Journal article
Suppressing Förster resonance energy transfer between organic dyes on a cosensitized metal oxide surface
V Dryza, EJ Bieske
Journal of Physical Chemistry C | AMER CHEMICAL SOC | Published : 2014
DOI: 10.1021/jp506392u
Abstract
Time-resolved fluorescence spectroscopy is used to investigate the efficiency of Förster resonance energy transfer (FRET) between two different types of organic dye sensitizers bound to zirconia nanoparticles. The cosensitization scheme involves using the IR125 dye as the FRET acceptor and either the D149 dye or D35 dye as the FRET donor, with the FRET parameters determined by monitoring the donor dye's excited state lifetime in the absence and presence of the acceptor dye. The FRET rate is found to be faster for the D149+IR125 pair than for the D35+IR125 pair. From the FRET quantum yields, the Förster distances for the D149+IR125 and D35+IR125 pairs are estimated to be 3.5 and 2.6 nm, respe..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
This research was supported under the Australian Research Council's Discovery Project funding scheme (Project Number DP120100100). V. Dryza acknowledges an Australian Renewable Energy Agency Postdoctoral Fellowship (6-F004) and support from the University of Melbourne's Early Career Researcher Grant Scheme. The picosecond laser was kindly provided by K. P. Ghiggino and T. A. Smith. The computational portion of this research was undertaken with the assistance of resources provided at the NCI National Facility through the National Computational Merit Allocation Scheme supported by the Australian Government.