ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    公开(公告)号:US20230422595A1

    公开(公告)日:2023-12-28

    申请号:US18326729

    申请日:2023-05-31

    CPC classification number: H10K85/342 H10K50/82 H10K50/81 C07F15/0033

    Abstract: A compound comprising a first ligand LA of




    where two adjacent ones of X1 to X4 are C and are fused to a structure selected from the group consisting of




    and provided. In ligand LA, each of X1 to X4 and Z to Z2 is C or N; moiety B is a fused ring system comprising two or more rings; each of Y1 and Y2 is a bridging moiety; K is selected from the group consisting of a direct bond, O, S, N(Rα), P(Rα), B(Rα), C(Rα), C(Rα)(Rβ), and Si(Rα)(Rβ); each R, R′, Rα, Rβ, RA, RB, and RC is a hydrogen or a General Substituent; and LA is coordinated to a metal M having an atomic mass of at least 40. Formulations, OLEDs, and consumer products containing the compound are also provided.

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