Amplified Luminescence Quenching of Phosphorescent Metal–Organic Frameworks

Journal Article · Wed Feb 22 00:00:00 EST 2012 · Journal of the American Chemical Society

DOI:https://doi.org/10.1021/ja211271m· OSTI ID:1387111

Kent, Caleb A. ^[1]; Liu, Demin ^[1]; Meyer, Thomas J. ^[1]; Lin, Wenbin ^[1]

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1. Department of Chemistry, CB#3290, University of North Carolina, Chapel Hill, North Carolina 27599, United States

Amplified luminescence quenching has been demonstrated in metal–organic frameworks (MOFs) composed of Ru(II)-bpy building blocks with long-lived, largely triplet metal-to-ligand charge-transfer excited states. Strong non-covalent interactions between the MOF surface and cationic quencher molecules coupled with rapid energy transfer through the MOF microcrystal facilitates amplified quenching with a 7000-fold enhancement of the Stern–Völmer quenching constant for methylene blue compared to a model complex.

• Research Organization: Energy Frontier Research Centers (EFRC) (United States). Center for Solar Fuels (UNC EFRC)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• DOE Contract Number: SC0001011
• OSTI ID: 1387111
• Journal Information: Journal of the American Chemical Society, Vol. 134, Issue 9; Related Information: UNC partners with University of North Carolina (lead); Duke University; University of Florida; Georgia Institute of Technology; University; North Carolina Central University; Research Triangle Institute; ISSN 0002-7863
• Publisher: American Chemical Society (ACS)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
catalysis (homogeneous)
catalysis (heterogeneous)
solar (photovoltaic)
solar (fuels)
photosynthesis (natural and artificial)
hydrogen and fuel cells
electrodes - solar
charge transport
materials and chemistry by design
synthesis (novel materials)
synthesis (self-assembly)