Huang ZHuang C.-WTang Y.-KXiao ZLi NHua TCao XZhou CWu C.-CYang C.CHUNG-CHIH WU2022-04-252022-04-25202201437208https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116867373&doi=10.1016%2fj.dyepig.2021.109860&partnerID=40&md5=400b8151b0bcd2b946fec20b5512edechttps://scholars.lib.ntu.edu.tw/handle/123456789/607048The development of the thermally activated delayed fluorescence (TADF) emitters with circularly polarized luminescence (CPL), particularly those exhibiting deep-blue emission is still a formidable challenge. In this work, we reported a simple and easily accessed molecular design strategy for deep-blue circularly polarized TADF (CP-TADF) enantiomers. Two chiral compounds, namely (S)-NPE-AcDPS and (R)-NPE-AcDPS, were successfully designed and synthesized, which featured concurrently TADF, CPL, and aggregation-induced enhanced emission (AIEE) properties. The CPL exhibited a maximum gPL value of 3.0 × 10?4. These emitters exhibited deep blue emission peaking at 451 nm in doped film with a high photoluminescence of 86% and a small singlet-triplet splitting of 0.05 eV. Furthermore, the deep blue OLED based on (S)-NPE-AcDPS demonstrated a high external quantum efficiency (EQE) up to 18.5%. ? 2021Aggregation-induced enhanced emissionChiralityCircularly polarized lightOrganic light-emitting diodesThermally activated delayed fluorescenceCircular polarizationFluorescenceLightSupercomputersBlue OLEDsCircularly polarized luminescenceDeep blueDeep-blue emissionsEnhanced EmissionMolecular designSimple++Thermally activated delayed fluorescencesOrganic light emitting diodes (OLED)Circular PolarizationDevelopmentEfficiencyEmissionFilmPhotoluminescencejournal article10.1016/j.dyepig.2021.1098602-s2.0-85116867373