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Asymmetrically allocating donor and acceptor units on a spiro-skeleton to construct thermally activated delayed fluorescence emitter for efficient OLEDs
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DOI：10.1016/j.jlumin.2026.122019.png)
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Abstract
En 中文
• A novel asymmetric spiro-type TADF emitter A-s-TRZ with a typical through-space charge transfer (TSCT) characteristic was delicately designed and synthesized. • The emitter exhibits excellent thermal stability, small ΔEST, short delayed lifetime, and high photoluminescence quantum yield simultaneously. • The corresponding doped OLED realizes a high EQEmax of 18.14% with stable green emission at 520 nm, showing great potential for efficient OLED applications.
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