COMPOUND, MATERIAL FOR AN ORGANIC ELECTROLUMINESCENT DEVICE AND APPLICATION THEREOF
申请人:Wuhan Tianma Microelectronics Co., Ltd.
公开号:US20220093871A1
公开(公告)日:2022-03-24
Provided are a compound, a material for an organic electroluminescent device and an application thereof. The compound has a structure which is formed by substituting at any substitutable position of a structure represented by Formula I with at least one cyano group. The compound has a relatively high refractive index in the region of visible light (400-750 nm) and a reduced extinction coefficient K. When used in the organic electroluminescent device especially as a material for a capping layer, the compound can effectively improve the light extraction efficiency of an organic optoelectronic device, improve external quantum efficiency (EQE), implement display at various angles, and can effectively alleviate a color cast.
提供的是一种化合物,一种有机电致发光器件的材料以及其应用。该化合物的结构是通过在由式I表示的结构的任何可替代位置上用至少一个氰基取代而形成的。该化合物在可见光区域(400-750纳米)具有相对较高的折射率和降低的消光系数K。当用于有机电致发光器件,特别是作为封顶层材料时,该化合物可以有效提高有机光电子器件的光提取效率,提高外部量子效率(EQE),实现各种角度的显示,并可以有效减轻色偏。