A fluorene-bridged double carbonyl/amine multiresonant thermally activated delayed fluorescence emitter for efficient green OLEDs

Sen Wu; Ya-Nan Hu; Dianming Sun; Kai Wang; Xiao-Hong Zhang; Eli Zysman-Colman

doi:10.1039/d3cc05761e

A fluorene-bridged double carbonyl/amine multiresonant thermally activated delayed fluorescence emitter for efficient green OLEDs

Sen Wu, Ya-Nan Hu, Dianming Sun^*, Kai Wang, Xiao-Hong Zhang^*, Eli Zysman-Colman^*

^*Corresponding author for this work

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

Abstract

Herein, we report a fluorene-bridged double carbonyl/amine-based MR TADF emitter DDiKTa-F, formed by locking the conformation of the previously reported compound DDiKTa. Using this strategy, DDiKTa-F exhibited narrower, brighter, and red-shifted emission. The OLEDs with DDiKTa-F emitted at 493 nm and showed an EQE_max of 15.3% with an efficiency roll-off of 35% at 100 cd m⁻².

Original language	English
Pages (from-to)	2489-2492
Number of pages	4
Journal	Chemical Communications
Volume	60
Issue number	18
Early online date	22 Dec 2023
DOIs	https://doi.org/10.1039/d3cc05761e
Publication status	Published - 4 Mar 2024

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10.1039/d3cc05761eLicence: CC BY

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Copyright © 2023 the Authors. Open Access. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
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1 Finished
2 Active

Allan Watson Programme Grant: Boron: Beyond the Reagent
Watson, A. J. B. (PI), Morris, R. E. (CoI), Smith, A. D. (CoI) & Zysman-Colman, E. (CoI)
UK Research and Innovation
1/05/23 → 30/04/28
Project: Standard
MR TADF: Multi-resonance TADF materials for highly efficient and stable OLEDs
Zysman-Colman, E. (PI)
EPSRC
1/07/22 → 30/06/25
Project: Standard
SolOLED: Scale-up of TADF Dendrimer: SolOLED: Scale-up of TADF Dendrimer Emitters for Solution-Processed OLEDs
Zysman-Colman, E. (PI)
EPSRC
1/11/21 → 30/06/22
Project: Standard

Fluorene-Bridged Double Carbonyl/amine Multiresonant Thermally Activated Delayed Fluorescence Emitter for Efficient Green OLEDs (dataset)
Wu, S. (Creator), Hu, Y.-N. (Creator), Sun, D. (Creator), Wang, K. (Creator), Zhang, X.-H. (Creator) & Zysman-Colman, E. (Creator), University of St Andrews, 9 Jan 2024
DOI: 10.17630/87972673-41de-4d34-9fd1-cfd23e633741
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title = "A fluorene-bridged double carbonyl/amine multiresonant thermally activated delayed fluorescence emitter for efficient green OLEDs",

abstract = "Herein, we report a fluorene-bridged double carbonyl/amine-based MR TADF emitter DDiKTa-F, formed by locking the conformation of the previously reported compound DDiKTa. Using this strategy, DDiKTa-F exhibited narrower, brighter, and red-shifted emission. The OLEDs with DDiKTa-F emitted at 493 nm and showed an EQEmax of 15.3% with an efficiency roll-off of 35% at 100 cd m−2.",

author = "Sen Wu and Ya-Nan Hu and Dianming Sun and Kai Wang and Xiao-Hong Zhang and Eli Zysman-Colman",

note = "S. W. thanks the China Scholarship Council (201906250199) for support. D.S. acknowledges support from the Royal Academy of Engineering Enterprise Fellowship (EF2122-13106). E. Z.-C. thanks the Engineering and Physical Sciences Research Council (EP/W015137/1, EP/W007517) for support. X.-H. Z. acknowledges support from the National Natural Science Foundation of China (Grant No. 52130304, 51821002) and the Collaborative Innovation Center of Suzhou Nano Science & Technology.",

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doi = "10.1039/d3cc05761e",

language = "English",

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AU - Wu, Sen

AU - Hu, Ya-Nan

AU - Sun, Dianming

AU - Wang, Kai

AU - Zhang, Xiao-Hong

AU - Zysman-Colman, Eli

N1 - S. W. thanks the China Scholarship Council (201906250199) for support. D.S. acknowledges support from the Royal Academy of Engineering Enterprise Fellowship (EF2122-13106). E. Z.-C. thanks the Engineering and Physical Sciences Research Council (EP/W015137/1, EP/W007517) for support. X.-H. Z. acknowledges support from the National Natural Science Foundation of China (Grant No. 52130304, 51821002) and the Collaborative Innovation Center of Suzhou Nano Science & Technology.

PY - 2024/3/4

Y1 - 2024/3/4

N2 - Herein, we report a fluorene-bridged double carbonyl/amine-based MR TADF emitter DDiKTa-F, formed by locking the conformation of the previously reported compound DDiKTa. Using this strategy, DDiKTa-F exhibited narrower, brighter, and red-shifted emission. The OLEDs with DDiKTa-F emitted at 493 nm and showed an EQEmax of 15.3% with an efficiency roll-off of 35% at 100 cd m−2.

AB - Herein, we report a fluorene-bridged double carbonyl/amine-based MR TADF emitter DDiKTa-F, formed by locking the conformation of the previously reported compound DDiKTa. Using this strategy, DDiKTa-F exhibited narrower, brighter, and red-shifted emission. The OLEDs with DDiKTa-F emitted at 493 nm and showed an EQEmax of 15.3% with an efficiency roll-off of 35% at 100 cd m−2.

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DO - 10.1039/d3cc05761e

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EP - 2492

JO - Chemical Communications

JF - Chemical Communications

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A fluorene-bridged double carbonyl/amine multiresonant thermally activated delayed fluorescence emitter for efficient green OLEDs

Abstract

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Projects

Allan Watson Programme Grant: Boron: Beyond the Reagent

MR TADF: Multi-resonance TADF materials for highly efficient and stable OLEDs

SolOLED: Scale-up of TADF Dendrimer: SolOLED: Scale-up of TADF Dendrimer Emitters for Solution-Processed OLEDs

Datasets

Fluorene-Bridged Double Carbonyl/amine Multiresonant Thermally Activated Delayed Fluorescence Emitter for Efficient Green OLEDs (dataset)

Cite this