▎ 摘　　要

In this study, a newly synthesized macrocyclic copper complex, [Cu(C10H20N8)(C4H8N4)](BF4)(2), was used for a reaction with graphene oxide. Macrocyclic copper complex/graphene-based composite materials were prepared and applied to the counter electrodes (CEs) of dye-sensitized solar cells (DSSCs). As the level of the macrocyclic copper complex increased, the catalytic sites on the surface of the CE increased. The results showed that the device efficiency of the composite GO/Cu (1:10) CE was 7.61%, which was better than that of the Platinum (Pt) CE (7.04%). The device efficiency of the DSSC was enhanced effectively because the electrocatalytic activity of the CE was enhanced, and the interface impedance of the device was reduced. Therefore, the macrocyclic copper complex/graphene-based composite materials may have the potential to replace traditional Pt to increase efficiency and reduce the fabrication cost of DSSCs.