Abstract: A metal tetradentate complex is disclosed in which an imidazole moiety is used as a linker in the ligand. The complex is useful as an emitter or other functional roles in an OLED device.

Abstract: An OLED is disclosed that includes an enhancement layer having optically active metamaterials, or hyperbolic metamaterials, which transfer radiative energy from the organic emissive material to a non-radiative mode, wherein the enhancement layer is disposed over the organic emissive layer opposite from the first electrode, and is positioned no more than a threshold distance away from the organic emissive layer, wherein the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer, and the threshold distance is where the total non-radiative decay rate constant is equal to the total radiative decay rate constant; and an outcoupling layer disposed over the enhancement layer, wherein the outcoupling layer scatters radiative energy from the enhancement layer to free space.

Abstract: A compound having a formula: Formula I useful as emitters in OLEDs is disclosed.

Abstract: Provided are compounds, formulations comprising compounds, and devices that utilize compounds, where the devices include a substrate, a first electrode, an organic emissive layer comprising an organic emissive material disposed over the first electrode. The device includes an enhancement layer, comprising a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to the organic emissive material and transfers excited state energy from the organic emissive material to the non-radiative mode of surface plasmon polaritons. The enhancement layer is provided no more than a threshold distance away from the organic emissive layer, where the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer. At least one of the organic emissive material and the organic emissive layer has a vertical dipole ratio (VDR) value of equal or greater than 0.33.

Abstract: Metal complexes with ligands bearing a five member aromatic moiety fused with dibenzofuran or its analogues useful as electroluminescence materials in OLEDs are disclosed.

Abstract: A compound comprising a first ligand LA of Formula I is described. In Formula I, X1 and X6 to X10 are each independently C or N; X2 is CR1? or N; X3 is CR1 or N; X4 is CR2 or N; X5 is CR3 or N; each R1, R2, R3, RA, RB, and RC is independently a hydrogen or a General Substituent; any two substituents may be joined or fused to form a ring; at least one of R1?, R1, R2, and R3 is a partially or fully deuterated alkyl or cycloalkyl group; at least one pair of RC are joined or fused to form a 5-membered or 6-membered ring. Formulations, OLEDs, and consumer products comprising the compound are also described.

Abstract: Provided organic light emitting device (OLED) comprising compounds having Formula I: wherein rings A, B, C, D, E, and F are each independently a single or fused ring system, consisting of one or more 5-membered or 6-membered carbocyclic or heterocyclic rings; L1, L2, L3, L4, L5, and L6 are each independently optionally present or is selected from the group consisting of O, S, Se, BR, BRR?, NR, C?R, CRR?, SiRR?, P(O)R, and GeRR?; a, b, c, d, e and f are each 0 for not present or 1 for present; each of R, R?, R1, R2, R3, R4, R5, and R6 is independently a hydrogen or a substituent; and any two of adjacent R, R?, R1, R2, R3, R4, R5, and R6 can be joined or fused to form a ring. The compound is an ETL.

Abstract: Provided are iridium complexes having a ligand LA of Formula I Also provided are formulations comprising these iridium complexes. Further provided are OLEDs and related consumer products that utilize these iridium complexes.

Abstract: Provided is a process for preparation of a compound of Formula 1 where, ring Y and ring Z are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; Z1 and Z2 are each independently C or N; each RY and RZ independently represents mono to the maximum possible number of substitutions, or no substitution; x=1, 2, or 3; y=0, 1, or 2; and x+y=3.

Abstract: Provided are boron substituted organometallic compounds of Formula I: Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided are compounds capable of functioning as an emitter in an organic light emitting device at room temperature, and the compounds are at least 40% deuterated. Also provided are their uses in OLED related electronic devices.

Abstract: Provided is an organometallic compound including a first ligand LA selected from In ligand LA, each of Y1 to Y10 is carbon or nitrogen; moiety B is a monocyclic or polycyclic fused ring structure including 5-membered and/or 6-membered rings; any two RA and RB can be fused or joined to form a ring; X is selected from O, S, Se, or NR; each RA and RB is independently hydrogen or a substituent selected from the general substituent defined herein; at least one R, RA, or RB is deuterium or a linking group between LA and another ligand that includes a deuterium substituted aromatic ring; and LA is coordinated to a metal M, selected from Os, Pd, Pt, Ir, Cu, Ag, or Au; and the compound is capable of emitting light with a peak maximum wavelength (?max)?700 nm at room temperature.

