The design of extended multiple resonance thermally activated delayed fluorescence emitter based on polycyclic amine/carbonyl system

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

doi:10.1039/D0QM00190B

The design of extended multiple resonance thermally activated delayed fluorescence emitter based on polycyclic amine/carbonyl system

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

Research output: Contribution to journal › Article › peer-review

Abstract

The development of muliple 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 a 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 electrolumicence spectrum is red-shifted into the green, producing a rare example of a green-emitting MR-TADF OLED.

Original language	English
Pages (from-to)	2018-2022
Number of pages	5
Journal	Materials Chemistry Frontiers
Volume	4
Issue number	7
Early online date	15 May 2020
DOIs	https://doi.org/10.1039/D0QM00190B
Publication status	Published - 1 Jul 2020

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Sun_2020_MCF_TADF_CC
Copyright © 2020 The Author(s). This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Final published version, 2.51 MBLicence: CC BY

H2020 MSCA IF 2018 (Dianming Sun): H2020 MSCA IF 2018 (Dianming Sun)
Zysman-Colman, E. (PI)
European Commission
12/08/19 → 11/08/21
Project: Fellowship
H2020 MSCA IF 2018 (Subeesh Suresh): H2020 MSCA IF 2018 (Subeesh Suresh )
Zysman-Colman, E. (PI)
European Commission
1/04/19 → 31/03/21
Project: Fellowship
TADF Emitters for OLEDs - Eli Zysman: TADF Emitters for OLEDs
Zysman-Colman, E. (PI)
EPSRC
1/03/17 → 31/03/21
Project: Standard

The design of extended Multiple Resonance TADF emitter based on polycyclic amine/carbonyl system (dataset)
Sun, D. (Creator), Madayanad Suresh, S. (Creator), Hall, D. (Creator), Zhang, M. (Creator), Si, C. (Creator), Cordes, D. B. (Creator), Slawin, A. M. Z. (Creator), Olivier, Y. (Creator), Zhang, X. (Creator) & Zysman-Colman, E. (Creator), University of St Andrews, 29 Jun 2020
DOI: 10.17630/1bec3f8b-84ae-4a1c-87da-9d36465f811b
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title = "The design of extended multiple resonance thermally activated delayed fluorescence emitter based on polycyclic amine/carbonyl system",

abstract = "The development of muliple 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 a 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 electrolumicence 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 Bradford} and Alexandra Slawin and Yoann Olivier and Xiaohong Zhang and Eli Zysman-Colman",

note = "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), 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 beenprovided 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.",

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doi = "10.1039/D0QM00190B",

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T1 - The design of extended multiple resonance thermally activated delayed fluorescence emitter based on polycyclic amine/carbonyl system

AU - Sun, Dianming

AU - Suresh, Subeesh Madayanad

AU - Hall, David

AU - Zhang, Ming

AU - Si, Changfeng

AU - Cordes, David Bradford

AU - Slawin, Alexandra

AU - Olivier, Yoann

AU - Zhang, Xiaohong

AU - Zysman-Colman, Eli

N1 - 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), 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 beenprovided 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.

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N2 - The development of muliple 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 a 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 electrolumicence spectrum is red-shifted into the green, producing a rare example of a green-emitting MR-TADF OLED.

AB - The development of muliple 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 a 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 electrolumicence spectrum is red-shifted into the green, producing a rare example of a green-emitting MR-TADF OLED.

U2 - 10.1039/D0QM00190B

DO - 10.1039/D0QM00190B

M3 - Article

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VL - 4

SP - 2018

EP - 2022

JO - Materials Chemistry Frontiers

JF - Materials Chemistry Frontiers

IS - 7

ER -

The design of extended multiple resonance thermally activated delayed fluorescence emitter based on polycyclic amine/carbonyl system

Abstract

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Projects

H2020 MSCA IF 2018 (Dianming Sun): H2020 MSCA IF 2018 (Dianming Sun)

H2020 MSCA IF 2018 (Subeesh Suresh): H2020 MSCA IF 2018 (Subeesh Suresh )

TADF Emitters for OLEDs - Eli Zysman: TADF Emitters for OLEDs

Datasets

The design of extended Multiple Resonance TADF emitter based on polycyclic amine/carbonyl system (dataset)

Cite this