A deep-blue-emitting heteroatom-doped MR-TADF nonacene for high-performance organic light-emitting diodes

Subeesh Madayanad Suresh; Le Zhang; David Hall; Changfeng Si; Gaetano Ricci; Tomas Matulaitis; Alexandra  M. Z. Slawin; Stuart Warriner; Yoann Olivier; Ifor  D. Samuel; Eli Zysman-Colman

doi:10.1002/anie.202215522

A deep-blue-emitting heteroatom-doped MR-TADF nonacene for high-performance organic light-emitting diodes

Subeesh Madayanad Suresh, Le Zhang, David Hall, Changfeng Si, Gaetano Ricci, Tomas Matulaitis, Alexandra M. Z. Slawin, Stuart Warriner, Yoann Olivier, Ifor D. Samuel^*, Eli Zysman-Colman^*

^*Corresponding author for this work

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

Abstract

We present a p- and n-doped nonacene compound, NOBNacene, that represents a rare example of a linearly extended ladder-type multiresonant thermally activated delayed fluorescence (MR-TADF) emitter. This compound shows efficient narrow deep blue emission, with a λ_PL of 410 nm, full width at half maximum, FWHM, of 38 nm, photoluminescence quantum yield, Φ_PL of 71 %, and a delayed lifetime, τ_d of 1.18 ms in 1.5 wt % TSPO1 thin film. The organic light-emitting diode (OLED) using this compound as the emitter shows a comparable electroluminescence spectrum peaked at 409 nm (FWHM=37 nm) and a maximum external quantum efficiency (EQE_max) of 8.5 % at Commission Internationale de l’Éclairage (CIE) coordinates of (0.173, 0.055). The EQE_max values were increased to 11.2 % at 3 wt % doping of the emitter within the emissive layer of the device. At this concentration, the electroluminescence spectrum broadened slightly, leading to CIE coordinates of (0.176, 0.068).

Original language	English
Article number	e202215522
Number of pages	8
Journal	Angewandte Chemie International Edition
Volume	62
Issue number	8
Early online date	16 Jan 2023
DOIs	https://doi.org/10.1002/anie.202215522
Publication status	Published - 13 Feb 2023

Keywords

Multiresonant thermally activated delayed fluorescence
MR-TADF
Organic light-emitting diodes
OLEDs
Boron-doped acenes
Deep blue emission
Nanographene

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10.1002/anie.202215522Licence: CC BY

MadayanadSuresh_2023_ACIE_Deep-blue_CC
Copyright © 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Final published version, 1.81 MBLicence: CC BY

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
Blue-Emitting TADF Materials: Blue-Emitting TADF Materials for OLEDs Based on a Lewis Acid-Containing Acceptor
Zysman-Colman, E. (PI)
The Leverhulme Trust
1/08/16 → 30/04/22
Project: Standard

A Deep Blue Heteroatom Doped Nonacene That Exhibits MR-TADF and its Use as an Emitter in High-Performance Deep Blue Organic Light-Emitting Diodes (dataset)
Madayanad Suresh, S. (Creator), Zhang, L. (Creator), Hall, D. L. S. (Creator), Si, C. (Creator), Ricci, G. (Creator), Matulaitis, T. (Creator), Slawin, A. M. Z. (Creator), Warriner, S. (Creator), Olivier, Y. (Creator), Samuel, I. D. W. (Creator) & Zysman-Colman, E. (Creator), University of St Andrews, 20 Dec 2022
DOI: 10.17630/bbf0fb10-6225-4422-8b0b-73c965e2e6ba
Dataset

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Cite this

Madayanad Suresh, S., Zhang, L., Hall, D., Si, C., Ricci, G., Matulaitis, T., Slawin, A. M. Z., Warriner, S., Olivier, Y., Samuel, I. D., & Zysman-Colman, E. (2023). A deep-blue-emitting heteroatom-doped MR-TADF nonacene for high-performance organic light-emitting diodes. Angewandte Chemie International Edition, 62(8), Article e202215522. https://doi.org/10.1002/anie.202215522