Abstract: A compound including a bidentate ligand LA comprising a structure of Formula I, is disclosed. In Formula I, ring A? is a 7-, 8-, or 9-membered ring structure; X is of NR2, O, CR, CRR?, S, or SiRR?; each of RA?, R1, and R2 is independently hydrogen or a substituent; R1? is independently absent or a hydrogen or a substituent; any two adjacent RA?, R1, R1?, and R2 can be joined or fused to form a ring; the ligand LA is coordinated to a metal, which is selected from Os, Ir, Pd, Pt, Cu, Ag, or Au; and (1) at least one of R1 and R2 is coordinated to the metal M, or (2) at least one RA? comprises a 5- or 6-membered carbocyclic or heterocyclic ring that is not directly fused to Ring A? and is coordinated to the metal M, or both (1) and (2) are true. Formulations, devices, and consumer products including the compound are also disclosed.

Abstract: Metal complexes with cyclic ligands having Formula (I), are disclosed. Ligands with cyclic structure are believed to be beneficial to the rigidity and stability of the metal complexes, which is desirable for improving OLED device performance.

Abstract: A compound of Formula I wherein Z1, Z2, Z3, and Z4 are independently selected from C or N; wherein one of Z1 or Z3 is N and the other is C, and one of Z2 or Z4 is N and the other is C; and if Z3 and Z4 are N, then one of RB and one of RC is selected from the group consisting of aryl, substituted aryl, heteroaryl, and substituted heteroaryl; or if Z1 and Z2 are N and, then one of RA, one of RB or one of RC is selected from the group consisting of an optionally substituted aryl, and an optionally substituted heteroaryl. An organic light emitting diode/device (OLED) that includes an anode, a cathode, and an organic layer disposed between the anode and the cathode. The organic layer includes a compound of Formula I above. The OLED can be incorporated into a consumer product, an electronic component module, and/or a lighting panel.

Abstract: A compound of Formula I: wherein: X1-X8 are each independently C or N, wherein two adjacent X1-X8 are carbon-fused to a structure of Formula II: X9-X12 are each independently C or N; A1, A2, and A3 are each independently selected from the group consisting of O, S, Se, N, NR, CR, CRR?, SiR, SiRR?, GeR, and GeRR?, with at least one of A1 and A2 being N or NR; each occurrence of is independently a single bond or a double bond, wherein one occurrence of is a single bond and one occurrence of is a double bond; each of RA, RB, and Rc independently represents zero, mono, or up to a maximum allowed substitution to its associated ring; each of occurrence R, R?, RA, RB, and RC is independently a hydrogen or a substituent selected from the group consisting of Formula III, Formula IV, Formula V, Formula VI, Formula VII, Formula VIII, Formula IX, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, boryl, alkenyl, cycloalkenyl, heteroalkenyl, a

Abstract: Provided are organometallic compounds comprising a first ligand LA comprising a multicyclic fused ring system wherein ligand LA is coordinated to a metal M; and wherein M is selected from the group consisting of Os, Ir, Pd, Pt, Cu, Ag, and Au. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

Abstract: A compound comprising a ligand LA, having a structure of Formula I, is provided. In Formula I, A1 to A8 are each independently CR or N; at least two adjacent ones of A1 to A8 are CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C; X is O, S, or Se; each R and RB is independently hydrogen or a substituent; any adjacent substituents are optionally joined or fused into a ring; the ligand LA is coordinated to a metal M; the metal M is bonded to ring A through a M-C bond; the metal M can be coordinated to other ligands; and the ligand LA is optionally linked with other ligands. Formulations, OLEDs, and consumer products containing such compounds are also disclosed.

Abstract: According to an aspect of the present disclosure, a compound having a metal planar tetradentate coordination configuration is disclosed. In the compounds, the metal M is Pt or Pd; the four coordinating atoms are Z1, Z2, Z3, and Z4 and are each selected from N, C, and O. The compound includes a substituent R, and atoms M, Z1, Z2, Z3, and Z4 are used to define a first plane that passes through the metal M and is positioned to have a minimum sum of shortest distances with Z1, Z2, Z3, and Z4. At least one non-hydrogen atom in R falls within a distal circle of a cylinder extending perpendicular to the first plane, where the distal circle of the cylinder is a height h from the base circle and the height h ranges from 3.3 ? to 4.8 ?.

Abstract: Embodiments of the disclosed subject matter may provide a display device or display surface including at least one emissive layer and a near-infrared (NIR) emissive layer disposed in a stack arrangement between a first electrode and a second electrode, where NIR light is emitted from the NIR emissive layer through the at least one emissive layer, or visible light is emitted from the at least one emissive layer through the NIR emissive layer, and where the NIR light output by the NIR emissive layer has a peak wavelength of 740 nm-1000 nm. Embodiments of the disclosed subject matter may provide a near infrared (NIR) light source disposed behind or in front of an active-matrix organic light emitting diode (AMOLED), where the NIR light source has an area greater than 25% of an active area of the display device or display surface.