公开(公告)号：US20170179394A1

公开(公告)日：2017-06-22

申请号：US15449497

申请日：2017-03-03

Applicant: Universal Display Corporation

Inventor： JASON BROOKS ,  Chuanjun XIA ,  Raymond KWONG ,  James FIORDELISO

IPC: H01L51/00 ,  C07C15/38 ,  C09K11/02 ,  H01L51/50

CPC classification number: H01L51/0054 ,  C07C15/38 ,  C07C2603/42 ,  C07D307/91 ,  C07D333/76 ,  C07D409/04 ,  C09B57/00 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  H01L51/004 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5024 ,  H01L2251/552 ,  H05B33/14

Abstract: A compound having the structure of Formula I is disclosed. In the structure of Formula I, each of R1, R2, and R3 is independently a hydrogen, a non-fused aryl group having one meta-substituent, or a non-fused heteroaryl six-membered ring having one or more meta-substituents; each meta-substituent is a non-fused aryl or non-fused heteroaryl six-membered ring optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups; and at least one of R1, R2, and R3 is a non-fused aryl having one meta-substituent or a heteroaryl six-membered ring having at least one meta-substituent, wherein each meta-substituent is a non-fused aryl or non-fused heteroaryl group further substituted with a chain of at least two non-fused aryl or non-fused heteroaryl groups. The compounds may be useful in phosphorescent organic light emitting devices.