Dragonetti Claudia, Magni Mirko, Colombo Alessia, Fagnani Francesco, Roberto Dominique, Melchiorre Fabio, Biagini Paolo, Fantacci Simona
Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy.
Dalton Trans. 2019 Jul 2;48(26):9703-9711. doi: 10.1039/c9dt00790c.
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.
制备并充分表征了两种新型的异质结铜（I）敏化剂，它们带有6,6'-二甲基-2,2'-联吡啶-4,4'-二苯甲酸以将染料锚定在二氧化钛表面，以及一个π-离域的2-（R-苯基）-1H-菲并[9,10-d]咪唑（R = NPh2或O-己基）辅助配体。当使用常见的I⁻/I₃⁻氧化还原对或均配铜配合物作为电子穿梭体时，它们作为染料敏化太阳能电池（DSSC）中的染料的性能与带有2,9-二甲基菲咯啉作为辅助配体的相关配合物相当。实验结果以及理论计算证实了全铜染料敏化太阳能电池的巨大潜力。
