Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 109, Issue 38, Pages 15132-15135Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1213646109
Keywords
luminescence; time-resolved spectroscopy; polymer matrix
Categories
Funding
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-FG02-06ER15788, DE-SC0001011]
- National Science Foundation [NSF 957215]
- UNC EFRC: Center for Solar Fuels, an Energy Frontier Research Center
- UNC SERC (Solar Energy Research Center Instrumentation Facility)
- US Department of Energy, Office of Energy Efficiency and Renewable Energy [DE-EE0003188]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0957215] Funding Source: National Science Foundation
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Distance-dependent energy transfer occurs from the Metal-to-Ligand Charge Transfer (MLCT) excited state Ru(bpy)(3)(2+)* to an anthracene-acrylate derivative (Acr-An) incorporated into the polymer network of a semirigid poly(ethyleneglycol) dimethacrylate monolith. Following excitation, Ru(bpy)(3)(2+)* to Acr-An triplet energy transfer occurs followed by long-range, Acr-3An-Acr-An -> Acr-An-Acr-(3)An, energy migration. With methyl viologen dication (MV2+) added as a trap, Acr-(3)An + MV2+ -> Acr-An(+) + MV+ electron transfer results in sensitized electron transfer quenching over a distance of approximately 90 angstrom.
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