A pair of novel circularly polarized thermally activated delayed fluorescence (CP-TADF) enantiomers (+)-(S,S)-CTRI-Cz and (−)-(R,R)-CTRI-Cz based on chiral triptycene scaffold were designed and synthesized. The obtained triptycene-derived enantiomers displayed obvious TADF activities with small singlet-triplet energy gap value (ΔE_ST) of 0.20 eV and characteristic microsecond delayed lifetime of 15.4 μs. Moreover, the TADF enantiomers showed mirror-image circular dichroism (CD) and circularly polarized luminescence (CPL) activities, and their luminescence dissymmetry factors (g_lum) were about ±0.9 × 10⁻³. Finally, by using the TADF enantiomers as emitters, the optimized organic light-emitting diodes (OLEDs) achieved maximum external quantum efficiency (EQE_max), current efficiency (CE_max) and power efficiency (PE_max) of 15.0%, 48.8 cd/A and 46.9 lm/W, respectively.

设计了一对基于手性三苯乙烯支架的新型圆偏振热激活延迟荧光 (CP-TADF) 对映体 (+)-( S , S )- CTRI-Cz和 (-)-( R , R )- CTRI-Cz并合成。获得的三苯乙烯衍生的对映体显示出明显的 TADF 活性，具有0.20 eV 的小单线态-三线态能隙值 (Δ E _ST ) 和 15.4 μs 的特征微秒延迟寿命。此外，对映异构体TADF显示镜像圆二色性（CD）和圆偏振发光（CPL）的活动，并且它们的发光不对称因子（克_LUM）约为±0.9×10^－3．最后，通过使用 TADF 对映体作为发射体，优化的有机发光二极管 (OLED) 实现了 15.0%、48.8 cd/的最大外量子效率 (EQE _max )、电流效率 (CE _max ) 和功率效率 (PE _max )分别为 A 和 46.9 lm/W。