Metal-organic frameworks (MOFs) are multidimensional crystalline coordination networks made up of organic ligands attached to metal nodes. Their characteristics, including large surface area and high porosity, have made them an ideal template material for electrochemiluminescence (ECL), a highly sensitive technique that can be used for clinical screening of various antigens and analytes. Herein in this study, we synthesized a zirconium-based MOF (UiO-67) doped with RuDCBPY [Ru(bpy)2(dcbpy)]2+ (dcbpy = 5,5’-dicarboxy-2,2’-bipyridine), a photoactive compound featuring long-lived excited states and redox activity, and used it as a novel solid-state ECL detector. The RuDCBPY-UiO-67 thin films were solvothermally prepared on conductive fluorine-doped tin oxide (FTO) glass slides and characterized by powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM). The redox pair of Ru2+/Ru3+ was well observed in the electrochemistry study, and a stable ECL response has been observed. This work validates the strategy of using UiO-67-RuDCBPY thin films for electrochemiluminescence, and suggests a promising approach for the fabrication of solid-state ECL detectors.

Electrochemiluminescence of Ru doped metal-organic frameworks

256th National Meeting (2018)

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