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dc.contributor.authorSi, Changfeng
dc.contributor.authorWang, Tao
dc.contributor.authorGupta, Abhishek Kumar
dc.contributor.authorCordes, David Bradford
dc.contributor.authorSlawin, Alexandra Martha Zoya
dc.contributor.authorSiegel, Jay S.
dc.contributor.authorZysman-Colman, Eli
dc.identifier.citationSi , C , Wang , T , Gupta , A K , Cordes , D B , Slawin , A M Z , Siegel , J S & Zysman-Colman , E 2023 , ' Room-temperature multiple phosphorescence from functionalized corannulenes : temperature sensing and afterglow organic light-emitting diode ' , Angewandte Chemie International Edition , vol. 62 , no. 43 , e202309718 .
dc.identifier.otherPURE: 293650472
dc.identifier.otherPURE UUID: fe764d1e-4960-49ea-acbb-bb227138e3b2
dc.identifier.otherORCID: /0000-0002-9527-6418/work/142499219
dc.identifier.otherORCID: /0000-0002-5366-9168/work/142499307
dc.identifier.otherORCID: /0000-0001-7183-6022/work/142499562
dc.identifier.otherScopus: 85171298744
dc.descriptionC. Si thanks the China Scholarship Council (201806890001).This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 897098 (AIE-RTP-PLED). T.W. acknowledges support from the Marie Skłodowska-Curie Individual Fellowship. We thank the EPSRC (EP/R035164/1) for financial support.en
dc.description.abstractCorannulene-derived materials have been extensively explored in energy storage and solar cells, but, however, are rarely documented as emitters in light-emitting sensors and organic light-emitting diodes (OLEDs), due to low exciton utilization. Here, we report a family of multi-donor and acceptor (multi-D-A) motifs, TCzPhCor, TDMACPhCor, and TPXZPhCor, using corannulene as the acceptor and carbazole (Cz), 9,10-dihydro-9,10-dimethylacridine (DMAC), and phenoxazine (PXZ) as the donor, respectively. By decorating corannulene with different donors, multiple phosphorescence is realized. Theoretical and photophysical investigations reveal that TCzPhCor shows room-temperature phosphorescence (RTP) from the lowest-lying T1; however, for TDMACPhCor, dual RTP originating from a higher-lying T1 (T1H) and a lower-lying T1 (T1L) can be observed, while for TPXZPhCor, T1H-dominated RTP occurs resulting from a stabilized high-energy T1 geometry. Benefiting from the high-temperature sensitivity of TPXZPhCor, high color-resolution temperature sensing is achieved. Besides, due to degenerate S1 and T1H states of TPXZPhCor, the first corannulene-based solution-processed afterglow organic light-emitting diodes (OLEDs) is investigated. The afterglow OLED with TPXZPhCor shows a maximum external quantum efficiency (EQEmax) and a luminance (Lmax) of 3.3% and 5167 cd m-2, respectively, which is one of the most efficient afterglow RTP OLEDs reported to date.
dc.relation.ispartofAngewandte Chemie International Editionen
dc.rightsCopyright © 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectAfterglow organic light-emitting diodeen
dc.subjectMultiple phosphorescenceen
dc.subjectRoom-temperature phosphorescenceen
dc.subjectTemperature sensingen
dc.subjectQD Chemistryen
dc.titleRoom-temperature multiple phosphorescence from functionalized corannulenes : temperature sensing and afterglow organic light-emitting diodeen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Commissionen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. Institute of Behavioural and Neural Sciencesen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.contributor.institutionUniversity of St Andrews. Centre for Energy Ethicsen
dc.description.statusPeer revieweden

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