Patent application number | Description | Published |
20080220265 | Cross-linkable Iridium Complexes and Organic Light-Emitting Devices Using the Same - Organic devices comprising an organic layer, wherein the organic layer is non-electroluminescent and comprises a cross-linked metal complex. The cross-linked metal complex may be formed by cross-linking a cross-linkable iridium complex, which comprises a set of ligands coordinated to a central iridium atom. One or more of the ligands have attached thereon, one or more polymerizable groups that are able to polymerize with other molecules to form intermolecular covalent bonds. In some cases, the organic layer may also comprise a dopant. Also provided are a method of making an organic light-emitting device, an iridium complex, and an organic-light emitting device using certain iridium complexes. | 09-11-2008 |
20080261076 | PHOSPHORESCENT MATERIALS - Phosphorescent materials and devices with high device efficiency, stability, and processibility. | 10-23-2008 |
20080280163 | Organometallic compounds having host and dopant functionalities - Organometallic compounds comprising an emissive core and one or more poly-phenylene branches linked to the emissive core. Host moieties are provided as pendant groups on the branches. In some cases, the poly-phenylene chain is linked in meta configuration to reduce π-conjugation in the chain. Suitable host moieties for use in the organometallic compound include those that contain carbazole or triphenylene structures. The quantity and types of host moieties on the organometallic compound may be varied to tune the molecular weight ratio of the host moieties relative to the emissive core. In some cases, the organometallic compound is sufficiently soluble in organic solvents to permit solution processing. Also provided are organic electronic devices comprising organometallic compounds of the present invention and methods for making an organic electronic device using organometallic compounds of the present invention. | 11-13-2008 |
20080281098 | Organometallic compounds and emission-shifting organic electrophosphorescence - Emissive phosphorescent organometallic compounds are described that produce improved electroluminescence, particularly in the blue region of the visible spectrum. Organic light emitting devices employing such emissive phosphorescent organometallic compounds are also described. Also described is an organic light emitting layer including a host material having a lowest triplet excited state having a decay rate of less than about 1 per second; a guest material dispersed in the host material, the guest material having a lowest triplet excited state having a radiative decay rate of greater than about 1×10 | 11-13-2008 |
20080309222 | Materials and structures for enhancing the performance of organic light emitting devices - A device is provided, having an anode, a cathode, and two adjacent organic layers disposed between the anode and the cathode. One organic layer is a phosphorescent emissive material. The other organic layer may comprise an aromatic hydrocarbon material, comprising an aromatic non-heterocyclic hydrocarbon core optionally substituted, and wherein the substituents are the same or different, and each is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, heteroalkyl, substituted aryl, substituted heteroaryl and heterocyclic groups. The second organic layer may comprise a material having a molecular dipole moment less than about 2.0 debyes, such that the device has an unmodified external quantum efficiency of at least about 3% and a lifetime of at least about 1000 hours at an initial luminance of about 100 to about 1000 cd m | 12-18-2008 |
20090108737 | LIGHT-EMITTING ORGANOMETALLIC COMPLEXES - Phosphorescent materials and devices with improved device manufacturing, fabrication, stability, efficiency, and/or color. | 04-30-2009 |
20090130296 | Fabrication of Organic Electronic Devices by Ink-Jet Printing at Low Temperatures - Methods of forming an organic layer by ink-jet printing in the fabrication of an organic electronic device. The organic layer is formed by ink-jet printing onto a surface, a solution comprising an organic material in a low boiling point solvent. The ink-jet printing occurs at an ambient temperature of less than 20° C. such that the solvent has a vapor pressure of 10 mmHg or less. The ink-jet printing may be performed in a temperature-controlled chamber. After ink-jet printing the solution, the solvent is evaporated such that the organic material remains on the surface, thereby forming the organic layer. | 05-21-2009 |
