Abstract: The present invention includes a new series of benzofused heterocyclic ligands for metal complexes. These complexes show promising photophysical performance when incorporated into OLEDs.

Abstract: A method of making an osmium(II) complex having Formula I, L1-Os-L2, wherein L1 and L2 are independently a biscarbene tridentate ligand, wherein L1 and L2 can be same or different is disclosed. The method includes (a) reacting a precursor of ligand L1 with an osmium precursor to form an intermediate product, wherein the osmium precursor having the formula OsHx(PR3)y, wherein x is an integer from 2 to 6 and y is an integer from 2 to 5, and R is selected from the group consisting of aryl, alkyl and cycloalkyl; and (b) reacting a precursor of ligand L2 with said intermediate product.

Abstract: The present invention relates to organometallic complexes for use as emitters where a molecule of the compound has an orientation factor greater than 0.67, and devices, such as organic light emitting diodes, including the same.

Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 ?.

Abstract: A novel compound having a first ligand LA of is disclosed. The compound is useful as emitter dopant in OLEDs.

Abstract: A compound of Formula I wherein L is a bidentate ligand coordinated to a metal M; each ring K is the same, and represents a 5-membered or 6-membered heteroaryl ring and with ring J forms a 5-member cyclometallated ring; A1 and A1? are the same and selected from CR1 or N; A2 and A2? are the same and selected from CR2 or N; A3 and A3? are the same and selected from CR3 or N; each R4 with its corresponding ring position R4? are the same, and R1 to R5 are as defined in the specification. An OLED with an organic layer that includes a compound of Formula I and a consumer product that includes the OLED. A method of making a compound of Formula I is also described.

Abstract: Cyclometallated iridium complexes having triphenylene or aza triphenylene and bulky alkyl substitution that can be used as emitters in OLEDs to improve the external quantum efficiency (EQE) and lifetime of OLEDs are disclosed.

Abstract: A compound comprising a ligand LA of Formula I coordinated to a metal M as represented by the dotted lines wherein ring A is a 5-membered or 6-membered carbocyclic or heterocyclic ring, and ring B is a multicyclic ring system comprising four to eight fused 5-membered or 6-membered, carbocyclic or heterocyclic rings; wherein the ring B includes a structure of Formula II wherein ring C is a 5-membered or 6-membered carbocyclic or heterocyclic ring, and the dotted lines of Formula II represent fusion of the structure of Formula II as part of the multicyclic ring system of ring B; T1, T2, and T3 are independently selected from N or C; and L is a linker L2-L1 with L2 and L1 independently selected from the group consisting of O, S, NRN, CR1R2, CR3R4, SiR1R2, and SiR3R4; wherein at least one of L1 or L2 is CR1CR2 or SiR1R2; and the metal M is selected from the group consisting of Ir, Rh, Re, Ru, Os, Pt, Pd, Au, and Cu.

Abstract: The present disclosure is directed to cyclometalated metal compounds containing novel ligands having unique fused rings. The inventive compounds are expected to exhibit unique photophysical and electronic properties and are useful in an organic electroluminescence device to improve the performance.

Abstract: A compound comprising a first ligand selected from Formula I, and Formula II, is disclosed. In these structures, Y1 to Y12 and Z3 and Z4 are independently CR or N; where each R, R?, R?, RF, and RG is hydrogen or a substituent, where at least one dashed arc represents Rs joined into a 5-membered or 6-membered carbocyclic or heterocyclic ring; where the first ligand is complexed to a metal M; where ring G is a fused ring structure comprising five or more fused heterocyclic or carbocyclic rings, of which at least one ring is of Formula III where the fused heterocyclic or carbocyclic rings of Ring G are 5- or 6-membered; where Y is selected from BR?, NR?, PR?, O, S, Se, C?O, S?O, SO2, CR?R?, SiR?R?, and GeR?R?. Organic light emitting devices and consumer products containing the compounds are also disclosed.

Abstract: Iridium complexes containing hexadentate ligands are disclosed. Multidentate iridium complexes of Formula II showed desired properties in term of EQE, LT, CIE, etc.

Abstract: Organic light emitting materials and devices comprising phosphorescent metal complexes comprising ligands comprising aryl or heteroaryl groups substituted at both ortho positions are described. An organic light emitting device, comprising: an anode, a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer; and electron transport layer; and a cathode disposed, in that order, over a substrate.

Abstract: Novel Iridium complexes having three different bidentate ligands useful for phosphorescent emitters in OLEDs are disclosed. At least one of the three different bidentate ligands is a carbene ligand.

Abstract: A compound comprising a ligand LA coordinated to a metal M wherein ring A, ring T, and ring W are independently selected from a 5-membered or 6-membered heterocyclic or carbocyclic ring, and the ring W is fused to the ring T. The metal compounds having a ligand LA can be found in an OLED that includes an organic layer positioned between an anode and a cathode where the organic layer comprises a metal compound above having a ligand LA disclosed herein. We also describe a consumer product comprising the OLED.

Abstract: A compound of Formula (LA)n-M-(LC)m, wherein the ligand LA is of Formula I, and the ligand LC is selected from Formula I that is different than ligand LA, a monoanionic bidentate ligand, or a monoanionic monodentate ligand. M is a metal; and n is 1 or 2, and m is 0, 1 or 2. Ring A is a 5-membered or 6-membered heteroaryl ring, which is bonded to Ring B; Z is selected from O or S; Z1 is selected from a carbene C or N; and Z2 is selected from C or N. Moreover, two adjacent ring carbons of Ring B will form a group of formula D, wherein * represents the point of attachment to the two adjacent ring carbons, Formula D, wherein X is selected from NRN, O, S, or Se; and RN is selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, heteroalkyl, aryl, heteroaryl, and combinations thereof; and Y1, Y2, Y3, and Y4 are independently CRY1, CRY2, CRY3, and CRY4, respectively, or N, and Ring D has no more than two nitrogen ring atoms.

Abstract: A compound including a first ligand LA of Formula I is disclosed. The compound is useful as an emitter in phosphorescent OLEDs.

Abstract: A compound capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature that includes at least one aromatic ring and at least one substituent R where each of the at least one R is of Formula I

Abstract: A compound including a ligand LA of Formula I is disclosed.

Abstract: A compound having the formula Ir(LA)(LB), where LA has a structure of Formula I and LB is a bidentate ligand is disclosed. In the structure of Formula I, rings A, B, C, and D are each independently 5- or 6-membered carbocyclic or heterocyclic rings; each of Z1 to Z8 is C or N; LA has at least one Ir—C bond; L is CR or N; each R1 R2, R3, and R4 is independently hydrogen or one of the preferred general substituents; and any two substituents may be joined or fused together to form a ring. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.

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