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dc.contributor.authorChen, Dongyang
dc.contributor.authorTenopala‐Carmona, Francisco
dc.contributor.authorKnöller, Julius A.
dc.contributor.authorMischok, Andreas
dc.contributor.authorHall, David
dc.contributor.authorMadayanad Suresh, Subeesh
dc.contributor.authorMatulaitis, Tomas
dc.contributor.authorOlivier, Yoann
dc.contributor.authorNacke, Pierre
dc.contributor.authorGießelmann, Frank
dc.contributor.authorLaschat, Sabine
dc.contributor.authorGather, Malte C.
dc.contributor.authorZysman‐Colman, Eli
dc.date.accessioned2023-03-09T10:30:02Z
dc.date.available2023-03-09T10:30:02Z
dc.date.issued2023-04-11
dc.identifier283227145
dc.identifierc2245213-4603-44a1-9421-fc5736552155
dc.identifier85149374986
dc.identifier.citationChen , D , Tenopala‐Carmona , F , Knöller , J A , Mischok , A , Hall , D , Madayanad Suresh , S , Matulaitis , T , Olivier , Y , Nacke , P , Gießelmann , F , Laschat , S , Gather , M C & Zysman‐Colman , E 2023 , ' Mesogenic groups control the emitter orientation in multi-resonance TADF emitter films ' , Angewandte Chemie International Edition , vol. 62 , no. 16 , e202218911 . https://doi.org/10.1002/anie.202218911en
dc.identifier.issn1433-7851
dc.identifier.otherJisc: 1075871
dc.identifier.otherORCID: /0000-0003-0470-7356/work/130659535
dc.identifier.otherORCID: /0000-0002-4857-5562/work/130659953
dc.identifier.otherORCID: /0000-0001-7183-6022/work/130660102
dc.identifier.otherJisc: 1075871
dc.identifier.urihttps://hdl.handle.net/10023/27140
dc.descriptionFunding: Engineering and Physical Sciences Research Council - EP/P010482/1; Leverhulme Trust - RPG-2016-047; Royal Society - SRF\R1\201089; China Scholarship Council - 201603780001; Horizon 2020 Framework Programme - 838885; Fonds De La Recherche Scientifique - FNRS - 2.5020.11; Fonds De La Recherche Scientifique - FNRS - F.4534.21; Horizon 2020 Framework Programme - 101023743.en
dc.description.abstractThe use of thermally activated delayed fluorescence (TADF) emitters and emitters that show preferential horizontal orientation of their transition dipole moment (TDM) are two emerging strategies to enhance the efficiency of OLEDs. We present the first example of a liquid crystalline multi-resonance TADF (MR-TADF) emitter, DiKTa-LC. The compound possesses a nematic liquid crystalline phase between 80 °C and 110 °C. Importantly, the TDM of the spin-coated film shows preferential horizontal orientation, with an anisotropy factor, a, of 0.28, which is preserved in doped poly(vinylcarbazole) films. Green-emitting (λEL = 492 nm) solution-processed OLEDs based on DiKTa-LC showed an EQEmax of 13.6%. We thus demonstrate for the first time how self-assembly of a liquid crystalline TADF emitter can lead to the so-far elusive control of the orientation of the transition dipole in solution-processed films, which will be of relevance for high-performance solution-processed OLEDs.
dc.format.extent12
dc.format.extent5061459
dc.language.isoeng
dc.relation.ispartofAngewandte Chemie International Editionen
dc.subjectTADFen
dc.subjectOLEDen
dc.subjectLiquid crystalen
dc.subjectTransition dipole momenten
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subjectMCCen
dc.subject.lccQDen
dc.titleMesogenic groups control the emitter orientation in multi-resonance TADF emitter filmsen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Commissionen
dc.contributor.sponsorEuropean Commissionen
dc.contributor.sponsorThe Royal Societyen
dc.contributor.sponsorThe Leverhulme Trusten
dc.contributor.sponsorEPSRCen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Institute of Behavioural and Neural Sciencesen
dc.contributor.institutionUniversity of St Andrews. Centre for Energy Ethicsen
dc.identifier.doi10.1002/anie.202218911
dc.description.statusPeer revieweden
dc.identifier.grantnumber838885en
dc.identifier.grantnumber101025143en
dc.identifier.grantnumberSRF\R1\201089en
dc.identifier.grantnumberRPG-2016-047en
dc.identifier.grantnumberEP/P010482/1en


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