Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters

Rangani Wathsala Weerasinghe; John Marques dos Santos; Youhei Chitose; Tomas Matulaitis; Stuart L. Warriner; Debasish Barman; Chin-Yiu Chan; Youichi Tsuchiya; Eli Zysman-Colman; Chihaya Adachi

doi:10.1039/D4CP02664K

Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters

Rangani Wathsala Weerasinghe, John Marques dos Santos, Youhei Chitose, Tomas Matulaitis, Stuart L. Warriner, Debasish Barman, Chin-Yiu Chan, Youichi Tsuchiya, Eli Zysman-Colman, Chihaya Adachi

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

Abstract

Two novel deep-blue multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters, 1B-CzCrs and 2B-CzCrs, containing a fused carbazole unit were synthesized. The carbazole contributed to the emergence of TADF in these small molecules. Particularly, organic light-emitting diodes with 1B-CzCrs doped in the mCP host achieve a maximum external quantum efficiency of 12.8% at CIE coordinates of (0.146, 0.062).

Original language	English
Pages (from-to)	21337-21341
Number of pages	5
Journal	Physical Chemistry Chemical Physics
Volume	26
Issue number	32
Early online date	16 Jul 2024
DOIs	https://doi.org/10.1039/D4CP02664K
Publication status	E-pub ahead of print - 16 Jul 2024

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10.1039/D4CP02664KLicence: CC BY

Weerasinghe-2024-Molecular-asymmetry-and-rigidifcation-PCCP-26-32-21337-CCBY
Copyright © 2024 The Authors. Open Access. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Final published version, 862 KBLicence: CC BY

1 Finished
1 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
Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application
Zysman-Colman, E. (PI)
1/08/18 → 31/01/24
Project: Standard

Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deepblue MR-TADF emitters (dataset)
Weerasinghe, R. W. (Creator), Dos Santos, J. M. (Creator), Chitose, Y. (Creator), Matulaitis, T. (Creator), Warriner, S. L. (Creator), Barman, D. (Creator), Chan, C.-Y. (Creator), Tsuchiya, Y. (Creator), Zysman-Colman, E. (Creator) & Adachi, C. (Creator), University of St Andrews, 2 Aug 2024
DOI: 10.17630/2fd8e197-e110-4fe2-ba94-2471629aaa09
Dataset

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Cite this

Weerasinghe, R. W., dos Santos, J. M., Chitose, Y., Matulaitis, T., Warriner, S. L., Barman, D., Chan, C.-Y., Tsuchiya, Y., Zysman-Colman, E., & Adachi, C. (2024). Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters. Physical Chemistry Chemical Physics, 26(32), 21337-21341. Advance online publication. https://doi.org/10.1039/D4CP02664K

@article{d4fd82bcea754adcade2b7bdd40367e2,

title = "Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters",

abstract = "Two novel deep-blue multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters, 1B-CzCrs and 2B-CzCrs, containing a fused carbazole unit were synthesized. The carbazole contributed to the emergence of TADF in these small molecules. Particularly, organic light-emitting diodes with 1B-CzCrs doped in the mCP host achieve a maximum external quantum efficiency of 12.8% at CIE coordinates of (0.146, 0.062).",

author = "Weerasinghe, {Rangani Wathsala} and {dos Santos}, {John Marques} and Youhei Chitose and Tomas Matulaitis and Warriner, {Stuart L.} and Debasish Barman and Chin-Yiu Chan and Youichi Tsuchiya and Eli Zysman-Colman and Chihaya Adachi",

note = "Funding; This work was supported financially by Kyulux Inc, JSPS Grant-in-Aid for Specially Promoted Research (23H05406), JST CREST (JPMJCR22B3), JSPS KAKENHI (23K20039), ESPRC (EP/R035164/1, EP/W007517/1), City University of Hong Kong (Project No. 9610637 and 9231531).",

year = "2024",

month = jul,

day = "16",

doi = "10.1039/D4CP02664K",

language = "English",

volume = "26",

pages = "21337--21341",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "ROYAL SOC CHEMISTRY",

number = "32",

}

Weerasinghe, RW, dos Santos, JM, Chitose, Y, Matulaitis, T, Warriner, SL, Barman, D, Chan, C-Y, Tsuchiya, Y, Zysman-Colman, E & Adachi, C 2024, 'Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters', Physical Chemistry Chemical Physics, vol. 26, no. 32, pp. 21337-21341. https://doi.org/10.1039/D4CP02664K

Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters. / Weerasinghe, Rangani Wathsala; dos Santos, John Marques; Chitose, Youhei et al.
In: Physical Chemistry Chemical Physics, Vol. 26, No. 32, 16.07.2024, p. 21337-21341.

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

TY - JOUR

T1 - Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters

AU - Weerasinghe, Rangani Wathsala

AU - dos Santos, John Marques

AU - Chitose, Youhei

AU - Matulaitis, Tomas

AU - Warriner, Stuart L.

AU - Barman, Debasish

AU - Chan, Chin-Yiu

AU - Tsuchiya, Youichi

AU - Zysman-Colman, Eli

AU - Adachi, Chihaya

N1 - Funding; This work was supported financially by Kyulux Inc, JSPS Grant-in-Aid for Specially Promoted Research (23H05406), JST CREST (JPMJCR22B3), JSPS KAKENHI (23K20039), ESPRC (EP/R035164/1, EP/W007517/1), City University of Hong Kong (Project No. 9610637 and 9231531).

PY - 2024/7/16

Y1 - 2024/7/16

N2 - Two novel deep-blue multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters, 1B-CzCrs and 2B-CzCrs, containing a fused carbazole unit were synthesized. The carbazole contributed to the emergence of TADF in these small molecules. Particularly, organic light-emitting diodes with 1B-CzCrs doped in the mCP host achieve a maximum external quantum efficiency of 12.8% at CIE coordinates of (0.146, 0.062).

AB - Two novel deep-blue multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters, 1B-CzCrs and 2B-CzCrs, containing a fused carbazole unit were synthesized. The carbazole contributed to the emergence of TADF in these small molecules. Particularly, organic light-emitting diodes with 1B-CzCrs doped in the mCP host achieve a maximum external quantum efficiency of 12.8% at CIE coordinates of (0.146, 0.062).

U2 - 10.1039/D4CP02664K

DO - 10.1039/D4CP02664K

M3 - Article

SN - 1463-9076

VL - 26

SP - 21337

EP - 21341

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 32

ER -

Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deep-blue MR-TADF emitters

Abstract

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Projects

Allan Watson Programme Grant: Boron: Beyond the Reagent

Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application

Datasets

Molecular asymmetry and rigidification as strategies to activate and enhance thermally activated delayed fluorescence in deepblue MR-TADF emitters (dataset)

Cite this