申请人:Universal Display Corporation
公开号:US20170092880A1
公开(公告)日:2017-03-30
A compound having a formula M(L
A
)
x
(L
B
)
y
(L
C
)
z
is provided. In the compound of M(L
A
)
x
(L
B
)
y
(L
C
)
z
, ligand L
A
is
ligand L
B
is
and ligand L
C
is
In addition, M is a metal having an atomic mass greater than 40, x is 1, 2, or 3, and y and z are independently 0, 1, or 2. In the compound, Z
5
is carbon or nitrogen; one of Z
1
to Z
4
is nitrogen and three of Z
1
to Z
4
are carbon substituted by R
B
, and rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring. Each R
A
, R
B
, R
C
, and R
D
is independently selected from a group of substituents, where at least one R
B
is heteroaryl, which can be further substituted, and any adjacent substitutents are optionally joined or fused into a ring. Formulations and devices, such as OLEDs, that include the first compound are also provided.
提供了一种化合物,其化学式为M(LA)x(LB)y(LC)z。在M(LA)x(LB)y(LC)z的化合物中,配体LA是,配体LB是,配体LC是。此外,M是具有大于40的原子质量的金属,x为1、2或3,y和z分别独立为0、1或2。在该化合物中,Z5为碳或氮;Z1至Z4中的一个为氮,Z1至Z4中的三个被RB取代的是碳,并且环C和D各自独立为5或6元的碳环或杂环。每个RA、RB、RC和RD都是从一组取代基中独立选择的,其中至少一个RB是杂环芳基,可以进一步取代,并且任何相邻的取代基可以选择性地连接或融合成环。还提供了包括第一化合物的制剂和设备,例如OLEDs。