20090209760 | ORGANOMETALLIC COMPLEXES AS PHOSPHORESCENT EMITTERS IN ORGANIC LEDS - Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, 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 cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L | 08-20-2009 |
20090253910 | Phosphorescent Materials - Phosphorescent organometallic materials are provided, comprising at least one 3-arylacetylacetone ligand. Processes for making such materials, and to organic light emitting devices comprising the materials, are also provided. | 10-08-2009 |
20090306385 | REVERSIBLY REDUCIBLE METAL COMPLEXES AS ELECTRON TRANSPORTING MATERIALS FOR OLEDS - The invention is reversibly reducible metal complexes and materials and an organic light emitting device, having an anode; a cathode; and at least one organic layer disposed between the anode and the cathode, made with the complexes of the invention. The reversibly reducible metal complexes are complexes a redox active metal center and at least one ligand; wherein; following a reduction of the complex, adding 1 extra electron to the complex, the extra electron is localized on the metal center. The complexes may function as an ETL or a host material. | 12-10-2009 |
20100072887 | ORGANOSELENIUM MATERIALS AND THEIR USES IN ORGANIC LIGHT EMITTING DEVICES - The present invention provides organoselenium compounds comprising dibenzoselenophene, benzo[b]selenophene or benzo[c]selenophene and their uses in organic light emitting devices. | 03-25-2010 |
20100090591 | PHOSPHORESCENT MATERIALS - Phosphorescent materials and devices having high efficiency and stability, narrow spectrum, and improved processibility. | 04-15-2010 |
20100141127 | PHOSPHORESCENT EMITTERS - Heteroleptic compounds containing phenylpyridine and phenylbenzimidazole are provided. The compounds may be used in organic light emitting devices, particularly as emissive dopants in the emissive layer of such devices. | 06-10-2010 |
20100148663 | Blue Emitter with High Efficiency Based on Imidazo[1,2-f] Phenanthridine Iridium Complexes - Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency. | 06-17-2010 |
20100176390 | ELECTROLUMINESCENT EFFICIENCY - An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further includes a molecule of Formula I (shown below) wherein an alkyl substituent at position R′ | 07-15-2010 |
20100187984 | MATERIALS WITH AZA-DIBENZOTHIOPHENE OR AZA-DIBENZOFURAN CORE FOR PHOLED - A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer. | 07-29-2010 |
20100237334 | Benzo-Fused Thiophene or Bezon-Fused Furan Compounds Comprising a Triphenylene Group - Triphenylene containing benzo-fused thiophene compounds are provided. Additionally, triphenylene containing benzo-fused furan compounds are provided. The compounds may be useful in organic light emitting devices, particularly as hosts in the emissive layer of such devices, or as materials for enhancement layers in such devices, or both. | 09-23-2010 |
20100244004 | HETEROLEPTIC IRIDIUM COMPLEX - 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. | 09-30-2010 |
20100270916 | IRIDIUM COMPLEX WITH METHYL-D3 SUBSTITUTION - Novel organic compounds comprising ligands with deuterium substitution are provided. In particular, the compound is an iridium complex comprising methyl-d | 10-28-2010 |
20100295032 | METAL COMPLEXES WITH BORON-NITROGEN HETEROCYCLE CONTAINING LIGANDS - Novel organic compounds comprising ligands containing a boron-nitrogen heterocycle are provided. In particular, the compound is a metal complex comprising a ligand containing an azaborine. The compounds may be used in organic light emitting devices to provide devices having improved photophysical and electronic properties. | 11-25-2010 |
20110012095 | NON-BLOCKED PHOSPHORESCENT OLEDS - An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum. | 01-20-2011 |
20110060143 | Stable and Efficient Electroluminescent Materials - An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include a molecule of Formula I wherein an alkyl substituent at position R′ | 03-10-2011 |
