申请人:Universal Display Corporation
公开号:US20190248818A1
公开(公告)日:2019-08-15
A compound comprising a first ligand L
A
of Formula I,
is disclosed. In the structure of Formula I, ring A is a 5-membered or 6-membered carbocyclic or heterocyclic ring; Z
1
-Z
4
are each independently C or N; at least two consecutive Z
1
-Z
4
are C, and are fused to a structure of
or
Y
1
and Y
2
are each independently O, S, Se, CRR′, SiRR′, or GeRR′; each R
A
, R
B
, R
C
, R, and R′ is a hydrogen or a substituent; and any two substituents may be joined or fused together to form a ring. In the compound, L
A
is complexed to a metal M by the dashed lines in Formula I to form a five-membered chelate ring, and M has an atomic weight greater than 40. Organic light emitting devices and consumer products containing the compounds are also disclosed.
揭示了一种包括第一配体LA的化合物。在公式I的结构中,环A是一个5元或6元碳环或杂环;Z1-Z4分别独立地是C或N;至少两个连续的Z1-Z4是C,并且与结构oforY1和Y2熔合;Y1和Y2分别独立地是O、S、Se、CRR′、SiRR′或GeRR′;每个RA、RB、RC、R和R′是氢或取代基;任意两个取代基可以连接或熔合在一起形成环。在该化合物中,LA通过公式I中的虚线与金属M络合形成一个五元螯合环,且M的原子量大于40。还揭示了含有这些化合物的有机发光器件和消费品。