Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/18161
DC FieldValueLanguage
dc.contributor.authorLupton, John M.-
dc.contributor.authorSchouwink, Peter-
dc.contributor.authorKeivanidis, Panagiotis E.-
dc.contributor.authorGrimsdale, Andrew C.-
dc.contributor.authorMüllen, Klaus-
dc.date.accessioned2020-03-26T19:00:26Z-
dc.date.available2020-03-26T19:00:26Z-
dc.date.issued2003-02-01-
dc.identifier.citationAdvanced Functional Materials, 2003, vol.13, iss. 2, pp. 154-158en_US
dc.identifier.issn1616-301X-
dc.identifier.urihttps://ktisis.cut.ac.cy/handle/10488/18161-
dc.description.abstractDendronization has previously been suggested as a means of controlling the level of intermolecular interactions in macromolecular and polymeric compounds. We therefore studied the spectral relaxation dynamics of dendronized and non-dendronized polyfluorenes at different temperatures. Dendronization strongly affects inhomogeneous spectral broadening, resulting in a blue-shift and broadening of the otherwise narrow vibronic progression of polyfluorene at low temperature. Using gated spectroscopy we are able to identify emissive keto defects on isolated chains of both dendronized and non-dendronized polymers, along with a strong aggregation band in the solid state. Surprisingly, the emission from chemical and structural defects is found to be stronger in the case of the dendronized material. The observation of aggregate emission in dendronized polyfluorenes suggests that aggregation in these materials does not occur through linear π-stacking, but rather through electronic interactions at point contacts between chains introduced by structural kinks along the backbone.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofAdvanced Functional Materialsen_US
dc.rights© John Wiley & Sonsen_US
dc.subjectElectroluminescenceen_US
dc.subjectPolyfluorenesen_US
dc.subjectDendrimersen_US
dc.subjectAggregationen_US
dc.subjectExcitonsen_US
dc.titleInfluence of dendronization on spectral diffusion and aggregation in conjugated polymersen_US
dc.typeArticleen_US
dc.collaborationMax Planck Institute for Polymer Researchen_US
dc.subject.categoryMechanical Engineeringen_US
dc.journalsSubscriptionen_US
dc.countryGermanyen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1002/adfm.200390022en_US
dc.identifier.scopus2-s2.0-0037294023-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/0037294023-
dc.relation.issue2en_US
dc.relation.volume13en_US
cut.common.academicyear2020-2021en_US
dc.identifier.spage154en_US
dc.identifier.epage158en_US
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.openairetypearticle-
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.grantfulltextnone-
crisitem.journal.journalissn1616-3028-
crisitem.journal.publisherWiley-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.orcid0000-0002-5336-249X-
crisitem.author.parentorgFaculty of Engineering and Technology-
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