Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/100803
DC FieldValueLanguage
dc.contributor.authorRodrigues, Ana Clara B.-
dc.contributor.authorEckert, Anika-
dc.contributor.authorPina, João-
dc.contributor.authorScherf, Ullrich-
dc.contributor.authorSeixas de Melo, J. Sérgio-
dc.date.accessioned2022-07-12T11:30:24Z-
dc.date.available2022-07-12T11:30:24Z-
dc.date.issued2021-
dc.identifier.issn2633-5409pt
dc.identifier.urihttps://hdl.handle.net/10316/100803-
dc.description.abstractThree new copolymers based on bay-annulated indigo (BAI) building blocks were synthesized through Stille-type cross-coupling reactions, alternating the electron-deficient BAI units with thiophene-based donor moieties. These polymers showed absorption and fluorescence emission in the NIR region. Their spatial structures were found to prevent aggregation-caused quenching (ACQ) in the solid state. Photoluminescence at 77 K is found ca. four times more intense than at 293 K. Based on time-resolved photoluminescence experiments, the excited-state energy transfer hopping deactivation in the copolymers is discussed in terms of a Förster-type mechanism, with time constants ranging from 1010 to 1011 s-1.pt
dc.language.isoengpt
dc.relationProject ‘‘Hylight’’ (no. 031625) 02/SAICT/2017pt
dc.relationPTDC/QUI-QFI/31625/2017pt
dc.relation(COMPETE) and project ROTEIRO/0152/2013pt
dc.relationFCT, UID/QUI/00313/2019–2020pt
dc.relationLaserlab-Europe (grant agreement no. 284464, EC’s Seventh Framework Programme)pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.titlePolymeric near infrared emitters with bay-annulated indigo moietiespt
dc.typearticle-
degois.publication.firstPage3736pt
degois.publication.lastPage3743pt
degois.publication.issue11pt
degois.publication.titleMaterials Advancespt
dc.peerreviewedyespt
dc.identifier.doi10.1039/D1MA00260Kpt
degois.publication.volume2pt
dc.date.embargo2021-01-01*
uc.date.periodoEmbargo0pt
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.orcid0000-0002-5128-0204-
crisitem.author.orcid0000-0003-1848-1167-
crisitem.author.orcid0000-0001-9708-5079-
Appears in Collections:I&D CQC - Artigos em Revistas Internacionais
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