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Thermally activated delayed fluorescent (TADF) materials are capable of converting non-radiative triplets into radiative singlets in the presence of a tiny singlet-triplet splitting. Circularly polarized luminescent (CPL) materials with TADF properties have shown great potential in unity exciton utilization as well as high circularly polarized dissymmetry factors |gPL|. When employed in organic light-emitting devices (OLEDs), circularly polarized electroluminescence (CPEL) with high dissymmetry factors |gEL| is essential for reducing the optical loss and improving the quality of 3D, augment-reality, and virtual reality displays. This Perspective summarizes the recent advances in the cutting-edge research of CP-TADF-OLEDs and addresses the challenges in molecular and device engineering.
Zhou et al. (2020) studied this question.