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Designed Long-Lived Emission from CdSe Quantum Dots through Reversible Electronic Energy Transfer with a Surface-Bound Chromophore

hal.structure.identifierCenter for Light Activated Nanostructures [Bologna] [CLAN]
hal.structure.identifierDipartimento di Scienze e Tecnologie Agroalimentari
dc.contributor.authorROSA, Marcello
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDENISOV, Sergey
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorJONUSAUSKAS, Gediminas
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorMCCLENAGHAN, Nathan
hal.structure.identifierCenter for Light Activated Nanostructures [Bologna] [CLAN]
hal.structure.identifierDipartimento di Scienze e Tecnologie Agroalimentari
dc.contributor.authorCREDI, Alberto
dc.date.created2017-12-04
dc.date.issued2018
dc.identifier.issn1433-7851
dc.description.abstractEnThe size-tunable emission of luminescent quantum dots (QDs) makes them highly interesting for applications that range from bioimaging to optoelectronics. For the same applications, engineering their luminescence lifetime, in particular, making it longer, would be as important; however, no rational approach to reach this goal is available to date. We describe a strategy to prolong the emission lifetime of QDs through electronic energy shuttling to the triplet excited state of a surface-bound molecular chromophore. To implement this idea, we made CdSe QDs of different sizes and carried out self-assembly with a pyrene derivative. We observed that the conjugates exhibit delayed luminescence, with emission decays that are prolonged by more than 3 orders of magnitude (lifetimes up to 330 µs) compared to the parent CdSe QDs. The mechanism invokes unprecedented reversible quantum dot to organic chromophore electronic energy transfer.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/
dc.title.enDesigned Long-Lived Emission from CdSe Quantum Dots through Reversible Electronic Energy Transfer with a Surface-Bound Chromophore
dc.typeArticle de revue
dc.identifier.doi10.1002/anie.201712403
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
dc.description.sponsorshipEuropeLight effected autonomous molecular pumps: Towards active transporters and actuating materials
dc.description.sponsorshipEuropeHybrid Molecule-Nanocrystal Assemblies for Photonic and Electronic Sensing Applications
bordeaux.journalAngewandte Chemie International Edition
bordeaux.page3104-3107
bordeaux.volume57
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-01804029
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01804029v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Angewandte%20Chemie%20International%20Edition&rft.date=2018&rft.volume=57&rft.issue=12&rft.spage=3104-3107&rft.epage=3104-3107&rft.eissn=1433-7851&rft.issn=1433-7851&rft.au=ROSA,%20Marcello&DENISOV,%20Sergey&JONUSAUSKAS,%20Gediminas&MCCLENAGHAN,%20Nathan&CREDI,%20Alberto&rft.genre=article


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