Abstract: Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.

Abstract: Novel oligocarbazole compounds containing a triphenylene and an oligocarbazole are provided. The compounds are useful in devices including organic light emitting devices (OLEDs).

Abstract: Tetradentate ligands with rigid backbone for use as phosphorescent emitters, and devices, such as organic light emitting diodes are disclosed.

Abstract: Tetradentate ligands with rigid backbone for use as phosphorescent emitters, and devices, such as organic light emitting diodes are disclosed.

Abstract: Ligands with fused spirocyclic substitutions and metal complexes formed with such ligands and having improved performance in OLED applications are disclosed.

Abstract: Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.

Abstract: Novel metal complexes containing silyl substitution are provided. Depending on the location of the substitution, compounds that emit in the yellow or green portions of the spectrum can be produced. These compounds are useful as components of OLED devices.

Abstract: Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.

Abstract: Heteroleptic complexes having at least one diarylamino or carbazole group, as shown in Formula (I), are provided: wherein R1, R2, R3, R4, R5, and R6 each represent mono, di, tri, tetra, or penta substitutions or no substitution; wherein Z is a single bond connecting the two phenyl rings, or is absent, wherein when Z is absent, the positions on the phenyl rings may be substituted by R5 or R6; wherein any two adjacent substituents are optionally joined together to form a ring, which may be further substituted; wherein each of R1, R2, R3, R4, R5, and R6 is independently selected from various substituents; and wherein m is 1 or 2. Devices, such as organic light emitting devices (OLEDs) that comprise phosphorescent light emitting materials are also provided.

Abstract: The present invention relates to novel organic compounds containing oligocarbazoles. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).

Abstract: A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in a solvent in which the solvent compound has the following formula: wherein R1 is C1-6 alkyl; R2 is C1-6 alkyl; and R3 is one or more optional substitutions independently selected from C1-6 alkyl and lower aryl.

Abstract: A composition comprising a first compound and a second compound is described. The composition can be a mixture of a first compound having a structure according to Formula I, and a second compound having a structure according to Formula II, The composition can also be a mixture of a first compound having a structure according to Formula III, and a second compound having a structure according to Formula IV, Devices, such as OLEDs, that include the compositions for Formulas I & II or Formulas III & IV, as well as, methods of making the same are also described.

Abstract: Compounds according to Formula I, devices containing the same and formulations containing the same are described. In Formula I, m1, m2 and m3 are 0, 1, 2 or 3; at least one of m1, m2 and m3 is 1, 2 or 3; n1, n2, and n3 are integers independently selected from 1 to 10; and any of the hydrogens is optionally substituted by deuterium.

Abstract: A novel compound containing terphenylene connected to dibenzothiophene, dibenzofuran or dibenzoselenophene that can be used as hosts in phosphorescent organic light-emitting device is disclosed.

Abstract: Compounds including a ligand with a dibenzo-fused 5-membered ring substituent are provided. In particular, the compounds may be iridium complexes including imidazole coordinated to the dibenzo-substituted ligand. The dibenzo-fused 5-membered ring moiety of the ligand may be twisted or minimally twisted out of plane with respect to the rest of the ligand structure. The compound may be used in organic light emitting devices, particularly as emitting dopants in blue devices. Devices comprising the compounds may demonstrate improved stability while maintaining excellent color.

Abstract: A compound having the structure of Formula I, A-L-B-M-D, is disclosed. In the structure of Formula I: A is selected from L is a linker selected from a single bond, an aryl group, a heteroaryl group, and combinations thereof, and may be further substituted; L-B-M has the structure: M is selected from an aryl group, a heteroaryl group, and combinations thereof, and may be further substituted; D has the structure: X is O, S, Se, or CR?R?; X1-X8, Y1-Y12, Z1, Z3-Z8, and Z11-Z18 are each independently N or CR; each R, R?, and R? are selected from a wide variety of substituents; where adjacent R substituents can form a fused ring; and R? and R? can form a ring. Formulations and devices, such as an OLEDs, that include the compound of Formula I are also described.

Abstract: A novel compound containing terphenylene connected to dibenzothiophene, dibenzofuran or dibenzoselenophene that can be used as hosts in phosphorescent organic light-emitting device is disclosed.

Abstract: The present invention relates to novel organic compounds containing oligocarbazoles. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).

Abstract: The present invention relates to novel organic compounds containing oligocarbazoles. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).

Abstract: Novel oligocarbazole compounds containing a triphenylene and an oligocarbazole are provided. The compounds are useful in devices including organic light emitting devices (OLEDs).