Towards efficient sustainable full-copper dye-sensitized solar cells

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)-1 H -phenanthro[9,10- d ]imidazole (R = NPh 2 or O-hexyl) ancillary ligand were prepared and well characterized. Their pe...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2019-07, Vol.48 (26), p.973-9711
Main Authors: Dragonetti, Claudia, Magni, Mirko, Colombo, Alessia, Fagnani, Francesco, Roberto, Dominique, Melchiorre, Fabio, Biagini, Paolo, Fantacci, Simona
Format: Article
Language:English
Subjects:
Bearing
Coordination compounds
Copper
Copper compounds
Dye-sensitized solar cells
Dyes
Imidazole
Ligands
Mass spectra
NMR
Nuclear magnetic resonance
Photovoltaic cells
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Summary: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)-1 H -phenanthro[9,10- d ]imidazole (R = NPh 2 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 − /I 3 − redox couple or homoleptic copper complexes as electron shuttles. The experimental results along with theoretical calculations confirm the great potential of full-copper DSSCs. Two new heteroleptic copper( i ) sensitizers with π-delocalized ancillary ligands for full copper DSSCs.
ISSN:1477-9226
1477-9234
DOI:10.1039/c9dt00790c