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Photoluminescence of donor–acceptor carbazole chromophores

dc.rights.licenseopen
hal.structure.identifierLaboratoire de Physique des Lasers [LPL]
dc.contributor.authorCASTEX, M.C.
dc.contributor.authorOLIVERO, C.
dc.contributor.authorPICHLER, G.
dc.contributor.authorADÈS, D.
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorCLOUTET, Eric
IDREF: 151048681
dc.contributor.authorSIOVE, A.
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2001
dc.identifier.issn0379-6779
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/19589
dc.description.abstractEnAbsorption and emission features of various chromophores both in the solid amorphous state and in solution are presented. These 1-(N-ethyl-carbazolyl)-2-substituted-2-cyanovinylene molecules contain in their structure the electron-donor carbazole nucleus and cyanovinylene bearing different acceptor moieties such as either another nitrile function, a methylester, a phenyl, or a para-nitro-phenyl group. It is shown that depending on the strength of the donor–acceptor internal charge transfer, both the absorption and emission spectra are more or less red-shifted. It is found that the methylester derivative displays the best relative photoluminescence efficiency among all the samples. From solvatochromic studies we showed that the remarkable luminescence of the cyanoester derivative can be attributed to a strong dipole moment in the excited state. Furthermore, cyanoester microcrystallites exhibited spectral narrowing which was attributed to an amplified spontaneous emission.
dc.language.isoen
dc.publisherElsevier
dc.title.enPhotoluminescence of donor–acceptor carbazole chromophores
dc.typeArticle de revue
dc.identifier.doi10.1016/S0379-6779(00)01362-X
dc.subject.halChimie/Polymères
bordeaux.journalSynthetic Metals
bordeaux.page59-61
bordeaux.volume122
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue1
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-02930297
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02930297v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Synthetic%20Metals&rft.date=2001&rft.volume=122&rft.issue=1&rft.spage=59-61&rft.epage=59-61&rft.eissn=0379-6779&rft.issn=0379-6779&rft.au=CASTEX,%20M.C.&OLIVERO,%20C.&PICHLER,%20G.&AD%C3%88S,%20D.&CLOUTET,%20Eric&rft.genre=article


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