Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, moiety C is a monocyclic ring or fused polycyclic system; each of X1 to X6 is C or N; K is a direct bond or a linker; at least one of RB or RC has the formula -L-SiR1R2R3, or -L-GeR1R2R3; L is a direct bond or an organic linker; each R?, R?, R1, R2, R3, RA, RB, and RC is hydrogen or a General Substituent defined herein; LA is coordinated to a metal M by the dashed lines in Formula I; and M has an atomic mass of at least 40 and may be coordinated to other ligands. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound including a first ligand LA selected from the following group: is disclosed.

Abstract: An OLED structure including a first organic layer disposed between the anode and the cathode is disclosed. The first organic layer includes a primary phosphorescent emitter and a first host, and where one of the following conditions is true: (1) the first organic layer further includes a secondary emitter; or (2) the OLED further includes a second organic layer disposed between the anode and the cathode, wherein the second organic layer includes a secondary emitter. The phosphorescent emitter has a peak emission wavelength ?max that is ?600 nm and ?750 nm, the secondary emitter has a peak emission wavelength ?max that is ?750 nm, and the first host has a lowest excited state triplet energy T1 that is at least 0.1 eV higher than that of the primary phosphorescent emitter.

Abstract: Provided are compounds comprising first ligands LA being hetero-benzofused ligands of Pt and Ir complexes for OLED applications. Also provided are formulations comprising these compounds comprising first ligands LA being hetero-benzofused ligands of Pt and Ir complexes for OLED applications. Further provided are OLEDs and related consumer products that utilize these compounds comprising first ligands LA being hetero-benzofused ligands of Pt and Ir complexes for OLED applications.

Abstract: A compound having a formula of M(LA)p(LB)q(LC)r, where LA has a structure of Formula I, LB is a bidentate ligand; and LC has a structure of Formula II, is provided. In Formula I and Formula II, the compound can be homoleptic or heteroleptic and can include up to three different ligands; K3 and K4 are each independently a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); each of moiety A and moiety B represents a monocyclic ring or a polycyclic, fused-ring structure; each of Z1 and Z2 is C or N; and at least one of RA, RB, RC1, RC2, or RC3 comprises a structure of Formula III, In Formula III, L is bivalent organic linker, and Z is Si or Ge. Each RA, RB, RC1, RC2, and RC3 is independently hydrogen or a General Substituent, and each of R1, R2, and R3 is a General Substituent. Formulations, OLEDs, and consumer products including such compounds are also provided.

Abstract: New organometallic complexes having bis- or tris-heteroleptic ligands and large aspect ratio in one direction and their use in OLEDs to enhance the efficiency is disclosed.

Abstract: A compound having a structure of formula Ir(LA)m(LB)n, where ligand LA has Formula I and ligand LB has Formula II that is useful as an emitter in OLEDs is disclosed.

Abstract: A heteroleptic compound of Formula Ir(LA)x(LB)y is provided, where LA has Formula I, and a structure of Formula II, is bonded to two adjacent C atoms selected from X1, X2, X3, and X4 by the dashed lines to form a fused ring; and LB is selected from the group consisting of

Abstract: A compound comprising a first ligand LA of Formula I, wherein; two adjacent RA are joined together to form a structure of Formula II, fused to ring A is provided. In Formulas I and II, each of X1 to X4 is C or N; K is a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); Y1 is a linking group that forms a five-membered ring with ring A; Y2 is CR? or N; Z is linking group selected from O, S, Se, CRZRZ?, SiRZRZ?, GeRZRZ?, PRZ, NRZ and combinations thereof; and each R, R?, R?, R?, R?, RA, RB, RC, RZ, and RZ? is hydrogen or a General Substituent. Formulations, OLEDs, and consumer products containing the same are also provided.