20110084599 | SINGLE TRIPHENYLENE CHROMOPHORES IN PHOSPHORESCENT LIGHT EMITTING DIODES - Novel triphenylene compounds are provided. Specific examples include multi-aryl-substituted triphenylenes. A preferred group of compounds are triphenylenes that are substituted with a non-fused aryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups and alkyl groups. A further preferred group of compounds are triphenylenes that are substituted with a non-fused heteroaryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl or heteroaryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups. Some high triplet energy analogs are expected to work with deep blue phosphorescent dopants. The compounds may be useful in phosphorescent organic light emitting devices. Also provided is an organic electroluminescent device comprising an anode, a cathode, and an emissive layer between the anode and the cathode, the emissive layer comprising a phosphorescent material and a compound having a repeat unit, the repeat unit containing a triphenylene moiety. | 04-14-2011 |
20110112296 | ORGANOMETALLIC COMPLEXES AS PHOSPHORESCENT EMITTERS IN ORGANIC LEDS - Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, 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 cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L | 05-12-2011 |
20110163302 | HOLE TRANSPORT MATERIALS HAVING A SULFUR-CONTAINING GROUP - Novel materials are provided, having a single phenyl or a chain of phenyls where there is a nitrogen atom on each end of the single phenyl or chain of phenyls. The nitrogen atom may be further substituted with particular thiophene, benzothiophene, and triphenylene groups. Organic light-emitting devices are also provided, where the novel materials are used as a hole transport material in the device. Combinations of the hole transport material with specific host materials are also provided. | 07-07-2011 |
20110180786 | HOLE TRANSPORT MATERIALS CONTAINING TRIPHENYLENE - Novel materials are provided, having a single phenyl or chain of phenyls where there is a nitrogen atom on each end of the single phenyl or chain of phenyls. The nitrogen atom may be further substituted with particular triphenylene groups. Organic light-emitting devices are also provided, where the novel materials are used as a hole transport material in the device. Combinations of the hole transport material with specific host materials are also provided. | 07-28-2011 |
20110266526 | Triphenylene-Benzofuran/Benzothiophene/Benzoselenophene Compounds With Substituents Joining To Form Fused Rings - Compounds comprising a triphenylene moiety and a benzo- or dibenzo-moiety are provided. In particular, the benzo- or dibenzo-moiety has a fused substituent. These compounds may be used in organic light emitting devices, particularly in combination with yellow, orange and red emitters, to provide devices with improved properties. | 11-03-2011 |
20110285280 | ORGANOMETALLIC COMPLEXES AS PHOSPHORESCENT EMITTERS IN ORGANIC LEDS - Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, 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 cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L | 11-24-2011 |
20120032156 | Triphenylene Hosts in Phosphorescent Light Emitting Diodes - An organic emissive layer is provided. Also provided is a device in which the organic emissive layer is disposed between an anode and a cathode. The organic emissive layer includes a phosphorescent material and triphenylene compound or a compound having a repeat unit having a triphenylene moiety. The triphenylene is optionally substituted. The substituents may be the same or different and each is selected from the group consisting of alkyl, aryl, fused aryl, substituted aryl, alkenyl, alkynyl, and heteroalkyl. Triphenylene compounds are also provided. | 02-09-2012 |
20120107989 | CROSS-LINKABLE IRIDIUM COMPLEXES AND ORGANIC LIGHT-EMITTING DEVICES USING THE SAME - Organic devices comprising an organic layer, wherein the organic layer is non-electroluminescent and comprises a cross-linked metal complex. The cross-linked metal complex may be formed by cross-linking a cross-linkable iridium complex, which comprises a set of ligands coordinated to a central iridium atom. One or more of the ligands have attached thereon, one or more polymerizable groups that are able to polymerize with other molecules to form intermolecular covalent bonds. In some cases, the organic layer may also comprise a dopant. Also provided are a method of making an organic light-emitting device, an iridium complex, and an organic-light emitting device using certain iridium complexes. | 05-03-2012 |
