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Tris(triazolo)triazine-based emitters for solution-processed blue thermally activated delayed fluorescence organic light-emitting diodes

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Hundemer_2020_MA_TTT_CC.pdf (5.337Mb)
Date
13/10/2020
Author
Hundemer, Fabian
Crovini, Ettore
Wada, Yoshimasa
Kaji, Hironori
Bräse, Stefan
Zysman-Colman, Eli
Funder
European Commission
Grant ID
812872
Keywords
QD Chemistry
DAS
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Abstract
We report a new emitter 3,4,5-3TCz-TTT based on a tris(triazolo)triazine acceptor that shows thermally activated delayed fluorescence and cross-compare its performance with the recently reported analogue, 3DMAC-TTT. These compounds show blue emission and delayed fluorescence with delayed lifetimes on the order of milliseconds. Solution-processed organic light-emitting diodes achieving maximum external quantum efficiencies, EQEmax, of 5.8% for 3,4,5-3TCz-TTT and 11.0% for 3DMAC-TTT.
Citation
Hundemer , F , Crovini , E , Wada , Y , Kaji , H , Bräse , S & Zysman-Colman , E 2020 , ' Tris(triazolo)triazine-based emitters for solution-processed blue thermally activated delayed fluorescence organic light-emitting diodes ' , Materials Advances , vol. Advance Article . https://doi.org/10.1039/D0MA00659A
Publication
Materials Advances
Status
Peer reviewed
DOI
https://doi.org/10.1039/D0MA00659A
ISSN
2633-5409
Type
Journal article
Rights
Copyright © 2020 The Author(s). Open Access Article. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Description
The KIT authors are part of the Cluster 3D Matter Made To Order under Germany's Excellence Strategy (3DMM2O – EXC-2082 –390761711), which has been funded by the German Research Foundation. This work was supported, in part, by the Cooperative Research Center (Sonderforschungsbereich SFB 1176) “Molecular Structuring of Soft Matter”. This work was partly supported by JSPS KAKENHI grant nos. 17H01231 and 17J09631, and by the International Joint Usage/Research Centre (iJURC) at the Institute for Chemical Research (ICR), Kyoto University, Japan. The St Andrews authors thank EU horizon 2020 Grant Agreement No. 812872 (TADFlife) for funding. EZ-C acknowledge the International Collaborative Research Program of iJURC/ICR, Kyoto University (Grant No. 2020-37).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/20820

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