Intermittent Single-Molecule Interfacial Electron Transfer Dynamics
Journal Article
·
· Journal of the American Chemical Society, 126(30):9374-9381
We report on single molecule studies of photosensitized interfacial electron transfer (ET) processes in Coumarin 343 (C343)-TiO2 nanoparticle (NP) and Cresyl Violet (CV+)-TiO2 NP systems, using time-correlated single photon counting coupled with scanning confocal fluorescence microscopy. Fluorescence intensity trajectories of individual dye molecules adsorbed on a semiconductor NP surface showed fluorescence fluctuations and blinking, with time constrants distributed from sub-milliseconds to several seconds.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 860027
- Report Number(s):
- PNNL-SA-40763; 6506; 6510; KC0301020
- Journal Information:
- Journal of the American Chemical Society, 126(30):9374-9381, Journal Name: Journal of the American Chemical Society, 126(30):9374-9381 Journal Issue: 30 Vol. 126; ISSN JACSAT; ISSN 0002-7863
- Country of Publication:
- United States
- Language:
- English
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