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Discrimination between FRET and non-FRET quenching in a photochromic CdSe quantum dot/dithienylethene dye system
Lars Dworak1, Andreas J Reuss, Marc Zastrow
1Institute of Physical and Theoretical Chemistry, Goethe-University Frankfurt/M., Max-von-Laue Str. 7, D 60438 Frankfurt/M, Germany. wveitl@theochem.uni-frankfurt.de.
Nanoscale
|October 29, 2014
Abstract:
A photochromic Förster resonance energy transfer (FRET) system was employed to disentangle the fluorescence quenching mechanisms in quantum dot/photochromic dye hybrids. In the off-state of the dye the main quenching mechanism is FRET whereas the moderate quenching in the on-state is due to non-FRET pathways opened up upon assembly.

