Authors
Gwénaëlle Lamri, Artur Movsesyan, Edite Figueiras, Jana B. Nieder, Jean Aubard, Pierre-Michel Adam, Christophe Couteau, Nordin Felidj, Anne-Laure Baudrion,
Title
Photochromic control of a plasmon-quantum dots coupled system
In
Nanoscale
Volume
11
Pages
258–265
Publisher
Royal Society of Chemistry
Year
2019
Indexed by
Abstract
The control of quantum dot (QD) photoluminescence (PL) is a challenge for many applications. It is well known that plasmonic resonances can enhance this PL. In this work, we couple QDs with silver nanoparticles and immerse the system in a photochromic organic material. As these molecules are optical switches going from a transparent to a colored isomer by absorbing UV light, we observe on one hand a Förster Resonant Energy Transfer (FRET) between the QD emission and the absorbing isomer and on the other hand a plasmonic PL enhancement. The photochromic transition leads to the optical control of the FRET, allowing us to control the QD de-excitation preferences (radiative or non-radiative) and so the emitted light.
Affiliations
Offprint