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dc.contributor.authorSudhakar, Pagidi
dc.contributor.authorSlawin, Alexandra M. Z.
dc.contributor.authorZysman-Colman, Eli
dc.identifier.citationSudhakar , P , Slawin , A M Z & Zysman-Colman , E 2023 , ' Thermally activated delayed fluorescence and high-contrast mechanochromism of anthrone-based donor-acceptor systems ' , Frontiers in Chemistry , vol. 11 , 1248267 .
dc.identifier.otherPURE: 289245865
dc.identifier.otherPURE UUID: d5b809d7-379d-47bd-8971-024888033087
dc.identifier.otherORCID: /0000-0002-9527-6418/work/142063690
dc.identifier.otherORCID: /0000-0001-7183-6022/work/142064412
dc.identifier.otherScopus: 85171174656
dc.descriptionFunding: This project was funded by the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Skłodowska-Curie grant agreement no. 891606 (TADFNIR). The authors thank the Engineering and Physical Sciences Research Council for funding (EP/P010482/1).en
dc.description.abstractThe development of materials that emit in the deep red to near-infrared region of the spectrum has attracted significant attention on account of their potential as optical sensing and imaging reagents in biology. We report herein the synthesis and optoelectronic characterization of four anthraquinone-based emitters T-tBuCz-AQ, T-MeOCz-AQ, C-tBuCz-AQ, and C-MeOCz-AQ, and two pyrazoloanthrone-based emitters tBuCz-PA and DMAC-PA. Depending on the donor, these compounds emit between 640-750 nm in the neat film, while the emission of the 10 wt% doped films in PMMA are blue-shifted to between 600-700 nm and have low photoluminescence quantum yields of between 2.6-6.6%. Of these compounds, T-tBuCz-AQ, T-MeOCz-AQ, and C-tBuCz-AQ exhibited thermally activated delayed fluorescence in 10 wt% doped films in PMMA, while the crystals of T-tBuCz-AQ also showed TADF. Compound tBuCz-PA showed highcontrast and reversible PL response upon mechanical grinding and hexane fuming.
dc.relation.ispartofFrontiers in Chemistryen
dc.rightsCopyright © 2023 Sudhakar, Slawin and Zysman-Colman. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en
dc.subjectThermally activated delayed fluorescenceen
dc.subjectQD Chemistryen
dc.titleThermally activated delayed fluorescence and high-contrast mechanochromism of anthrone-based donor-acceptor systemsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
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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