Royal Society of Chemistry, Chemical Science, 4(12), p. 1495-1502, 2021
DOI: 10.1039/d0sc05631f
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Two TADF emitters were developed by modifying a reported less successful emitter BP-DPAC with fluorene to suppress concentration quenching. Their non-doped OLEDs displayed excellent EQEs of 22.8% and 21.3% with well-suppressed roll-off.