ligand, when using the common I-/I3- redox couple or homoleptic copper complexes as electron shuttles. The experimental results along with theoretical calculations confirm the great potential of full-copper DSSCs.