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

• Main Authors: Keruckiene, Rasa, Vaitusionak, Aliaksei A., Hulnik, Maksim I., Berezianko, Ivan A., Gudeika, Dalius, Macionis, Simas, Mahmoudi, Malek, Volyniuk, Dmytro, Valverde, Danillo, Olivier, Yoann, Woon, Kai Lin, Kostjuk, Sergei V., Reineke, Sebastian, Grazulevicius, Juozas V., Sini, Gjergji
• Format: Article
• Published: Royal Society of Chemistry 2024
• Subjects: Q Science (General); QC Physics; QD Chemistry
• Online Access: http://eprints.um.edu.my/45612/; https://doi.org/10.1039/d3tc04397e
• Institution: Universiti Malaya

Aiming at obtaining pure-color emitters for organic light-emitting diodes (OLEDs), we designed and synthesized a new organic boron-containing indolocarbazole derivative as a candidate for multiple resonance-induced thermally activated delayed fluorescence (MR-TADF) emitters. The efficiency of the ta...