The design of an extended multiple resonance TADF emitter based on a polycyclic amine/carbonyl system

Dianming Sun; Subeesh Madayanad Suresh; David Hall; Ming Zhang; Changfeng Si; David B. Cordes; Alexandra M.Z. Slawin; Yoann Olivier; Xiaohong Zhang; Eli Zysman-Colman

doi:10.1039/d0qm00190b

The design of an extended multiple resonance TADF emitter based on a polycyclic amine/carbonyl system

Dianming Sun, Subeesh Madayanad Suresh, David Hall, Ming Zhang, Changfeng Si, David B. Cordes, Alexandra M.Z. Slawin, Yoann Olivier, Xiaohong Zhang, Eli Zysman-Colman

Unite de recherche en chimie physique, theorique et structurale

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

Résumé

The development of multiple resonance thermally activated delayed fluorescence (MR-TADF) materials possessing narrow emission spectra has attracted significant attention as emitters for high colour purity organic light emitting diodes (OLEDs). In this work, a simple design strategy is introduced to construct an MR-TADF emitter, DDiKTa, through dimerization of the known MR-TADF emitter DiKTa. This design permits concentration quenching to be largely suppressed, which is a known weakness of previously reported MR-TADF emitters. OLEDs based on DDiKTa show an EQEmax of 19% at a doping concentration of 9 wt%. The electroluminescence spectrum is red-shifted into the green, producing a rare example of a green-emitting MR-TADF OLED.

langue originale	Anglais
Pages (de - à)	2018-2022
Nombre de pages	5
journal	Materials Chemistry Frontiers
Volume	4
Numéro de publication	7
Les DOIs	https://doi.org/10.1039/d0qm00190b
Etat de la publication	Publié - 1 janv. 2020

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10.1039/d0qm00190b

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@article{2c98bc8dc8b74e5f90cb1b4b710534b2,

title = "The design of an extended multiple resonance TADF emitter based on a polycyclic amine/carbonyl system",

abstract = "The development of multiple resonance thermally activated delayed fluorescence (MR-TADF) materials possessing narrow emission spectra has attracted significant attention as emitters for high colour purity organic light emitting diodes (OLEDs). In this work, a simple design strategy is introduced to construct an MR-TADF emitter, DDiKTa, through dimerization of the known MR-TADF emitter DiKTa. This design permits concentration quenching to be largely suppressed, which is a known weakness of previously reported MR-TADF emitters. OLEDs based on DDiKTa show an EQEmax of 19% at a doping concentration of 9 wt%. The electroluminescence spectrum is red-shifted into the green, producing a rare example of a green-emitting MR-TADF OLED.",

author = "Dianming Sun and Suresh, {Subeesh Madayanad} and David Hall and Ming Zhang and Changfeng Si and Cordes, {David B.} and Slawin, {Alexandra M.Z.} and Yoann Olivier and Xiaohong Zhang and Eli Zysman-Colman",

note = "Funding Information: This project has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska Curie grant agreement No. 838009 (TSFP) and No. 838885 (NarrowbandSSL). D. S. acknowledges support from the Marie Sk{\l}odowska-Curie Individual Fellowship, the National Postdoctoral Program for Innovative Talents (BX201700164), and the Jiangsu Planned Projects for Postdoctoral Research Funds (2018K011A). The St Andrews team would also like to thank the Leverhulme Trust (RPG-2016047) and EPSRC (EP/P010482/1) for financial support. We thank Umicore AG for the gift of materials. Computational resources have been provided by the Consortium des {\'E}quipements de Calcul In-tensif (C{\'E}CI), funded by the Fonds de la Recherche Scientifiques de Belgique (F. R. S.-FNRS) under Grant no. 2.5020.11. YO acknowledge fruitful discussion with Prof. D. Beljonne from the University of Mons, Prof. Juan-Carlos Sancho-Garcia from the University of Alicante and Prof. L. Muccioli from the University of Bologna. Publisher Copyright: {\textcopyright} the Partner Organisations. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

month = jan,

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doi = "10.1039/d0qm00190b",

language = "English",

volume = "4",

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T1 - The design of an extended multiple resonance TADF emitter based on a polycyclic amine/carbonyl system

AU - Sun, Dianming

AU - Suresh, Subeesh Madayanad

AU - Hall, David

AU - Zhang, Ming

AU - Si, Changfeng

AU - Cordes, David B.

AU - Slawin, Alexandra M.Z.

AU - Olivier, Yoann

AU - Zhang, Xiaohong

AU - Zysman-Colman, Eli

N1 - Funding Information: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska Curie grant agreement No. 838009 (TSFP) and No. 838885 (NarrowbandSSL). D. S. acknowledges support from the Marie Skłodowska-Curie Individual Fellowship, the National Postdoctoral Program for Innovative Talents (BX201700164), and the Jiangsu Planned Projects for Postdoctoral Research Funds (2018K011A). The St Andrews team would also like to thank the Leverhulme Trust (RPG-2016047) and EPSRC (EP/P010482/1) for financial support. We thank Umicore AG for the gift of materials. Computational resources have been provided by the Consortium des Équipements de Calcul In-tensif (CÉCI), funded by the Fonds de la Recherche Scientifiques de Belgique (F. R. S.-FNRS) under Grant no. 2.5020.11. YO acknowledge fruitful discussion with Prof. D. Beljonne from the University of Mons, Prof. Juan-Carlos Sancho-Garcia from the University of Alicante and Prof. L. Muccioli from the University of Bologna. Publisher Copyright: © the Partner Organisations. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - The development of multiple resonance thermally activated delayed fluorescence (MR-TADF) materials possessing narrow emission spectra has attracted significant attention as emitters for high colour purity organic light emitting diodes (OLEDs). In this work, a simple design strategy is introduced to construct an MR-TADF emitter, DDiKTa, through dimerization of the known MR-TADF emitter DiKTa. This design permits concentration quenching to be largely suppressed, which is a known weakness of previously reported MR-TADF emitters. OLEDs based on DDiKTa show an EQEmax of 19% at a doping concentration of 9 wt%. The electroluminescence spectrum is red-shifted into the green, producing a rare example of a green-emitting MR-TADF OLED.

AB - The development of multiple resonance thermally activated delayed fluorescence (MR-TADF) materials possessing narrow emission spectra has attracted significant attention as emitters for high colour purity organic light emitting diodes (OLEDs). In this work, a simple design strategy is introduced to construct an MR-TADF emitter, DDiKTa, through dimerization of the known MR-TADF emitter DiKTa. This design permits concentration quenching to be largely suppressed, which is a known weakness of previously reported MR-TADF emitters. OLEDs based on DDiKTa show an EQEmax of 19% at a doping concentration of 9 wt%. The electroluminescence spectrum is red-shifted into the green, producing a rare example of a green-emitting MR-TADF OLED.

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DO - 10.1039/d0qm00190b

M3 - Article

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SN - 2052-1537

VL - 4

SP - 2018

EP - 2022

JO - Materials Chemistry Frontiers

JF - Materials Chemistry Frontiers

IS - 7

ER -

The design of an extended multiple resonance TADF emitter based on a polycyclic amine/carbonyl system

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