Organoboron-based multiple-resonance emitters: synthesis, structure–property correlations, and prospects†
Abstract
Boron-based multiple-resonance (MR) emitters exhibit the advantages of narrowband emission, high absolute photoluminescence quantum yield, thermally activated delayed fluorescence (TADF), and sufficient stability during the operation of organic light-emitting diodes (OLEDs). Thus, such MR emitters have been widely applied as blue emitters in triplet–triplet-annihilation-driven fluorescent devices used in smartphones and televisions. Moreover, they hold great promise as TADF or terminal emitters in TADF-assisted fluorescence or phosphor-sensitised fluorescent OLEDs. Herein we comprehensively review organoboron-based MR emitters based on their synthetic strategies, clarify structure–photophysical property correlations, and provide design guidelines and future development prospects.
- This article is part of the themed collection: Applications of Main Group Chemistry in Synthesis, Catalysis, and Biomedical and Materials Research
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