Selective population of triplet excited ...
Type de document :
Article dans une revue scientifique: Article original
PMID :
URL permanente :
Titre :
Selective population of triplet excited states in heavy-atom-free BODIPY-C <sub>60</sub> based molecular assemblies.
Auteur(s) :
Fatima, Anam [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Rabah, Jad [Auteur]
Institut Lavoisier de Versailles [ILV]
Allard, E. [Auteur]
Institut Lavoisier de Versailles [ILV]
Fensterbank, H. [Auteur]
Institut Lavoisier de Versailles [ILV]
Wright, K. [Auteur]
Institut Lavoisier de Versailles [ILV]
Burdzinski, G. [Auteur]
Faculty of Physics [Poznań]
Clavier, G. [Auteur]
Photophysique et Photochimie Supramoléculaires et Macromoléculaires [PPSM]
Sliwa, Michel [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Pino, T. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Méallet-Renault, R. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Steenkeste, K. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Ha-Thi, M. H. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Rabah, Jad [Auteur]
Institut Lavoisier de Versailles [ILV]
Allard, E. [Auteur]
Institut Lavoisier de Versailles [ILV]
Fensterbank, H. [Auteur]
Institut Lavoisier de Versailles [ILV]
Wright, K. [Auteur]
Institut Lavoisier de Versailles [ILV]
Burdzinski, G. [Auteur]
Faculty of Physics [Poznań]
Clavier, G. [Auteur]
Photophysique et Photochimie Supramoléculaires et Macromoléculaires [PPSM]
Sliwa, Michel [Auteur]

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Pino, T. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Méallet-Renault, R. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Steenkeste, K. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Ha-Thi, M. H. [Auteur]
Institut des Sciences Moléculaires d'Orsay [ISMO]
Titre de la revue :
Photochemical & Photobiological Sciences
Nom court de la revue :
Photochem Photobiol Sci
Date de publication :
2022-05-27
ISSN :
1474-9092
Mot(s)-clé(s) en anglais :
Transient absorption
Triplet lifetime
Fluorescence lifetime
Triplet formation quantum yield
Excited state
Triplet state
Fullerene
BODIPY
Triplet lifetime
Fluorescence lifetime
Triplet formation quantum yield
Excited state
Triplet state
Fullerene
BODIPY
Discipline(s) HAL :
Chimie
Physique [physics]/Physique [physics]
Physique [physics]/Physique [physics]
Résumé en anglais : [en]
Photophysical studies on a BODIPY-fullerene-distyryl BODIPY triad (BDP-C60-DSBDP) and its reference dyads (BODIPY-fullerene; BDP-C60 and distyryl BODIPY-fullerene; DSBDP-C60) are presented herein. In the triad, the association ...
Lire la suite >Photophysical studies on a BODIPY-fullerene-distyryl BODIPY triad (BDP-C60-DSBDP) and its reference dyads (BODIPY-fullerene; BDP-C60 and distyryl BODIPY-fullerene; DSBDP-C60) are presented herein. In the triad, the association of the two chromophore units linked by a fullerene moiety leads to strong near UV–Visible light absorption from 300 to 700 nm. The triplet-excited state was observed upon visible excitation in all these assemblies, and shown to be localized on the C60 or BODIPY moieties. Using quantitative nanosecond transient absorption, we provide a complete investigation on the lifetime and formation quantum yield of the triplet-excited state. In the BDP-C60 dyad, the triplet excited state of C60 (τ = 7 ± 1 μs) was obtained with a quantum yield of 40 ± 8%. For the DSBDP-C60 dyad and BDP-C60-DSBDP triad, a longer-lived triplet excited state with a lifetime of around 250 ± 20 μs centered on the DSBDP moiety was formed, with respective quantum yields of 37 ± 8 and 20 ± 4%. Triplet–triplet annihilation up-conversion is characterized in the BDP-C60 dyad and the bichromophoric triad in the presence of perylene and DSBDP-monomer as respective annihilators. The photo-induced formation of a long-lived 3DSBDP* in the triad coupled with panchromatic light absorption offers potential applications as a heavy-atom-free organic triplet photosensitizer.Lire moins >
Lire la suite >Photophysical studies on a BODIPY-fullerene-distyryl BODIPY triad (BDP-C60-DSBDP) and its reference dyads (BODIPY-fullerene; BDP-C60 and distyryl BODIPY-fullerene; DSBDP-C60) are presented herein. In the triad, the association of the two chromophore units linked by a fullerene moiety leads to strong near UV–Visible light absorption from 300 to 700 nm. The triplet-excited state was observed upon visible excitation in all these assemblies, and shown to be localized on the C60 or BODIPY moieties. Using quantitative nanosecond transient absorption, we provide a complete investigation on the lifetime and formation quantum yield of the triplet-excited state. In the BDP-C60 dyad, the triplet excited state of C60 (τ = 7 ± 1 μs) was obtained with a quantum yield of 40 ± 8%. For the DSBDP-C60 dyad and BDP-C60-DSBDP triad, a longer-lived triplet excited state with a lifetime of around 250 ± 20 μs centered on the DSBDP moiety was formed, with respective quantum yields of 37 ± 8 and 20 ± 4%. Triplet–triplet annihilation up-conversion is characterized in the BDP-C60 dyad and the bichromophoric triad in the presence of perylene and DSBDP-monomer as respective annihilators. The photo-induced formation of a long-lived 3DSBDP* in the triad coupled with panchromatic light absorption offers potential applications as a heavy-atom-free organic triplet photosensitizer.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
CNRS
Collections :
Date de dépôt :
2024-02-28T22:27:15Z
2024-03-19T09:42:50Z
2024-03-19T09:42:50Z
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