Abstract: A compound, Ir(LA)(LB)(LC), having a structure of Formula I, is provided. In Formula I, LA includes moieties E and F, LB includes moieties A and B, and LC includes moieties C and D. In addition, moieties A, B, C, D, E, and F are independently monocyclic rings or polycyclic fused ring systems; each of Z1 to Z6 is C or N; three of Z1 to Z6 form covalent bonds to Ir, while the remaining three form dative bonds to Ir; one of Z2 and Z3 forms a covalent bond to Ir, and the other forms a dative bond to Ir; each of L1, L2, L3, and L4 is a direct bond or an organic linker; and each RA, RB, RC, RD, RE, and RF is hydrogen or a General Substituent.

Abstract: A composition of materials including a first compound having a structure according to Formula I

Abstract: A compound of Formula I wherein Y is selected from the group consisting of NAr, O, S, and Se; Ar is an optionally substituted aryl or optionally substituted heteroaryl; and Z1 to Z8 are independently selected from C or N, wherein at least one of Z2 or Z3 is C, and at least one of Z6 or Z7 is C. R is selected from the group consisting of deuterium, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, aryl, heteroaryl, nitrile, isonitrile, sulfanyl, and combinations thereof; or optionally R can join with Ar to from a ring; and with the provisios that R is not N-methyl-benzimidazole, and the compound is not compound A.

Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: Ligands with fused spirocyclic substitutions and metal complexes formed with such ligands and having improved performance in OLED applications are disclosed.

Abstract: A compound comprising a ligand LA coordinated to a metal M, the ligand LA selected from the group consisting of Formula I, Formula II, and Formula III ring A is a 5- or 6-membered carbocyclic or heterocyclic ring; wherein ring A of Formula I connects to ring B at X1, X2, or X3 to form a five-membered chelate ring with the metal; Z1 and Z2 are independently selected from C or N; and X1 to X10 are independently selected from C or N. An organic light emitting device (OLED) comprising an anode, a cathode and an organic layer disposed between the anode and the cathode, the organic layer comprising a compound selected from Formula I, Formula II, or Formula III, and a consumer product comprising the OLED.

Abstract: A compound of Formula Ir(LA)x(LB)y(LC)z is provided, where x is 1 or 2, each of y and z is 0, 1, or 2, at least one of y and z is not 0, and x+y+z=3. Ligand LA has a structure of Formula I, where LB and LC are bidentate ligands; LA, LB, and LC are different; ring B is a 5-membered or 6-membered ring; each of X1 to X10 is C or N; ring C is bonded to ring A1 by a C; each RA, RB, and RC is independently hydrogen or a General Substituent; with the exception that no RB can be joined or fused to an RC, any two substituents may be joined or fused to form a ring; and at least two RC substituents are joined together to form a fused ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound of Formula I, is provided where moieties B and D are monocyclic or polycyclic rings; M is Pt or Pd; each of X1 to X7, Z1, and Z2 is C or N; Y1 and Y2 are each independently linking groups; L1 and L2 are each independently absent a bond, a direct bond, or a linking group; K is selected from the group consisting of a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?). Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, each of X1 to X12 is C or N; Y is a linking group; each RA, RB and RC can be hydrogen or a substituent; at least one RA, RB or RC comprises an electron-withdrawing group; and LA forms a 5-membered chelate ring with an Ir atom via the dashed lines. In addition a number of conditions must be met based on whether or not any pair of RA is joined to form a ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: A compound having a first ligand LA of Formula I useful as phosphorescent dopant in OLEDs is disclosed.

Abstract: Provided are compounds of Formula Ir(LA)m(LC)n or Pt(LA)(LB), and also provided are OLED devices using those compounds.

Abstract: Provided are compounds that include a ligand LA of the following Formula III: that contain heavy elements like Sb, Bi, Ge, or Te. Also provided are formulations including such compounds. Further provided are OLEDs and related consumer products that utilize such compounds.

Abstract: Provided are transition metal compounds having 5-membered carbocyclic or heterocyclic ring in a unique configuration of fused rings per Formula I The compounds show improved phosphorescent emission in red to near IR region and are useful as emitter materials in organic electroluminescence device.

Abstract: Provided are transition metal compounds having 5-membered carbocyclic or heterocyclic ring in a unique configuration of fused rings per Formula I The compounds show improved phosphorescent emission in red to near IR region and are useful as emitter materials in organic electroluminescence device.

Abstract: Provided are macrocyclic compounds comprising at least one eight-membered ring and at least four further 5-membered or 6-membered carbocyclic and heterocyclic rings which may be further substituted. Also provided are formulations comprising these macrocyclic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these macrocyclic compounds.

Abstract: A composition of materials including a first compound having a structure according to Formula I

Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: Provided are compounds comprising a first ligand LA comprising at least two 5-membered or 6-membered carbocyclic rings, wherein at least one of the two 5-membered or 6-membered carbocyclic rings is further substituted with a bicyclic structure containing two nitrogen atoms and one of O, S, CRR?, and SiRR?. Also provided are formulations comprising these compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these compounds.

Abstract: A neutral Ir compound having a first ligand LA of Formula I is disclosed. The Ir compound having azaperylene moieties are useful as emissive dopants in OLED devices for improving the device performance.