Title :

Dynamics of the energy transfer involved in a diarylethene-perylenebisimide dyad: comparison between the molecule and the nanoparticle level.

Author(s) :

Fabre, N. [Auteur]
Fukaminato, T. [Auteur]
Brosseau, A. [Auteur]
Sliwa, Michel [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Métivier, R. [Auteur]
Photophysique et Photochimie Supramoléculaires et Macromoléculaires [PPSM]

Journal title :

Photochemical & Photobiological Sciences

Abbreviated title :

Photochem Photobiol Sci

Publication date :

2023-03-23

ISSN :

1474-9092

English keyword(s) :

Perylenebisimide
Diarylethene
Photodynamics
FRET
Fluorescence
Photochromism

HAL domain(s) :

Chimie/Chimie théorique et/ou physique

English abstract : [en]

Photochromic materials are widely used to achieve fluorescence photoswitching. Understanding the energy transfer processes occurring in these systems would be an advantage for their use and better optimization of their ...
Show more >Photochromic materials are widely used to achieve fluorescence photoswitching. Understanding the energy transfer processes occurring in these systems would be an advantage for their use and better optimization of their properties. In this scope, we studied a diarylethene-perylenebisimide (DAE-PBI) dyad that presents a bright red emission and a large ON–OFF contrast, both in solution and in an aqueous suspension of nanoparticles (NPs). Using ultrafast transient absorption spectroscopy, the excited state dynamics was characterized for this dyad in THF solution and compared to its behavior in NPs state. An efficient energy transfer process between the PBI fluorophore and the DAE photochromic unit in its closed form was demonstrated, occurring in a few hundreds of femtoseconds.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Submission date :

2024-02-28T22:12:18Z
2024-03-11T15:24:27Z