Abstract: Provided are new organometallic compounds which are tetradentate and which comprise either a platinum or a palladium atom as the central metal atom. Also provided are formulations which comprise these new organometallic compounds. Further provided are organic light emitting diodes (OLEDs) and related consumer products that utilize these new organometallic compounds.

Abstract: A compound comprising a first ligand LA of Formula I, where at least one of the following two conditions is true: 1) moiety A is a polycyclic fused-ring system, or 2) at least one RA substituent comprises a structure of Formula II, In Formulae I and II, moieties A, B, C, and D are a monocyclic rings or polycyclic fused-ring systems; X is C or N; each K3 and K4 is independently selected from the group consisting of single bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), and Si(R?)(R?); each of Y1 and Y2 is selected from a group of linkers; Z1 to Z5 are each C or N; represents a single or double bond; each R?, R?, R?, R?, RA, RB, RC, RD, and RE is independently hydrogen or a General Substituent; L is a direct bond or an organic linker; and LA is coordinated to a metal M. Formulations, OLEDs, and consumer products containing such compounds are also provided.

Abstract: Provided is a deuterated compound produced by a method that includes: heating a first compound in a solvent containing a deuterated material to an elevated temperature to generate the deuterated compound; and isolating the deuterated compound; where the first compound has at least 0.01 mg/mL solubility in the deuterated material at 25° C. Further provided are OLEDs and consumer products containing the deuterated compound.

Abstract: A compound having a structure of Formula I, is provided. In Formula I, M is Pt or Pd; rings A, B, C, and D are 5-membered or 6-membered rings; one of Z1, Z2, and Z3 is N and the other two are C; each of X1 to X10 is C or N; K is a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); each of L1 and L2 is a direct bond or a linker; each R, R?, R?, R?, R?, RA, RB, RC, RD, and RE is hydrogen or a General Substituent; R1 is a substituent; at least one RE comprises a substituent selected from the group consisting of aryl, heteroaryl, cycloalkyl, and heteroalkyl; any two substituents may be joined or fused to form a ring, except that RE at X3 or X4 cannot be joined with RA to from a ring. Formulations, OLEDs, and consumer products including the compound are also provided.

Abstract: Provided are compounds comprising a ligand LA of Formula I where the ligand LA is coordinated to Ir.

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

Abstract: Provided are organic compounds including a structure wherein two 6-membered aromatic rings are connected with a direct bond and further linked by a linker selected from the group consisting of O, S, Se; NR, BR, BRR?, PR, CR, C?O, C?NR, C?CRR?, C?S, CRR?, SO, SO2, P(O)R, SiRR?, and GeRR? so to form a 5-membered ring including the linker. 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: Designs and arrangements for sublimation cells are provided, which enriches an inert carrier gas with organic vapor such that the partial pressure of the organic vapor is highly stable in time. Stability is achieved by controlling the local rates of evaporation along the solid-gas interface through one or more crucibles, thereby reducing the effects of greater headspace and lowering interfacial area as the source depletes. Local evaporation rates also can be controlled using either temperature distribution or convective flow fields.

Abstract: Provided is a compound of Formula Ir(LA)(LB)(LC), wherein LA is a ligand of LB is a ligand of and LC is a ligand of wherein a structure of is fused to the ligand LB of Formula II through two adjacent C of X1-X4.

Abstract: An OLED comprising an anode, a cathode, and an emissive layer, disposed between the anode and the cathode is provided. The emissive layer comprises a first phosphorescent emitter and a first host, where the first phosphorescent emitter is a metal complex; the first host is partially or fully deuterated; the first host is an electron transporting host; and the first host has a HOMO level (H1HOMO) greater than ?5.65 eV, with the proviso that the first host is at least 25% deuterated if H1HOMO is less than ?5.6 eV. Consumer products incorporating the OLED are also provided.

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: Provided are organometallic compounds comprising a carbazole group as the central moiety to which at least two further groups selected from carbazole and benzo[d]benzo[4,5]imidazo[1,2-a]imidazole are attached. 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: Novel Pt tetradentate complexes having Pt—O bond is disclosed. These complexes are useful as emitters in phosphorescent OLEDs.

Abstract: A novel compound selected from is disclosed.

Abstract: Fluorine substituted metal complexes as efficient phosphorescent emitters is disclosed. The fluorine substitution is at para position of a phenyl group.

Abstract: Provided are novel compounds having a structure of that are useful as emitters in OLEDs.

Abstract: Provided are neutral Pt or Pd organometallic compounds comprising a tetradentate ligand, wherein the organometallic compound comprises at least one Pt—C or Pd—C bond. 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: Arrangements for phosphorescent blue emissive materials, layers, and devices are provided. The arrangements include a host having first a triplet energy level of at least 2.8 eV and an absolute difference of not more than 0.3 eV between the first singlet and triplet energy levels, and an emitter that includes an emissive transition metal complex and a first triplet energy level of at least 2.7 eV.

Abstract: A composition comprising a first compound capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature is disclosed. The first compound has at least one aromatic ring with at least one substituent R of Formula I In the structure of Formula I, R? includes at least one fluorine atom; R? represents mono to a maximum possible number of substitutions, or no substitution; each R2 is a hydrogen or one of a variety of substituents; L is an organic linker or direct bond; any two R1, R2 substituents may be joined or fused together to form a ring; the dashed line of Formula I is a bond to a first aromatic ring of the at least one aromatic ring; and n is an integer from 1 to 10. Organic light emitting devices and consumer products containing the compounds are also disclosed.

Abstract: Provided are compounds of Formula I that are useful as emitters in OLEDs.