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hal.structure.identifierlp2n-01,lp2n-12
dc.contributor.authorFERNÉE, Mark J.
hal.structure.identifierlp2n-01,lp2n-12
dc.contributor.authorSINITO, Chiara
hal.structure.identifierSchool of Chemistry [Melbourne]
dc.contributor.authorMULVANEY, Paul
hal.structure.identifierlp2n-01,lp2n-12
dc.contributor.authorTAMARAT, Philippe
hal.structure.identifierlp2n-01,lp2n-12
dc.contributor.authorLOUNIS, Brahim
dc.date.accessioned2023-05-12T11:02:05Z
dc.date.available2023-05-12T11:02:05Z
dc.date.created2014-05-09
dc.date.issued2014-08-28
dc.identifier.issn1463-9076
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/182066
dc.description.abstractEnThe direct coupling of excited electronic states to optical phonons in single CdSe colloidal quantum dots is explored using both photoluminescence emission and excitation spectroscopies. We find a broad optical phonon spectrum associated with a single fine structure state. Multiple peaks in the optical phonon sideband are ascribed to different optical phonon types emanating from both the core and shell layers. A mixed emission process that involves the simultaneous generation of two different types of optical phonon is also observed. In general, rather than a single mode, each designated phonon type is associated with a dispersed family of modes. Narrow optical phonon sidebands, consistent with the dominant LO mode, are observed in some nanocrystals. A linewidth analysis indicates that optical phonon lifetimes are in the 10 picosecond range. We demonstrate the ability to selectively excite a specific band-edge state by directly exciting its LO phonon sideband.
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enINTRABAND RELAXATION
dc.subject.enNANOCRYSTALS
dc.subject.enEXCITON
dc.subject.enPHOTOLUMINESCENCE
dc.subject.enSPECTROSCOPY
dc.subject.enBOTTLENECK
dc.subject.enEMISSION
dc.subject.enENERGY
dc.title.enThe optical phonon spectrum of CdSe colloidal quantum dots
dc.typeArticle de revue
dc.identifier.doi10.1039/c4cp02
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Autre [cond-mat.other]
bordeaux.journalPhysical Chemistry Chemical Physics
bordeaux.page16957-16961
bordeaux.volume16
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue32
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01061208
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01061208v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Chemistry%20Chemical%20Physics&rft.date=2014-08-28&rft.volume=16&rft.issue=32&rft.spage=16957-16961&rft.epage=16957-16961&rft.eissn=1463-9076&rft.issn=1463-9076&rft.au=FERN%C3%89E,%20Mark%20J.&SINITO,%20Chiara&MULVANEY,%20Paul&TAMARAT,%20Philippe&LOUNIS,%20Brahim&rft.genre=article


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