Abstract: Provided are ortho-substituted biphenyl compounds with one or more bicarbazole linkages. Also provided are formulations comprising these ortho-substituted biphenyl compounds. Further provided are OLEDs and related consumer products that utilize these ortho-substituted biphenyl compounds.

Abstract: Provided are organometallic compounds comprising at least a germanium containing group in the compound, wherein the germanium containing group is linked via a linker to a moiety containing at least one aromatic group. 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: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, ring A is a 5-membered or 6-membered ring; K is a direct bond, O, or S; X1 to X8 are independently C or N; Y is a linker that forms a 5-membered ring between rings B and C; Z1 and Z2 are C or N; each R, R?, R?, RA, RB, RC, and R1 is a hydrogen or a General Substituent; LA is coordinated to a metal M by the dashed lines; and (i) at least one RC is a cyclic group that is not fused to ring C, or (ii) ring A has a structure of Formula II, and ring A is bonded to ring B at X1; or (iii) both (i) and (ii). Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided is a compound comprising a first ligand LA having a structure of Formula I, wherein the variables are defined herein. Also provided are formulations and products containing a compound comprising a structure of Formula I.

Abstract: Provided are compounds capable of functioning as an emitter in an organic light emitting device at room temperature, and their use in OLED related electronic devices.

Abstract: A compound of Formula I wherein X1 and X2 are independently CRX or N, and at least one of X1 or X2 is CRX; Y is selected from the group consisting of O, S, Se, NR?, BR?, CR?R?, and SiR?R?; R?, and R? are each independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, aryl, heteroaryl, and combinations thereof; R is selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; RA, and RC each independently represent mono to the maximum allowable substitution, or no substitution; and each RX, RA, and RC is independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, si

Abstract: A compound of Formula I wherein: ring B is a 5-membered heterocyclic ring, or a 6-membered carbocyclic ring; each of X1 and X2 is independently C, CR, or N, with at least one of them being C; each of X3-X11 is independently C, CR, or N, with at least one of them being N, and two adjacent of X3-X7 are carbon-fused to the shown moiety through the linkage indicated by the two squiggly lines; Y is selected from the group consisting of O, S, Se, NR?, CR?R?, and SiR?R?; each of RA and RB independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each of R, R?, R?, RA, and RB is independently a hydrogen or a substituent selected from the group consisting of —SiR1R2R3 or —GeR1R2R3, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinat

Abstract: Provided are organometallic compounds comprising a polycyclic structure with at least two heteroaromatic rings, wherein at least two nitrogen-containing groups are bonded to a first of the at least two heteroaromatic rings and at least group RA selected from NR5R6 or SiR7R8R9 is bonded to a second of the at least two heteroaromatic rings. 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 novel compounds having a structure of that are useful as emitters in OLEDs.

Abstract: A compound of a first ligand LA of Formula I, is provided. In Formula I, moieties A and B are each a monocyclic ring or a polycyclic fused-ring system; Z1 to Z4 are each C or N; K is a direct bond, O, or S; each RA and RB is independently a hydrogen or a General Substituent; at least one RA or RB is R*, wherein R* has a structure of Formula II, —L—GeR1R2R3; L is a direct bond or an organic linker; and LA is coordinated to a metal M by the dashed lines; and metal M is selected from Ir, Rh, Re, Ru, Os, Pt, Pd, Ag, Au, or Cu.

Abstract: Provided are organic compounds which comprise a pyrrole or imidazole ring which is fused to a 6-membered ring as well as to a further 5- or 6-membered ring, and wherein the pyrrole or imidazole nitrogen is further substituted with a 6-membered ring. Also provided are formulations comprising these organic compounds. Further provided are organic light-emitting devices (OLEDs) and related consumer products that utilize these organic compounds.

Abstract: Tetradentate platinum complexes comprising 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: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize both a disclosed compound and a Pt complex compound.

Abstract: Provided are organometallic compounds comprising a polycyclic structure with at least three aromatic rings, wherein the compound comprises at least one nitrile group and further contains as a central moiety a group selected from B, Al, Ga, In, SiR, GeR, SnR, P, P?O, As, Sb, and Bi. 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: A compound having the following formula is disclosed. The compound is useful as an emitter in OLED applications.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, rings A and B are 5- or 6-membered ring; K1 and K2 are each independently selected from the group consisting of a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); Z1, Z2, X1 and X2 are C or N; Y1*, Y2*, Y3*, Y4*, and Y5* are selected from a variety of moieties; n is 0 or 1; Y5* is bonded directly to X2 when n is 0; each R?, R?, R, R?, R1, R2, RA, and RB is hydrogen or a substituent; each independently represents a single bond or double bond in a Lewis structure; and LA is coordinated to a metal M, which may be coordinated to other ligands. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are compounds comprising a plurality of chemical groups, wherein the compound comprises a first ring, wherein the first ring is formed by connecting the plurality of chemical groups one by one with a direct bond to each other in a manner to form one or more closed rings, wherein the first ring is a ring which has a minimum number of a plurality of ring atoms in the one or more closed rings. Also provided are formulations comprising these compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these compounds.

Abstract: Provided is a compound having a formula of Ir(LA*)m(LB*)n(LC*)p; wherein each LA, LB, and LC is independently a monoanionic bidentate ligand and different from each other; n and p each is independently 0, 1, or 2; m is 1 or 2; and m+n+p is 3; a free-state of LA has a first triplet energy T1 of EA at 77K; a free-state of LB has a first triplet energy T1 of EB at 77K; a free-state of LC has a first triplet energy T1 of EC at 77K; EA is less than EB and EC whichever EB and EC is present; LA comprises at least one ?-electron deficient electron-withdrawing group; and the compound has an emission spectrum with a FWHM value of no more than 45 nm. Also provided is a compound comprising a first ligand LA having a structure of Formula I, wherein the variables are defined herein.

Abstract: A compound comprising a first ligand LA of Formula I is provided. In Formula I, each of moiety A and moiety B is a monocyclic ring or a polycyclic fused ring system; each of Z1 to Z4 is C or N; one of K1 or K2 is a direct bond, and the other is a direct bond or a linker; L is a linker; each R?, R?, R, R?, RA, and RB is a General Substituent defined herein; LA is coordinated to a metal M; and the compound includes at least a silyl group, a germyl group, or an electron-withdrawing group. Formulations, OLEDs, and consumer products containing the same are also provided.

Abstract: A compound of Formula I, is provided. In Formula I, moiety A and moiety B are monocyclic rings or polycyclic ring structures; X1 and X2 are C or N; each RA, RB, RC, RD, RE, RF, and RX is hydrogen or a substituent; at least one of RA, RB, RC, RD, RE, RF, and RX comprises a silyl group; if n=1, then RD is joined with RF to form a ring; if n=0 and m=1, then RD is joined with either RE or RA to form a ring, with the proviso that if RD is joined to RA, then RX is a substituted or unsubstituted aryl or heteroaryl group; and if n=0 and m=0, then the compound has the structure of Formula V, Formulations, OLEDs, and consumer products comprising the compound are also provided.