Abstract: Provided is a compound comprising a structure of wherein the variables are defined herein.

Abstract: A compound of formula Ir(LA)m(LB)n is provided, where m and n are 1 or 2, and m + n = 3; where ligand LA has a structure of Formula I, ; ligand LB has a structure of Formula II, and LA and LB are different. In Formulae I and II, moiety E is a ring or polycyclic fused ring system; each of X1 to X10 is C or N; Y is a linking group that forms a 5-membered ring; each R*, R?, R?, RA, RB, RC, RD, and RF is hydrogen or a General Substituent; RE is hydrogen or a General Substituent other than silyl; and RE and at least one of RA or RB comprise aliphatic carbon atoms. Formulations, OLEDs, and consumer products containing the compound are also provide.

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 compound comprising a first ligand LA of Formula I: wherein R1 and R2 are each independently a hydrogen or a substituent selected from the group consisting of deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, heterocycloalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, germyl, boryl, selenyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carboxylic acid, ether, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; wherein LA is coordinated to a metal M through the indicated dashed lines; wherein M may be coordinated to other ligands; wherein LA may be joined with other ligands to comprise a tridentate, tetradentate, pentadentate, or hexadentate ligand; and wherein any two substituents may be joined or fused to form a ring. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.

Abstract: Provided are organometallic compounds comprising an at least two-dentate ligand comprising at least one 5-membered or 6-membered carbocyclic or heterocyclic ring. Further provided are organometallic compounds containing a platinum atom as the central metal atom. Also described are their various uses including as emitters in devices such as organic light emitting diodes and related electronic devices. Also provided are formulations comprising these organometallic compounds containing a platinum atom as the central metal atom. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

Abstract: A compound having the formula Ir(LA)n(LB)3-n, having the structure of Formula I is provided. In the structure of Formula I, each of A1 through A8 is independently carbon or nitrogen; at least one of A1 through A8 is nitrogen; ring B is bonded to ring A through a C—C bond; the iridium is bonded to ring A through an Ir—C bond; X is O, S, or Se; each of R1 through R5 are independently selected from a variety of substituents, which may be linked for form a ring; n is an integer from 1 to 3; and at least one R2 adjacent to ring C is not hydrogen. Formulations and devices, such as OLEDs, that include the first compound are also provided.

Abstract: A phosphorescent metal complexes containing a ligand LA having the formula selected from is disclosed.

Abstract: Tetradentate Pt and Pd compounds with functional groups forming macrocycles are disclosed. The compounds are useful in organic electroluminescent devices to provide improved device efficiency and the stability.

Abstract: A compound including a first ligand LA having the structure of Formula I, is disclosed. In Formula I, rings A and B are each a 6-membered rings; Z1 and Z2 are each carbon or nitrogen; each RA and RB is independently hydrogen or a variety of substituents; any two substituents are optionally joined or fused into a ring; at least one RA or RB comprises an aromatic group substituted by a bridge structure, and this RA or RB joins with an adjacent substituent and fuses to ring A or B; the bridge structure comprises a backbone structure that forms a fused first ring; the backbone structure is saturated, comprises at least one heteroatom, and is optionally further substituted; and the ligand LA is coordinated to a metal M that can be coordinated to other ligands.

Abstract: Provided are boron-containing compounds having a structure of Formula I wherein ring A, Z, X1-X3, RA, RB, R1, and R2 are defined herein.

Abstract: An OLED is disclosed whose emissive layer has a first host and an emitter, where the emitter is a phosphorescent metal complex that is a Pt(II) or Pd(II) complex having a square planar coordinating geometry or has the formula of M(L1)x(L2)y(L3)z, where EH1T, the T1 triplet energy of the first host, is higher than EET, the T1 triplet energy of the emitter, where EET is at least 2.50 eV, where the LUMO energy of the first host is higher than the HOMO energy of the emitter, where the absolute value of the difference between the HOMO energy of the emitter and the LUMO energy of the first host is ?E1, where a??E1?EET?b; and where a?0.05 eV, and b?0.60 eV.

Abstract: Provided is an organic light emitting device including a light emitting stack that includes: a first electrode; a second electrode; a first layer disposed between the first electrode and the second electrode. The first layer can be a hole injecting layer, a hole transporting layer, an electron blocking layer, an emissive layer, a hole blocking layer, an electron transporting layer, or an electron injecting layer. The first layer includes a first compound and a second compound mixed together. The first compound includes a first element (F1) that can be D, F, CN, Si, Ge, P, B, or Se. The second compound includes a first element (S1) that can be D, F, CN, Si, Ge, P, B, or Se. The first element of the first compound can be same or different from the first element (S1) of the second compound.

Abstract: A compound having a metal coordination complex structure, where the compound is capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature is disclosed. The compound has a first ligand coordinated to a metal. The free-state of the first ligand has a first triplet energy T1 of EL at 77K, while the compound has a first triplet energy T1 of E at 77K, and the difference in energy (?E) between E and EL is ?250 meV. The compound has a triplet emission spectrum with a FWHM value of no more than 45 nm. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.

Abstract: Provided are OLEDs whose EML has a figure of merit (FOM) value of equal to or larger than 2.50 that have enhanced efficiency and lifetimes. FOM can be determined according to the methods disclosed herein.

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: Provided are organometallic compounds comprising a first ligand LA which comprises at least two rings which are bridged by a two-atom linker comprising two structures which are independently selected from the group consisting of CR, CRR’, SiRR’, GeRR’, BR, BRR’, N, NR, O, and S. 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: High performance OLED that includes deuterated compounds in the emissive layer are disclosed. The OLED includes an anode; a cathode; and an emissive layer, disposed between the anode and the cathode. In the OLED, the emissive layer includes a first phosphorescent emitter and a first host; the first phosphorescent emitter is a metal complex; the first host is partially or fully deuterated; and at least one additional condition is true.

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: Provided are compounds comprising as a central moiety an at least 8-membered ring to which at least four 5- or 6-membered carbocyclic or heterocyclic rings are fused. Also provided are formulations comprising these compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these compounds.

Abstract: Disclosed is an organic light emitting device having an anode; a hole transporting layer; an emissive region; an electron transporting layer; and a cathode. In such devices, the emissive region includes a first compound, H1; a second compound, H2; and a third compound, D1. The first compound H1 is a first host that includes a hole transporting moiety, HT1, and an electron transporting moiety, ET1; the second compound H2 is a second host that includes an electron transporting moiety, ET2; and the third compound D1 is an emitter.