摘要： Five 6,6’‐dimethyl‐2,2’‐bipyridine ligands bearing N‐arylmethaniminyl substituents in the 4‐ and 4’‐positions were prepared by Schiff base condensation in which the aryl group is Ph (1), 4‐tolyl (2), 4‐tBuC6H4 (3), 4‐MeOC6H4 (4), and 4‐Me2NC6H4 (5). The homoleptic copper(I) complexes [CuL2][PF6] (L = 1–5) were synthesized and characterized, and the single crystal structure of [Cu(1)2][PF6].Et2O was determined. By using the “surfaces‐as‐ligands, surfaces‐as‐complexes” (SALSAC) approach, the heteroleptic complexes [Cu(6)(Lancillary)]+ in which 6 is the anchoring ligand ((6,6’‐dimethyl‐[2,2’‐bipyridine]‐4,4’‐diyl)bis(4,1‐phenylene))bis(phosphonic acid)) and Lancillary = 1–5 were assembled on FTO‐TiO2 electrodes and incorporated as dyes into n‐type dye‐sensitized solar cells (DSCs). Data from triplicate, fully‐masked DSCs for each dye revealed that the best‐performing sensitizer is [Cu(6)(1)]+, which exhibits photoconversion efficiencies (η) of up to 1.51% compared to 5.74% for the standard reference dye N719. The introduction of the electron‐donating MeO and Me2N groups (Lancillary = 4 and 5) is detrimental, leading to a decrease in the short‐circuit current densities and external quantum efficiencies of the solar cells. In addition, a significant loss in open‐circuit voltage is observed for DSCs sensitized with [Cu(6)(5)]+, which contributes to low values of η for this dye. Comparisons between performances of DSCs containing [Cu(6)(1)]+ and [Cu(6)(4)]+ with those sensitized by analogous dyes lacking the imine bond indicate that the latter prevents efficient electron transfer across the dye.