Abstract: Tetradentate platinum complexes including an imidazole/benzimidazole carbene having a structure of Formula I is disclosed. In Formula I, M is Pd or Pt. These platinum carbenes with the specific substituents disclosed herein are novel and provides phosphorescent emissive compounds that exhibit physical properties that can be tuned, such as sublimation temperature, emission color, and device stability.

Abstract: A compound having a first ligand LA including a structure of Formula I, In Formula I, each of X1 to X3 is C or N; X6 is CR6 or N; X4? is a linking group; Y and L1? are linking groups; K1? is a linking group; when present, moieties C and D are each a monocyclic ring or polycyclic fused ring system; each substituent is hydrogen or a General Substituent defined herein; and LA is coordinated a metal M through the indicated dashed lines. Compositions, OLEDs, and consumer products containing the same are also provided.

Abstract: Provided are organometallic compounds comprising a platinum or palladium atom as the central metal atom which is coordinated by an at least tetradentate ligand comprising at least two 5-membered to 10-membered carbocyclic or heterocyclic rings. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

Abstract: Provided are organometallic compounds comprising a platinum or a palladium atom as the central metal atom which is coordinated by an at least tetra-dentate ligand comprising at least two 5-membered to 10-membered carbocyclic or heterocyclic rings. Also provided are formulations comprising these organometallic compounds. Further provided are organic light-emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

Abstract: Provided are organometallic compounds which comprise a central metal atom which is coordinated by am at least two-dentate ligand comprising at least two 5-membered to 10-membered carbocyclic or heterocyclic rings which are connected by a direct bond. Also provided are compositions comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

Abstract: Provided are bisoxaborinine compounds. The compound comprises a structure of Formula I Also provided are formulations comprising these bisoxaborinine compounds. Further provided are OLEDs and related consumer products that utilize these bisoxaborinine compounds. The OLEDs comprise an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein the organic layer comprises the compound of Formula I.

Abstract: A compound is provided that has a formula of Ir(LA)m(LB)n(LC)o, where each of LA, LB, and LC is a bidentate ligand; m is 1, 2, or 3, n and o are 0, 1, or 2, and m+n+o=3. In the formula, one of LA or, when present, LB comprises a structure of Formula I, where at least one RA or RB comprises a structure of Formula II, where each of Z1 to Z4 is C or N; each of moieties A, B, C, and D is a monocyclic ring or a polycyclic fused ring system; each RA, RB, RC, RD, and RN is hydrogen or a General Substituent as defined herein; and at least one RC, RD, or RN includes an electron-withdrawing group. Compositions, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are organic compounds comprising at least two fused 6-membered rings wherein a same boron atom is part of both fused 6-membered rings and wherein at least one of the two fused 6-membered rings further contains a nitrogen atom. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organic compounds.

Abstract: Provided are 2-coordinate metal complexes compounds as sensitizers of fluorophores. Also provided are formulations comprising these 2-coordinate metal complexes compounds. Further provided are OLEDs and related consumer products that utilize these 2-coordinate metal complexes compounds. The OLED includes an emissive region that contains a first compound that is a sensitizer having a structure of and an acceptor.

Abstract: A compound of Formula Ir(LA)x(LB)y(LC)z is provided where LB and LC are each independently a bidentate ligand; first ligand LA comprises a structure of Formula I, and at least one RC substituent is R*, which comprises a structure of Formula II, In the Formula Ir(LA)x(LB)y(LC)z, each of moiety A, moiety C, and, when present, moiety D is a monocyclic ring or a polycyclic fused ring system; each of Z1, Z2, and X1 to X4 is C or N; K is a single bond or a linker; Y is a linking group; each of Y1 and Y2 is selected from O, S, Se, B, or N; Z is C, B, N, O, Si, or P; if Z is C, then Y1 and Y2 are N; L is a direct bond or an organic linker; and each substituent is hydrogen or a General Substituent defined herein. Compositions, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided organic light emitting device (OLED) comprising compounds having Formula I: wherein rings A, B, C, D, E, and F are each independently a single or fused ring system, consisting of one or more 5-membered or 6-membered carbocyclic or heterocyclic rings; L1, L2, L3, L4, L5, and L6 are each independently optionally present or is selected from the group consisting of O, S, Se, BR, BRR?, NR, C?R, CRR?, SiRR?, P(O)R, and GeRR?; a, b, c, d, e and f are each 0 for not present or 1 for present; each of R, R?, R1, R2, R3, R4, R5, and R6 is independently a hydrogen or a substituent; and any two of adjacent R, R?, R1, R2, R3, R4, R5, and R6 can be joined or fused to form a ring. The compound is an ETL.

Abstract: A compound including a first bidentate ligand LA that includes a structure of Formula I, are provided. The ligand LA is coordinated to a metal M and can be joined with other ligands. In Formula I, in addition to some exclusions, each of X1, X2, X3, and X4 is C or N; two R1, R2, and R3 can be joined or fused to form a ring; and each R1, R2, and R3 is independently a group containing the metal M, a hydrogen, or a General Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided is an OLED that includes in its emissive region a first compound, a second compound, and a third compound, where the first compound is capable of functioning as a phosphorescent emitter in an OLED at room temperature, the second compound meets at least one of the following conditions: (1) the second compound is capable of functioning as a TADF emitter in an OLED at room temperature; and (2) the second compound is capable of forming an exciplex with the first compound in an OLED at room temperature, and the third compound is a fluorescent compound that functions as an emitter in the OLED of the present disclosure at room temperature.

Abstract: Provided are organic compounds comprising a boron atom as the central atom which is bonded to three 6-membered aromatic carbocyclic or heterocyclic rings. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organic compounds.

Abstract: Provided are organometallic compounds comprising as a central metal atom a platinum or palladium atom which is coordinated by a tetradentate ligand comprising at least two 5-10-membered rings which are coordinated to the central metal atom. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

Abstract: Provided are organometallic compounds comprising as the central metal atom a platinum or palladium atom which is coordinated by a tetradentate ligand comprising at least two 6-membered aromatic rings which are connected via an nitrogen atom. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

Abstract: Provided are organometallic compounds comprising a platinum atom as the central metal atom which is coordinated by two bidentate ligands which may be linked to comprise a tetradentate ligand. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

Abstract: A compound comprising a structure of Formula I, is provided. In Formula I, each of moiety A and, when present, moiety D is a monocyclic ring or a polycyclic fused ring system; M is Pt or Pd; each of X1 to X10, Z1, and Z2 is C or N; each of L1 and L2 is a direct bond or a linking group; each of K1, K2, and K3 is a direct bond or a linking group; Y2 is a linking group; at least one pair of RC are joined or fused to form a 5-membered or 6-membered aromatic ring, which can be further fused or substituted; each R substituent is hydrogen or a General Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are organometallic compounds comprising a platinum atom or a palladium atom as the central metal atom which is coordinated by a tetradentate ligand comprising at least four aromatic 6-membered rings and at least one nitrogen-containing 5-membered ring. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.