ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    公开(公告)号:US20210399242A1

    公开(公告)日:2021-12-23

    申请号:US17412578

    申请日:2021-08-26

    Abstract: A compound having a structure of Formula I, useful as a phosphorescent emitter in organic light emitting devices is disclosed. In Formula I, Ar1 and Ar2 are independently 5- or 6-membered aromatic rings; X1 to X11 are independently C or N; at least one of X1 to X11 is N; one of Z1 and Z2 is C, and the other one is N; when Z1 is N, X4 is C; L1, L2, and L3 are each linkers; at least one of L2 and L3 is present; each of R1 to R5, R′, and R″ are independently hydrogen or a substituent. Formulations, OLEDs, and consumer products containing the same are also disclosed.

    Organic electroluminescent materials and devices

    公开(公告)号:US10312450B2

    公开(公告)日:2019-06-04

    申请号:US15449497

    申请日:2017-03-03

    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.

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