申请人:Universal Display Corporation
公开号:US20190252623A1
公开(公告)日:2019-08-15
A compound of Formula I
wherein
Y is selected from the group consisting of NAr, O, S, and Se; Ar is an optionally substituted aryl or optionally substituted heteroaryl; and Z
1
to Z
8
are independently selected from C or N, wherein at least one of Z
2
or Z
3
is C, and at least one of Z
6
or Z
7
is C. R is selected from the group consisting of deuterium, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof; or optionally R can join with Ar to from a ring; and
with the provisios that R is not N-methyl-benzimidazole, and the compound is not compound A.