Afficher la notice abrégée

Fluorescence anisotropy using highly polarized emitting dyes confined inside BNNTs

hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
hal.structure.identifierInstitut d'Optique Graduate School [IOGS]
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
hal.structure.identifierUniversité de Bordeaux [UB]
dc.contributor.authorBADON, A.
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorMARCEAU, J.-B.
hal.structure.identifierÉcole Polytechnique de Montréal [EPM]
dc.contributor.authorALLARD, Charlotte
hal.structure.identifierDMAS, ONERA, Université Paris Saclay [Châtillon]
dc.contributor.authorFOSSARD, Frédéric
hal.structure.identifierUniversité Paris-Saclay, ONERA, CNRS, Laboratoire d'étude des microstructures (LEM)
dc.contributor.authorLOISEAU, Annick
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorCOGNET, L.
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorFLAHAUT, E.
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorRECHER, G.
hal.structure.identifierLaboratoire Charles Coulomb [L2C]
dc.contributor.authorIZARD, N.
hal.structure.identifierDépartement de Chimie [Montréal]
dc.contributor.authorMARTEL, R.
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorGAUFRÈS, E.
dc.date.accessioned2023-05-12T10:29:34Z
dc.date.available2023-05-12T10:29:34Z
dc.date.issued2022-12-20
dc.identifier.issn2051-6347
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181370
dc.description.abstractEnPolarized fluorescence emission of nanoscale emitters has been extensively studied for applications such as bioimaging, display, and optical communication. Extending the polarization properties in large assemblies of compact emitters is, however, challenging because of self-aggregation processes, which can induce depolarization effects, quenching, and cancellations of molecular dipoles. Here we use a-sexithiophene (6T) molecules confined inside boron nitride nanotubes (6T@BNNTs) to induce fluorescence anisotropy in a transparent host. The experiments first indicate that individual 6T@BNNTs exhibit a high polarization extinction ratio, up to 700, at room temperature. Using aberration- corrected HRTEM, we show that the fluorescence anisotropy is consistent with a general alignment of encapsulated 6T molecules along the nanotube axis. The molecular alignment is weakly influenced by the nanotube diameter, a phenomenon ascribed to stronger molecule-to-sidewall interactions compared to intermolecular interactions. By stretching a flexible thin film made of transparent polymers mixed with 6T@BNNTs, we induce a macroscopic fluorescence anisotropy within the film. This work demonstrates that the dyes@BNNT system can be used as an easy-to-handle platform to induce fluorescence anisotropy in photonic materials.
dc.language.isoen
dc.publisherthe Royal Society of Chemistry
dc.subjectNANOTUBES NITRURE BORE
dc.subjectANISTROPIE DE FLUORESCENCE
dc.subjectENCAPSULATION
dc.subjectCOLORANTS
dc.subject.enboron nitride nanotubes
dc.subject.enfluorescence anisotropy
dc.subject.enencapsulation
dc.subject.endyes molecules
dc.title.enFluorescence anisotropy using highly polarized emitting dyes confined inside BNNTs
dc.typeArticle de revue
dc.identifier.doi10.1039/d2mh01239a
dc.subject.halPhysique [physics]
dc.subject.halSciences de l'ingénieur [physics]
bordeaux.journalMaterials Horizons
bordeaux.page983-992
bordeaux.volume10
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue3
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-03945695
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03945695v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20Horizons&rft.date=2022-12-20&rft.volume=10&rft.issue=3&rft.spage=983-992&rft.epage=983-992&rft.eissn=2051-6347&rft.issn=2051-6347&rft.au=BADON,%20A.&MARCEAU,%20J.-B.&ALLARD,%20Charlotte&FOSSARD,%20Fr%C3%A9d%C3%A9ric&LOISEAU,%20Annick&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée