Two new self-assemblies of two zinc porphyrin with isonicotinic acid by metal-ligand axial coordination and their applications in supramolecular solar cell

Two new self-assemblies based on two zinc porphyrins bound to isonicotinic acid by metal-ligand axial coordination. The UV-vis absorption spectra, fluorescence spectra, and the photovoltaic performance of these photosynthesis devices are also described. Our results reveal that these photosynthesis devices enable attainment of impressive improvement in photocurrent response, especially for the assembly based on the substituent of phenol over the assembly substituted with benzimidazyl. Additionally, the molecular orbital (MO) patterns and HOMO-LUMO energy gaps of these assemblies are also studied to further demonstrate these experimental products.