Is a small singlet–triplet energy gap a guarantee of TADF performance in MR-TADF compounds? Impact of the triplet manifold energy splitting-Reference-Cited by-同舟云学术

Is a small singlet–triplet energy gap a guarantee of TADF performance in MR-TADF compounds? Impact of the triplet manifold energy splitting

Published:2024 Issue:10 Volume:12 Page:3450-3464
ISSN:2050-7526
Container-title:Journal of Materials Chemistry C
language:en
Short-container-title:J. Mater. Chem. C

Author:

Keruckiene Rasa¹^ORCID,Vaitusionak Aliaksei A.²,Hulnik Maksim I.²,Berezianko Ivan A.²,Gudeika Dalius¹,Macionis Simas¹,Mahmoudi Malek¹,Volyniuk Dmytro¹^ORCID,Valverde Danillo³^ORCID,Olivier Yoann³^ORCID,Woon Kai Lin⁴^ORCID,Kostjuk Sergei V.²⁵^ORCID,Reineke Sebastian⁶^ORCID,Grazulevicius Juozas V.¹^ORCID,Sini Gjergji⁷

Affiliation:

1. Department of Polymer Chemistry and Technology, Kaunas University of Technology, K. Barsausko st. 59, LT-50254, Kaunas, Lithuania

2. Research Institute for Physical Chemical Problems of the Belarusian State University, 14, Leningradskaya st, 220030 Minsk, Belarus

3. Laboratory for Computational Modeling of Functional Materials, Namur Institute of Structured Matter, University of Namur, Rue de Bruxelles, 61, B-5000 Namur, Belgium

4. Low Dimensional Material Research Centre, Department of Physics, University Malaya, Kuala Lumpur, Malaysia

5. Department of Chemistry, Belarusian State University, Leningradskaya st. 14, 220006, Minsk, Belarus

6. Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP), Technische Universität Dresden, Dresden 01062, Germany

7. Laboratoire de Physicochimie des Polymères et des Interfaces, EA 2528, CY Cergy Paris Université, 5 mail Gay-Lussac, 95031 Cergy-Pontoise Cedex, France

Abstract

A design strategy for efficient MR-TADF emitters needs (i) avoiding aggregation by inducing steric hindrance at peripheral strategic positions, and (ii) combining lateral groups of higher donor character as compared to the central core.

Funder

Fonds De La Recherche Scientifique - FNRS

Grand Équipement National De Calcul Intensif

Horizon 2020

Publisher

Royal Society of Chemistry (RSC)

Link

http://pubs.rsc.org/en/content/articlepdf/2024/TC/D3TC04397E

Reference58 articles.

1. Intramolecular Dimerization Quenching of Delayed Emission in Asymmetric D–D′–A TADF Emitters

2. 1,4-Bis(trifluoromethyl)benzene as a new acceptor for the design and synthesis of emitters exhibiting efficient thermally activated delayed fluorescence and electroluminescence: experimental and computational guidance

3. V-shaped donor–acceptor organic emitters. A new approach towards efficient TADF OLED devices