ArticleACS omega2026
Systematic Engineering of Acceptor Substituents in Blue TADF Emitters for Optimized Excited-State Dynamics and OLED Performance.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
Thermally activated delayed fluorescence (TADF) materials enable nearly 100% internal quantum efficiency in OLEDs, yet the substituent-dependent regulation of excited states in boron-based acceptors remains insufficiently clarified. In this study, we theoretically investigate the blue boron-based TADF emitter BOBT and five of its derivatives (B1-B5) bearing electron-withdrawing groups (-F, -Cl, -CN, -COOH, -COOCH3), to clarify how acceptor engineering influences charge transfer, singlet-triplet separation, and exciton-conversion dynamics. The analysis shows that systematic substitution effectively tunes donor-acceptor decoupling, frontier orbital gaps, Δ
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