@article{3a9784ba11364716a635eb74dbcd63f5,

title = "A deep-blue-emitting heteroatom-doped MR-TADF nonacene for high-performance organic light-emitting diodes",

abstract = "We present a p- and n-doped nonacene compound, NOBNacene, that represents a rare example of a linearly extended ladder-type multiresonant thermally activated delayed fluorescence (MR-TADF) emitter. This compound shows efficient narrow deep blue emission, with a λPL of 410 nm, full width at half maximum, FWHM, of 38 nm, photoluminescence quantum yield, ΦPL of 71 %, and a delayed lifetime, τd of 1.18 ms in 1.5 wt % TSPO1 thin film. The organic light-emitting diode (OLED) using this compound as the emitter shows a comparable electroluminescence spectrum peaked at 409 nm (FWHM=37 nm) and a maximum external quantum efficiency (EQEmax) of 8.5 % at Commission Internationale de l{\textquoteright}{\'E}clairage (CIE) coordinates of (0.173, 0.055). The EQEmax values were increased to 11.2 % at 3 wt % doping of the emitter within the emissive layer of the device. At this concentration, the electroluminescence spectrum broadened slightly, leading to CIE coordinates of (0.176, 0.068).",

keywords = "Multiresonant thermally activated delayed fluorescence, MR-TADF, Organic light-emitting diodes, OLEDs, Boron-doped acenes, Deep blue emission, Nanographene",

author = "{Madayanad Suresh}, Subeesh and Le Zhang and David Hall and Changfeng Si and Gaetano Ricci and Tomas Matulaitis and Slawin, {Alexandra M. Z.} and Stuart Warriner and Yoann Olivier and Samuel, {Ifor D.} and Eli Zysman-Colman",

note = "Funding: 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 838885 (NarrowbandSSL). S.M.S. acknowledges support from the Marie Sk{\l}odowska-Curie Individual Fellowship (grant agreement No 838885 NarrowbandSSL). We would like to thank the Leverhulme Trust (RPG-2016-047) for financial support. E.Z-C. and I.D.W.S acknowledge support from EPSRC (EP/L017008, EP/P010482/1). Computational resources have been provided by the Consortium des {\'E}quipements de Calcul Intensif (C{\'E}CI), funded by the Fonds de la Recherche Scientifiques de Belgique (F. R. S.-FNRS) under Grant No. 2.5020.11, as well as the Tier-1 supercomputer of the F{\'e}d{\'e}ration Wallonie-Bruxelles, infrastructure funded by the Walloon Region under the grant agreement n1117545. Y.O. acknowledges funding by the Fonds de la Recherche Scientifique-FNRS under Grant n° F.4534.21 (MIS-IMAGINE). G. R. acknowledges a grant from the {\textquoteleft}{\textquoteleft}Fonds pour la formation a la Recherche dans l{\textquoteright}Industrie et dans l{\textquoteright}Agriculture{\textquoteright}{\textquoteright} (FRIA) of the FRS-FNRS.",

year = "2023",

month = feb,

day = "13",

doi = "10.1002/anie.202215522",

language = "English",

volume = "62",

journal = "Angewandte Chemie International Edition",

issn = "1433-7851",

publisher = "John Wiley & Sons, Ltd",

number = "8",

}

TY - JOUR

T1 - A deep-blue-emitting heteroatom-doped MR-TADF nonacene for high-performance organic light-emitting diodes

AU - Madayanad Suresh, Subeesh

AU - Zhang, Le

AU - Hall, David

AU - Si, Changfeng

AU - Ricci, Gaetano

AU - Matulaitis, Tomas

AU - Slawin, Alexandra M. Z.

AU - Warriner, Stuart

AU - Olivier, Yoann

AU - Samuel, Ifor D.

