NON-PLANAR BLUE PHOSPHORESCENT EMITTERS BASED ON FUNCTIONALIZED IMIDAZOLYL GROUP
申请人:ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
公开号:US20220073551A1
公开(公告)日:2022-03-10
Compounds of General formula I and General Formula II have substituents which may result in a non-planar configuration. This molecular geometry may be effective in reducing excimer formation. The compounds described herein may therefore have improved blue color purity. The compounds have utility in light emitting diodes and light emitting devices.
Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.
Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.
Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.
Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.
提供了包含一个扭曲芳基的新型磷光四价铂 (II) 化合物。此外,还提供了包含咪唑并[1,2-f]菲啶分子的新型磷光四价铂(II)化合物。这些化合物可用于有机发光器件,以提高器件效率、改善线形和延长使用寿命。