申请人:Samsung Display Co., Ltd.
公开号:US20200358009A1
公开(公告)日:2020-11-12
An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The emission layer includes at least one organometallic compound of Formula 1, and at least one selected from a second compound and a third compound, where the organometallic compound, the second compound, and the third compound are different from each other. When the emission layer comprises both the second compound and the third compound, the second compound and the third compound form an exciplex, and the organometallic compound and the second compound and/or the third compound do not form an exciplex:
M(L
1
)
n1
(L
2
)
n2
, Formula 1
wherein in Formula 1, L
1
is represented by Formula 2-1:
有机发光器件包括:第一电极;面向第一电极的第二电极;以及位于第一电极和第二电极之间的有机层,该有机层包括一个发射层。发射层包括至少一种来自第一式的有机金属化合物,以及来自第二化合物和第三化合物中的至少一种,其中有机金属化合物、第二化合物和第三化合物彼此不同。当发射层包括第二化合物和第三化合物时,第二化合物和第三化合物形成一个激发复合物,而有机金属化合物和第二化合物和/或第三化合物不形成激发复合物:M(L1)n1(L2)n2,其中在第一式中,L1由第二式-1表示: