Discrimination between FRET and non-FRET quenching in a photochromic CdSe quantum dot/dithienylethene dye systemElectronic supplementary information (ESI) available: QD and DTE synthesis, preparation of the DTE/QD coupled system, TEM image of the nanocrystals and experimental details. See DOI: 10.1039/c4nr05144k

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...

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Bibliographic Details
Main Authors Dworak, Lars, Reuss, Andreas J, Zastrow, Marc, Rück-Braun, Karola, Wachtveitl, Josef
Format Journal Article
LanguageEnglish
Published 06.11.2014
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Summary: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. Reversible switching between the FRET and the non-FRET state in a highly defined nanostructure composed of CdSe quantum dots and a photoswitch is reported.
Bibliography:10.1039/c4nr05144k
Electronic supplementary information (ESI) available: QD and DTE synthesis, preparation of the DTE/QD coupled system, TEM image of the nanocrystals and experimental details. See DOI
ISSN:2040-3364
2040-3372
DOI:10.1039/c4nr05144k