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Ionic multiresonant thermally activated delayed fluorescence emitters for light emitting electrochemical cells

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Ionic multiresonant thermally activated delayed fluorescence emitters for light emitting electrochemical cells

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dc.contributor.author	Karaman, Merve
dc.contributor.author	Gupta, Abhishek Kumar
dc.contributor.author	Suresh, Subeesh Madayanad
dc.contributor.author	Matulaitis, Tomas
dc.contributor.author	Mardegan, Lorenzo
dc.contributor.author	Tordera Salvador, Daniel
dc.contributor.author	Bolink, Henk
dc.contributor.author	Wu, Sen
dc.contributor.author	Warriner, Stuart
dc.contributor.author	Samuel, Ifor D.
dc.contributor.author	Zysman-Colman, Eli
dc.date.accessioned	2023-02-09T14:30:06Z
dc.date.available	2023-02-09T14:30:06Z
dc.date.issued	2022
dc.identifier.citation	Karaman, Merve Gupta, Abhishek Kumar Suresh, Subeesh Madayanad Matulaitis, Tomas Mardegan, Lorenzo Tordera Salvador, Daniel Bolink, Henk Wu, Sen Warriner, Stuart Samuel, Ifor D. Zysman-Colman, Eli 2022 Ionic multiresonant thermally activated delayed fluorescence emitters for light emitting electrochemical cells Beilstein Journal Of Organic Chemistry 18 1311 1321
dc.identifier.uri	https://hdl.handle.net/10550/85374
dc.description.abstract	We designed and synthesized two new ionic thermally activated delayed fluorescent (TADF) emitters that are charged analogues of a known multiresonant TADF (MR-TADF) compound, DiKTa. The emission of the charged derivatives is red-shifted compared to the parent compound. For instance, DiKTa-OBuIm emits in the green (λPL = 499 nm, 1 wt % in mCP) while DiKTa-DPA-OBuIm emits in the red (λPL = 577 nm, 1 wt % in mCP). In 1 wt % mCP films, both emitters showed good photoluminescence quantum yields of 71% and 61%, and delayed lifetimes of 316.6 μs and 241.7 μs, respectively, for DiKTa-OBuIm and DiKTa-DPA-OBuIm, leading to reverse intersystem crossing rates of 2.85 × 103 s−1 and 3.04 × 103 s−1. Light-emitting electrochemical cells were prepared using both DiKTa-OBuIm and DiKTa-DPA-OBuIm as active emitters showing green (λmax = 534 nm) and red (λmax = 656 nm) emission, respectively.
dc.language.iso	eng
dc.relation.ispartof	Beilstein Journal Of Organic Chemistry, 2022, vol. 18, p. 1311-1321
dc.subject	Química orgànica
dc.subject	Electroquímica
dc.title	Ionic multiresonant thermally activated delayed fluorescence emitters for light emitting electrochemical cells
dc.type	journal article	es_ES
dc.date.updated	2023-02-09T14:30:07Z
dc.identifier.doi	10.3762/bjoc.18.136
dc.identifier.idgrec	156134
dc.rights.accessRights	open access	es_ES