Abstract: A compound comprising a first ligand LA of Formula I, and a structure of Formula II, is provided. Formula II is fused to ring A by two adjacent ones of X1 to X4, which are both C. In Formula I and II, X1 to X4 are C or N; K is a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); moiety E is H or D; C1 is C; each of moiety B and moiety C is independently a ring or a fused ring system; each R?, R?, RA, RB, and RC is hydrogen or a General Substituent; and LA is coordinated to a metal M with an atomic mass of at least 40. If moiety C is a 6-membered ring, then moiety B is a fused ring system and then all the RC substituents comprise two or more of combined carbon atoms. Formulations, OLEDs, and consumer product including the compound are also provided.

Abstract: Novel metal complexes incorporating boron-containing aromatic compounds useful as a phosphorescent OLED material are disclosed.

Abstract: A compound including a ligand LA of Formula I, where C1 and C2 are carbon atoms and a moiety of Formula II, is bonded to one of C1 and C2 by the two dashed lines in Formula II is provided. The variables in Formulae I and II are as defined in the present disclosure.

Abstract: A compound, Ir(LA)2(LC), having a structure of Formula I, where two adjacent ones of X1, X2, X3, and X4 are C and are joined to a structure of Formula II, by the dashed lines is provided. In Formulas I and II, each of X1 to X4 is C or N; moiety B is a monocyclic ring or a fused ring system; Z is C or N; Y is CRR?, SiRR?, GeRR?, BR, or BRR?; R* is hydrogen or deuterium; each R, R?, RA, RB, R1, R2, and R3 is hydrogen or a General Substituent; RC is selected from a variety of substituents; and any two substituents can be joined or fused to form a ring. Formulations, OLEDS, and consumer products including the compound are also provided.

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(R?), P(R?), B(R?), C(R?), C(R?)(R?), and Si(R?)(R?); each R, R?, R?, R?, 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.

Abstract: A compound having a structure of Formula I is disclosed, where at least one of R1 and R2 that is ortho to a boron atom of Formula I comprises a structure selected from (9-carbazolyl)-carbazole, indolocarbazole, triphenylene, fluorene, dibenzothiophene, dibenzofuran, dibenzoselenophene, pyridine, pyrimidine, triazine, aza-triphenylene, aza-fluorene, aza-carbazole, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene.

Abstract: The present disclosure provides a metal coordination complex compound. The metal complex compound is capable of functioning as an emitter in an organic light emitting device (OLED) at room temperature, and has a vertical dipole ratio (VDR) greater than 0.33 in the OLED. Formulations, OLEDs, and consumer products including the same are also provided.

Abstract: A compound including a first ligand LA of is disclosed. In the structure of Formula I, one of L1 and L2 is C, and the other is N; Y1 to Y14 are each C or N; at least two adjacent Y7, Y8, Y9, and Y10 are carbon atoms that are fused to a structure of Z1 and Z2 are each O, S, Se, NR, CRR?, or SiRR?; and each R, R?, RA, RB, RC, and RD is hydrogen or a substituent; and any two substituents may be joined or fused together to form a ring. In the compound, LA is complexed to a metal M by L1 and L2, and M has an atomic weight greater than 40. Organic light emitting devices and consumer products containing the compounds are also disclosed.

Abstract: A neutral compound including a first ligand LA represented by Formula I or Formula II is disclosed.

Abstract: A compound comprising a first ligand LA of Formula I, where at least one RA or RB substituent has a structure according to Formula II, is provided. In Formula I and Formula II, moieties A, B, and C are independently rings or a fused-ring systems; each of X1, X2, Z1, Z2, X3, and Z4 is C or N; K a direct bond or selected from the group consisting of O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); L is a linker; n is 1, 2, or 3; each R, R?, R?, R?, RA, RB, RC, RL, and RL? is independently hydrogen or a General Substituent; and at least one R or R? is a fully or partially fluorinated alkyl group, a fully or partially fluorinated cycloalkyl group, a cyano group, a cyanoalkyl group, or a silyl group. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound including a first ligand LA having a structure of Formula I is disclosed. The compound is useful a an emitter dopants in OLEDs for enhancing the OLED performance.