ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    公开(公告)号:US20210380617A1

    公开(公告)日:2021-12-09

    申请号:US17316895

    申请日:2021-05-11

    Abstract: A compound comprising a ligand LA of Formula I, is disclosed. In Formula I, each of Z1, Z2, Z3, Z4, Z5, and Z6 is C or N; K is selected from a direct bond, O, and S; if K is O or S, then Z6 is C; ligand LA is coordinated to a metal by the dash lines; M is coordinated to at least one other ligand; L1 is an organic linker; if M is selected from Ru, Os, or Ir, then K is O or S; if M is selected from Pt, Pd, Cu, Ag, or Au, and K is a direct bond, then M forms at least one bond to oxygen or sulfur; when M is selected from Pt, Pd, Cu, Ag, or Au, and K is O or S, then L1 is selected from —CR═N—, —CR′R″CR′R″—, —NR′BR′—, —CR′R″O—, —CR′R″S—, —CR′═CR″O—, —CR′═CR″S—, —CR′═CR′NR—, —CR′═CR″CR2—, —C(═N—)—, and —C(═CR—)—.

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