申请人:Universal Display Corporation
公开号:US11180519B2
公开(公告)日:2021-11-23
A compound comprising a first ligand LA of Formula I,
is disclosed. In the structure of Formula I, ring A is a 5-membered or 6-membered carbocyclic or heterocyclic ring; Z1-Z4 are each independently C or N; at least two consecutive Z1-Z4 are C, and are fused to a structure of
or
Y1 and Y2 are each independently O, S, Se, CRR′, SiRR′, or GeRR′; each RA, RB, RC, 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, LA 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.
一种由式 I 的第一配体 LA 组成的化合物、
的化合物。在式 I 的结构中,环 A 是 5 元或 6 元碳环或杂环;Z1-Z4 各自独立地是 C 或 N;至少两个连续的 Z1-Z4 是 C,并融合成以下结构
或
Y1和Y2各自独立地为O、S、Se、CRR′、SiRR′或GeRR′;RA、RB、RC、R和R′各自为氢或取代基;任意两个取代基可连接或融合在一起形成环。在化合物中,LA 通过式 I 中的虚线与金属 M 复配,形成五元螯合环,M 的原子量大于 40。此外,还公开了含有该化合物的有机发光器件和消费品。