Electrochemiluminescence (ECL), an electrogenerated chemiluminescence, is a highly sensitive technique with wide bioanalytical applications that combines the advantages of both electrochemistry and chemiluminescence. Ru(bpy)32+ (bpy = bipyridine) is an ideal photoactive compound to dope into a metal-organic framework (MOF) matrix for potential ECL applications due to their relative long-lived excite states and redox activity. Herein in this work, we designed a zirconium-based metal-organic framework (MOF) with RuDCBPY, [Ru(bpy)2(dcbpy)]2+ (dcbpy = 5,5’-dicarboxy-2,2’-bipyridine), as novel solid-state electrochemiluminescence (ECL) detectors. The RuDCBPY-UiO-67 thin films were solvothermally prepared on conducting fluorine-doped tin oxide (FTO) glass slide 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. Meanwhile a stable ECL response has been observed in RuDCBPY-UiO-67 thin films, which is linear to the concentration of the coreactant, tripropylamine (TPrA). 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.

Ruthenium(II)-polypyridyl doped zirconium(IV) metal-organic frameworks as solid-state electrochemiluminescence detectors

254th National Meeting (2017)

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