Organic electroluminescence device and monoamine compound for organic electroluminescence device
申请人:Samsung Display Co., Ltd.
公开号:US11489125B2
公开(公告)日:2022-11-01
An organic electroluminescence device of an embodiment includes a first electrode, a second electrode provided on the first electrode, and a plurality of organic material layers provided between the first electrode and the second electrode, wherein at least one organic material layer among the plurality of organic material layers include a monoamine compound, and the monoamine compound includes a core structure including two condensed rings which are combined to form a spiro structure, where each condensed ring has a condensed structure of three or more pentagonal or hexagonal rings. High emission efficiency may be achieved.
一个实施例中的有机电致发光器件包括第一电极、设置在第一电极上的第二电极以及设置在第一电极和第二电极之间的多个有机材料层,其中多个有机材料层中的至少一个有机材料层包括单胺化合物,单胺化合物包括包括两个缩合环的核心结构,这两个缩合环组合在一起形成螺环结构,其中每个缩合环具有三个或更多五边形或六边形环的缩合结构。可实现较高的发射效率。