Chiral thermal activation delayed fluorescence material and circular polarization electroluminescent device thereof

• Main Authors: LYU XIALEI, CAO XIAOSONG, YANG CHULUO
• Format: Patent
• Language: Chinese; English
• Published: 12.03.2021
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; POLISHES; SEMICONDUCTOR DEVICES

The invention provides a chiral thermal activation delayed fluorescence material and a circular polarization electroluminescent device thereof. The thermal activation delayed fluorescence material hasthe following structure that the molecular structure of the chiral thermal activation delayed fluorescence material is a resonance molecule with a large aromatic condensed ring structure, so that narrow-band emission is easy to realize. The invention also discloses an application of the chiral TADF organic light-emitting material in an organic electroluminescent circular polarization light-emitting device. The chiral TADF organic light-emitting material has high fluorescence quantum yield, narrow-band emission spectrum and circularly polarized light property, and can be used for preparing efficient organic light-emitting devices. 本发明提供一种手性热活化延迟荧光材料及其圆偏振电致发光器件，所述热活化延迟荧光材料具有以下结构:本发明提供的手性热活化延迟荧光材料的分子结构为大芳香稠环结构的共振分子，易于实现窄带发射。本发明还公开了上述手性TADF有机发光材料在有机电致圆偏振发光器件中的应用。本发明的手性TADF有机发光材料具有高的荧光量子产率、窄带发射光谱和圆偏振光性质，可用于制备高效的有机电致发光