A novel spiro-type donor 5H-spiro[benzo[b]acridine-12,9'-fluorene] (SPBAC) and thermally activated delayed fluorescence (TADF) emitter bis(4-(5H-spiro[benzo[b] acridine-12,9'-fluoren]-5-yl)phenyl)methanone (2SPBAC-BP) were synthesized for high efficiency organic light-emitting diode (OLED). The naphthalene moiety could introduce...
An energetic proximity between charge transfer singlet (1CT) and a local exciton triplet (3LE) is critical to facilitate reverse intersystem crossing rate and thus ultimately TADF. In this study, new...
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