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Title: Intermittent Single-Molecule Interfacial Electron Transfer Dynamics

Abstract

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.

Authors:
; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
860027
Report Number(s):
PNNL-SA-40763
Journal ID: ISSN 0002-7863; JACSAT; 6506; 6510; KC0301020; TRN: US0504844
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of the American Chemical Society, 126(30):9374-9381
Additional Journal Information:
Journal Volume: 126; Journal Issue: 30; Journal ID: ISSN 0002-7863
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COUMARIN; DYES; ELECTRON TRANSFER; FLUCTUATIONS; FLUORESCENCE; MICROSCOPY; PHOTONS; TRAJECTORIES; Environmental Molecular Sciences Laboratory

Citation Formats

Biju, Vasudevan P., Micic, Miodrag, Hu, Dehong, and Lu, H. Peter. Intermittent Single-Molecule Interfacial Electron Transfer Dynamics. United States: N. p., 2004. Web. doi:10.1021/ja040057b.
Biju, Vasudevan P., Micic, Miodrag, Hu, Dehong, & Lu, H. Peter. Intermittent Single-Molecule Interfacial Electron Transfer Dynamics. United States. doi:10.1021/ja040057b.
Biju, Vasudevan P., Micic, Miodrag, Hu, Dehong, and Lu, H. Peter. Wed . "Intermittent Single-Molecule Interfacial Electron Transfer Dynamics". United States. doi:10.1021/ja040057b.
@article{osti_860027,
title = {Intermittent Single-Molecule Interfacial Electron Transfer Dynamics},
author = {Biju, Vasudevan P. and Micic, Miodrag and Hu, Dehong and Lu, H. Peter},
abstractNote = {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.},
doi = {10.1021/ja040057b},
journal = {Journal of the American Chemical Society, 126(30):9374-9381},
issn = {0002-7863},
number = 30,
volume = 126,
place = {United States},
year = {2004},
month = {8}
}