A novel B,O,N-doped mesogen with narrowband MR-TADF emission

Julius A. Knöller; Burcu Sönmez; Tomas Matulaitis; Abhishek Kumar Gupta; Eli Zysman-Colman; Sabine Laschat

doi:10.1039/d4cc00537f

A novel B,O,N-doped mesogen with narrowband MR-TADF emission

Julius A. Knöller^*, Burcu Sönmez, Tomas Matulaitis, Abhishek Kumar Gupta, Eli Zysman-Colman^*, Sabine Laschat^*

^*Corresponding author for this work

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

Abstract

Modification of an unsymmetric B,O,N-doped aromatic core with peripheral mesogenic units triggers self-assembly into a columnar hexagonal mesophase, which is stable between 22 and 144 °C. The columnar assembly is preserved in a glassy state below 22 °C. The B,O,N-doped mesogen displays narrowband sky-blue multiresonance thermally activated delayed fluorescence (MR-TADF) under diluted conditions and bright excimer emission in condensed phase. Our combined experimental and theoretical approach provides insight into the development of strongly aggregating liquid crystalline MR-TADF emitters.

Original language	English
Number of pages	4
Journal	Chemical Communications
Volume	Advance Article
Early online date	18 Mar 2024
DOIs	https://doi.org/10.1039/d4cc00537f
Publication status	E-pub ahead of print - 18 Mar 2024

Keywords

Materials Chemistry
Metals and Alloys
Surfaces, Coatings and Films
General Chemistry
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Catalysis

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10.1039/d4cc00537fLicence: CC BY

Knoller_2024_CC_Novel-BON-doped_CC
Copyright The Author(s). This article is licensed under Creative Commons Attribution 3.0 Unported Licence.
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2 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
Eli Zysman-colman SRF: New Frontiers in Multi-Resonance Thermally Activated Delayed Fluorescence Emitter Design for Organic Light-Emitting Diodes
Zysman-Colman, E. (PI)
The Royal Society
18/01/21 → 18/03/22
Project: Fellowship

A novel B,O,N-doped mesogen with narrowband MR-TADF emission (dataset)
Knöller, J. A. (Creator), Sönmez, B. (Creator), Matulaitis, T. (Creator), Gupta, A. K. (Creator), Zysman-Colman, E. (Creator) & Laschat, S. (Creator), University of St Andrews, 11 Apr 2024
DOI: 10.17630/2d90aafb-a5d2-4645-977d-db424f2020fe
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Cite this

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title = "A novel B,O,N-doped mesogen with narrowband MR-TADF emission",

abstract = "Modification of an unsymmetric B,O,N-doped aromatic core with peripheral mesogenic units triggers self-assembly into a columnar hexagonal mesophase, which is stable between 22 and 144 °C. The columnar assembly is preserved in a glassy state below 22 °C. The B,O,N-doped mesogen displays narrowband sky-blue multiresonance thermally activated delayed fluorescence (MR-TADF) under diluted conditions and bright excimer emission in condensed phase. Our combined experimental and theoretical approach provides insight into the development of strongly aggregating liquid crystalline MR-TADF emitters.",

keywords = "Materials Chemistry, Metals and Alloys, Surfaces, Coatings and Films, General Chemistry, Ceramics and Composites, Electronic, Optical and Magnetic Materials, Catalysis",

author = "Kn{\"o}ller, {Julius A.} and Burcu S{\"o}nmez and Tomas Matulaitis and Gupta, {Abhishek Kumar} and Eli Zysman-Colman and Sabine Laschat",

note = "The St Andrews team would also like to thank EPSRC (EP/P010482/1, EP/W015137/1, EP/W007517/1) for financial support. E.Z.-C. was a Royal Society Leverhulme Trust Senior Research Fellow (SRF\R1\201089).",

year = "2024",

month = mar,

day = "18",

doi = "10.1039/d4cc00537f",

language = "English",

volume = "Advance Article",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - A novel B,O,N-doped mesogen with narrowband MR-TADF emission

AU - Knöller, Julius A.

AU - Sönmez, Burcu

AU - Matulaitis, Tomas

AU - Gupta, Abhishek Kumar

AU - Zysman-Colman, Eli

AU - Laschat, Sabine

N1 - The St Andrews team would also like to thank EPSRC (EP/P010482/1, EP/W015137/1, EP/W007517/1) for financial support. E.Z.-C. was a Royal Society Leverhulme Trust Senior Research Fellow (SRF\R1\201089).

PY - 2024/3/18

Y1 - 2024/3/18

N2 - Modification of an unsymmetric B,O,N-doped aromatic core with peripheral mesogenic units triggers self-assembly into a columnar hexagonal mesophase, which is stable between 22 and 144 °C. The columnar assembly is preserved in a glassy state below 22 °C. The B,O,N-doped mesogen displays narrowband sky-blue multiresonance thermally activated delayed fluorescence (MR-TADF) under diluted conditions and bright excimer emission in condensed phase. Our combined experimental and theoretical approach provides insight into the development of strongly aggregating liquid crystalline MR-TADF emitters.

AB - Modification of an unsymmetric B,O,N-doped aromatic core with peripheral mesogenic units triggers self-assembly into a columnar hexagonal mesophase, which is stable between 22 and 144 °C. The columnar assembly is preserved in a glassy state below 22 °C. The B,O,N-doped mesogen displays narrowband sky-blue multiresonance thermally activated delayed fluorescence (MR-TADF) under diluted conditions and bright excimer emission in condensed phase. Our combined experimental and theoretical approach provides insight into the development of strongly aggregating liquid crystalline MR-TADF emitters.

KW - Materials Chemistry

KW - Metals and Alloys

KW - Surfaces, Coatings and Films

KW - General Chemistry

KW - Ceramics and Composites

KW - Electronic, Optical and Magnetic Materials

KW - Catalysis

U2 - 10.1039/d4cc00537f

DO - 10.1039/d4cc00537f

M3 - Article

SN - 1359-7345

VL - Advance Article

JO - Chemical Communications

JF - Chemical Communications

ER -

A novel B,O,N-doped mesogen with narrowband MR-TADF emission

Abstract

Keywords

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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

Eli Zysman-colman SRF: New Frontiers in Multi-Resonance Thermally Activated Delayed Fluorescence Emitter Design for Organic Light-Emitting Diodes

Datasets

A novel B,O,N-doped mesogen with narrowband MR-TADF emission (dataset)

Cite this