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Clay Nanoparticle-Supported Single-Molecule Fluorescence Spectroelectrochemistry

Journal Article · · Nano Letters, 9(2):655-658
DOI:https://doi.org/10.1021/nl802998e· OSTI ID:950156
We report single-molecule fluorescence spectroelectrochemistry on a clay-modified ITO electrode using cresyl violet as a redox fluorescent probe. Ensemble averaged experiments show that cresyl violet displays well-defined cyclic voltammograms when adsorbed on the clay-modified electrode. By probing the fluorescence intensity of a single cresyl violet molecule absorbed on clay surface, we can trace the redox reaction of individual molecules induced by the cyclic voltammetric potential scanning. Inhomogeneous interfacial electron transfer dynamics of the immobilized single cresyl violet molecules on the clay-modified surface were observed.
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:
950156
Report Number(s):
PNNL-SA-61456; 25669; KC0304000
Journal Information:
Nano Letters, 9(2):655-658, Journal Name: Nano Letters, 9(2):655-658 Journal Issue: 2 Vol. 9
Country of Publication:
United States
Language:
English

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