Abstract: A compound containing indolocarbazole having a formula: Formula I is disclosed.

Abstract: Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a cycloalkyl containing group at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties.

Abstract: A compound having the formula Ir(LA)n(LB)3?n is disclosed wherein LA is an aza-DBF ligand and LB is an alkyl-substituted phenylpyridine ligand, wherein the compound has a structure according to Formula I: wherein A1, A2, A3, A4, A5, A6, A7, and A8 comprise carbon or nitrogen; wherein at least one of A1, A2, A3, A4, A5, A6, A7, and A8 is nitrogen; wherein ring B is bonded to ring A through a C—C bond; wherein the iridium is bonded to ring A through a Ir—C bond; wherein X is O, S, or Se; wherein R1 and R2 each independently represent mono-, di-, tri-, tetra-substitution, or no substitution; wherein R? and R? each independently represent mono-, di-substitution, or no substitution; wherein any adjacent substitutions in R?, R?, R1, R2, R3, R4, R5, and R6 are optionally linked together to form a ring; wherein R1, R2, R?, and R?are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl,

Abstract: A compound having a structure according Formula Ir(LA)n(LB)3?n: is described. In the structure of Formula Ir(LA)n(LB)3?n: A1, A2, A3, A4, A5, A6, A7, and A8 are each carbon or nitrogen; at least one of A1, A2, A3, A4, A5, A6, A7, and 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; R1, R2, R3, and R4 each independently represent no substitutions up to the maximum possible substitutions; any adjacent substitutions in R1, R2, R3, and R4 are optionally linked together to form a ring; each R1, R2, R3, R4, and R5 is independently selected from a variety of substituents; and n is an integer from 1 to 2. Formulations and devices, such as an OLEDs, that include the compound of Formula Ir(LA)n(LB)3?n are also described.

Abstract: Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a cycloalkyl containing group at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties.

Abstract: This invention discloses novel compounds containing indolocarbazole and silicon core structures. These compounds can be used as hosts for OLEDs.

Abstract: A compound useful as a host material in an OLED is provided. The compound includes at least one chemical group selected from the group consisting of triphenylene, carbazole, indolocarbazole, dibenzothiphene, dibenzofuran, dibenzoselenophene, aza-triphenylene, azacarbazole, aza-indolocarbazole, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene; wherein the compound is substituted by at least one R selected from the group consisting of alkyl, cycloalkyl, spiroalkyl, partially or fully deuterated variants thereof, partially or fully fluorinated variants thereof, and combination thereof.

Abstract: This invention discloses novel indolocathazole and substituted DBX containing host materials which can be used for PHOLEDs.

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: Novel heteroleptic iridium carbene complexes are provided. The complexes have lower-than expected sublimation temperatures, which is beneficial for the processing of these materials in solid state applications. Selective substitution of the ligands provides for phosphorescent compounds that are suitable for use in a variety of OLED devices. The carbene complexes can also be used as materials in a hole blocking layer and/or an electron transport layer to improve device performance.

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: Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a bulky alkyl at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties.

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: Novel heteroleptic iridium carbene complexes are provided, which contain phenyl imidazole moieties. In particular, ligands containing 2,4,6-trisubstituted N-phenyl imidazole fragments have highly desirable properties that make them suitable materials for use in OLED devices.

Abstract: Novel organic materials containing indolocarbazoles as donor connected with electron acceptors such as quinoxaline or dibenzoquinoxaline for PHOLED devices are disclosed.

Abstract: Novel heteroleptic iridium carbene complexes are provided. The complexes have lower-than expected sublimation temperatures, which is beneficial for the processing of these materials in solid state applications. Selective substitution of the ligands provides for phosphorescent compounds that are suitable for use in a variety of OLED devices. The carbene complexes can also be used as materials in a hole blocking layer and/or an electron transport layer to improve device performance.

Abstract: Methods of making novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing.

Abstract: Compounds comprising the formula L1L2MX wherein L1, L2, and X are distinct bidentate ligands that form an octahedral complex on the metal M, wherein M is a metal with an atomic weight greater than 40. Compounds of this formula are sublimated more facilely than octahedral metal complexes where L1, L2, and X are not distinct bidentate ligands. Organic light emitting devices are also described wherein the emissive layer may comprise a host material containing an emissive molecule of formula L1L2MX, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including iridium complexes of the formula L1L2IrX wherein L1, L2, and X are distinct bidentate ligands.

Abstract: Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl.

Abstract: Novel phosphorescent metal complexes containing 2-phenylisoquinoline ligands with at least two substituents on the isoquinoline ring are provided. The disclosed compounds have low sublimation temperatures that allow for ease of purification and fabrication into a variety of OLED devices.