AU - Zysman-Colman, Eli

N1 - Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska Curie grant agreement No 838885 (NarrowbandSSL). S.M.S. acknowledges support from the Marie Skłodowska-Curie Individual Fellowship (grant agreement No 838885 NarrowbandSSL). We would like to thank the Leverhulme Trust (RPG-2016-047) for financial support. E.Z-C. and I.D.W.S acknowledge support from EPSRC (EP/L017008, EP/P010482/1). Computational resources have been provided by the Consortium des Équipements de Calcul Intensif (CÉCI), funded by the Fonds de la Recherche Scientifiques de Belgique (F. R. S.-FNRS) under Grant No. 2.5020.11, as well as the Tier-1 supercomputer of the Fédération Wallonie-Bruxelles, infrastructure funded by the Walloon Region under the grant agreement n1117545. Y.O. acknowledges funding by the Fonds de la Recherche Scientifique-FNRS under Grant n° F.4534.21 (MIS-IMAGINE). G. R. acknowledges a grant from the ‘‘Fonds pour la formation a la Recherche dans l’Industrie et dans l’Agriculture’’ (FRIA) of the FRS-FNRS.

PY - 2023/2/13

Y1 - 2023/2/13

N2 - We present a p- and n-doped nonacene compound, NOBNacene, that represents a rare example of a linearly extended ladder-type multiresonant thermally activated delayed fluorescence (MR-TADF) emitter. This compound shows efficient narrow deep blue emission, with a λPL of 410 nm, full width at half maximum, FWHM, of 38 nm, photoluminescence quantum yield, ΦPL of 71 %, and a delayed lifetime, τd of 1.18 ms in 1.5 wt % TSPO1 thin film. The organic light-emitting diode (OLED) using this compound as the emitter shows a comparable electroluminescence spectrum peaked at 409 nm (FWHM=37 nm) and a maximum external quantum efficiency (EQEmax) of 8.5 % at Commission Internationale de l’Éclairage (CIE) coordinates of (0.173, 0.055). The EQEmax values were increased to 11.2 % at 3 wt % doping of the emitter within the emissive layer of the device. At this concentration, the electroluminescence spectrum broadened slightly, leading to CIE coordinates of (0.176, 0.068).

AB - We present a p- and n-doped nonacene compound, NOBNacene, that represents a rare example of a linearly extended ladder-type multiresonant thermally activated delayed fluorescence (MR-TADF) emitter. This compound shows efficient narrow deep blue emission, with a λPL of 410 nm, full width at half maximum, FWHM, of 38 nm, photoluminescence quantum yield, ΦPL of 71 %, and a delayed lifetime, τd of 1.18 ms in 1.5 wt % TSPO1 thin film. The organic light-emitting diode (OLED) using this compound as the emitter shows a comparable electroluminescence spectrum peaked at 409 nm (FWHM=37 nm) and a maximum external quantum efficiency (EQEmax) of 8.5 % at Commission Internationale de l’Éclairage (CIE) coordinates of (0.173, 0.055). The EQEmax values were increased to 11.2 % at 3 wt % doping of the emitter within the emissive layer of the device. At this concentration, the electroluminescence spectrum broadened slightly, leading to CIE coordinates of (0.176, 0.068).

KW - Multiresonant thermally activated delayed fluorescence

KW - MR-TADF

KW - Organic light-emitting diodes

KW - OLEDs

KW - Boron-doped acenes

KW - Deep blue emission

KW - Nanographene

U2 - 10.1002/anie.202215522

DO - 10.1002/anie.202215522

M3 - Article

SN - 1433-7851

VL - 62

JO - Angewandte Chemie International Edition

JF - Angewandte Chemie International Edition

IS - 8

M1 - e202215522

ER -

A deep-blue-emitting heteroatom-doped MR-TADF nonacene for high-performance organic light-emitting diodes

Abstract

Keywords

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Projects

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

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

Blue-Emitting TADF Materials: Blue-Emitting TADF Materials for OLEDs Based on a Lewis Acid-Containing Acceptor

Datasets

A Deep Blue Heteroatom Doped Nonacene That Exhibits MR-TADF and its Use as an Emitter in High-Performance Deep Blue Organic Light-Emitting Diodes (dataset)

Cite this