申请人:Universal Display Corporation
公开号:US10312450B2
公开(公告)日:2019-06-04
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.
具有式 I 结构的化合物
的化合物。在式 I 的结构中,R1、R2 和 R3 中的每一个独立地是氢、具有一个元取代基的非融合芳基或具有一个或多个元取代基的非融合杂芳基六元环;每一个元取代基是可选地被选自由非融合芳基、非融合杂芳基和烷基组成的组中的进一步取代基取代的非融合芳基或非融合杂芳基六元环;R1、R2 和 R3 中至少有一个是具有一个元取代基的非融合芳基或具有至少一个元取代基的杂芳基六元环,其中每个元取代基是被至少两个非融合芳基或非融合杂芳基的链进一步取代的非融合芳基或非融合杂芳基。这些化合物可用于磷光有机发光器件。