ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    公开(公告)号:US20240409807A1

    公开(公告)日:2024-12-12

    申请号:US18650332

    申请日:2024-04-30

    Abstract: This disclosure provides a compound, Ir(LA)p(LB)q(LC)r, where LA has a structure of Formula IA: LB has a structure of Formula IB: and LC is a bidentate ligand. In Formulas IA and IB, p and q are 1 or 2; r is 0 or 1; and p+q+r=3; moiety A is a monocyclic ring or a polycyclic fused ring system; Y is a linker that forms a 5-membered ring; each of Z1, Z2, and X1 to X16 is C or N; each substituent is hydrogen or a General Substituent defined herein; and at least one of RD or RE is a heterocycle, provided that (a) if RE is a heterocycle comprising one heteroatom, then p=1 and moiety A is not a fused imidazole; and (b) if one RD is pyridine, then each of X1-X8 is C. Formulations, OLEDs, and consumer products containing the compound are also provided.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    公开(公告)号:US20240343970A1

    公开(公告)日:2024-10-17

    申请号:US18062668

    申请日:2022-12-07

    CPC classification number: C09K11/06 H10K50/11 H10K85/346 C09K2211/185

    Abstract: Compounds of Formula I,




    are provided. In Formula I, M is Pd or Pt; each of X1 to X14 is C or N; one of Z1 and Z2 is C and the other is N; Y is selected from O, S, Se, N*R, CRR′, SiRR′, or GeRR′; K1 is a direct bond, O, or S; each R, R′, RA, RB, RC, and RD is independently hydrogen or a substituent; at least one of R, R′, RA, RB, RC, or RD is a substituent R*; and (i) R* comprises a 5-membered or 6-membered heterocyclic ring, or (ii) R* comprises Formula Ia:




    Formula Ia;



    wherein each of RY and RZ independently represents mono to the maximum allowable substitution, or no substitution;
    R1, R2, R3, R4, RY and RZ is independently hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, germyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, boryl, selenyl, and combinations thereof;
    wherein at least one of R1, R2, R3, and R4 is not hydrogen. Formulations, OLEDs, and consumer products including the compound are also provided.

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