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Photophysics, electronic structure and solar cell performance of a donor-acceptor poly(N-dodecyl-2,7-carbazole-alt-benzothiadiazole) copolymer

dc.rights.licenseopen
hal.structure.identifierUniversity of Patras
dc.contributor.authorKOUTSOUBELITIS, Aimilios
hal.structure.identifierUniversity of Patras
dc.contributor.authorSEINTIS, Kostas
hal.structure.identifierUniversity of Patras
dc.contributor.authorTSIKRITZIS, Dimitrios
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorORIOU, Jules
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorBROCHON, Cyril
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorCLOUTET, Eric
hal.structure.identifierTeam 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies
dc.contributor.authorHADZIIOANNOU, Georges
dc.contributor.authorVASILOPOULOU, Maria
hal.structure.identifierDepartment of Chemical Engineering
dc.contributor.authorKENNOU, Stella
hal.structure.identifierUniversity of Patras
dc.contributor.authorFAKIS, Mihalis
hal.structure.identifierUniversity of Patras
dc.contributor.authorPALILIS, Leonidas
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2018
dc.identifier.issn1566-1199
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/19604
dc.description.abstractEnIn this contribution, we investigate the optoelectronic properties of a donor-acceptor poly(N-Dodecyl-2,7-carbazole-alt-benzothiadiazole (CBZ-BT) copolymer in solutions and thin films, by a combination of complementary optical and electronic spectroscopy techniques including stationary absorption and fluorescence, femtosecond time-resolved and ultraviolet/x-ray photoelectron spectroscopy. Absorption spectroscopy revealed two bands at 322/338 and 445/475 nm for CBZ-BT in solutions/films attributed to the carbazole and benzothiadiazole groups respectively. Photoexcitation either to the absorption band of the carbazole or benzothiadiazole group led to a broad and structureless fluorescence spectrum due to large torsional disorder in the excited state, originating from intramolecular energy transfer between carbazole and benzothiadiazole. Time resolved spectroscopy in solutions reveals a transient red-shift of the emission spectrum within less than 5 ps due to exciton migration and/or conformational relaxation of the polymer backbone. In films, this relaxation is faster accompanied by a quenching of the exciton lifetime.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPhotophysic properties
dc.subject.enConjugated Polymers
dc.title.enPhotophysics, electronic structure and solar cell performance of a donor-acceptor poly(N-dodecyl-2,7-carbazole-alt-benzothiadiazole) copolymer
dc.typeArticle de revue
dc.identifier.doi10.1016/j.orgel.2018.04.047
dc.subject.halChimie/Polymères
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
dc.subject.halPhysique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
bordeaux.journalOrganic Electronics
bordeaux.page202-212
bordeaux.volume59
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-01783553
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01783553v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Organic%20Electronics&rft.date=2018&rft.volume=59&rft.spage=202-212&rft.epage=202-212&rft.eissn=1566-1199&rft.issn=1566-1199&rft.au=KOUTSOUBELITIS,%20Aimilios&SEINTIS,%20Kostas&TSIKRITZIS,%20Dimitrios&ORIOU,%20Jules&BROCHON,%20Cyril&rft.genre=article


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