20120119190 | PHOSPHORESCENT MATERIALS - Compounds comprising a ligand having a quinoline or isoquinoline moiety and a phenyl moiety, e.g., (iso)pq ligands. In particular, the ligand is further substituted with electron donating groups. The compounds may be used in organic light emitting devices, particularly devices with emission in the deep red part of the visible spectrum, to provide devices having improved properties. | 05-17-2012 |
20120133276 | MATERIALS AND STRUCTURES FOR ENHANCING THE PERFORMANCE OF ORGANIC LIGHT EMITTING DEVICES - A device is provided, having an anode, a cathode, and two adjacent organic layers disposed between the anode and the cathode. One organic layer is a phosphorescent emissive material. The other organic layer may comprise an aromatic hydrocarbon material, comprising an aromatic non-heterocyclic hydrocarbon core optionally substituted, and wherein the substituents are the same or different, and each is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, heteroalkyl, substituted aryl, substituted heteroaryl and heterocyclic groups. The second organic layer may comprise a material having a molecular dipole moment less than about 2.0 debyes, such that the device has an unmodified external quantum efficiency of at least about 3% and a lifetime of at least about 1000 hours at an initial luminance of about 100 to about 1000 cd/m | 05-31-2012 |
20130001538 | Triphenylene Hosts in Phosphorescent Light Emitting Diodes - An organic emissive layer is provided. Also provided is a device in which the organic emissive layer is disposed between an anode and a cathode. The organic emissive layer includes a phosphorescent material and triphenylene compound or a compound having a repeat unit having a triphenylene moiety. The triphenylene is optionally substituted. The substituents may be the same or different and each is selected from the group consisting of alkyl, aryl, fused aryl, substituted aryl, alkenyl, alkynyl, and heteroalkyl. Triphenylene compounds are also provided. | 01-03-2013 |
20130015430 | Composite Organic/Inorganic Layer for Organic Light-Emitting DevicesAANM Kwong; RaymondAACI PlainsboroAAST NJAACO USAAGP Kwong; Raymond Plainsboro NJ USAANM Xia; ChuanjunAACI LawrencevilleAAST NJAACO USAAGP Xia; Chuanjun Lawrenceville NJ USAANM Harikrishna Mohan; SiddharthAACI PlainsboroAAST NJAACO USAAGP Harikrishna Mohan; Siddharth Plainsboro NJ USAANM Cheon; Kwang-OhkAACI HollandAAST PAAACO USAAGP Cheon; Kwang-Ohk Holland PA USAANM Brooks; JasonAACI PhiladelphiaAAST PAAACO USAAGP Brooks; Jason Philadelphia PA US - Organic electronic devices comprising a covalently bonded organic/inorganic composite layer. The composite layer may be formed by the reaction of a metal alkoxide with a charge transport compound having one or more hydroxyl groups. Examples of metal alkoxides that can be used include vanadium alkoxides, molybdenum alkoxides, titanium alkoxides, or silicon alkoxides. This composite layer can be used for any of the various charge conducting layers in an organic electronic device, including the hole injection layer. | 01-17-2013 |
20130112952 | DEPOSITING PREMIXED MATERIALS - A combination of host materials suitable for co-evaporation or premix evaporation, and devices containing the combination of host materials are provided. The combination of host materials provides improved lifetime and efficiency. A method for fabricating devices containing the host material combination is also provided. | 05-09-2013 |
20130140549 | BICARBAZOLE COMPOUNDS FOR OLEDS - Novel organic compounds comprising a bicarbazole core are provided. In particular, the compounds has a 3,3′-bicarbazole core substituted at the 9-position with a triazine or pyrimidine. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and improved lifetime. | 06-06-2013 |
20130168660 | ORGANOSELENIUM MATERIALS AND THEIR USES IN ORGANIC LIGHT EMITTING DEVICES - The present invention provides organoselenium compounds comprising dibenzoselenophene, benzo[b]selenophene or benzo[c]selenophene and their uses in organic light emitting devices. | 07-04-2013 |
20130248832 | Phosphorescent Materials - Phosphorescent materials and devices with high device efficiency, stability, and processibility. | 09-26-2013 |
20140039192 | METAL COMPLEXES WITH BORON-NITROGEN HETEROCYCLE CONTAINING LIGANDS - Novel organic compounds comprising a boron-nitrogen heterocycle are provided. In particular, the compound contains an azaborine. The compounds may be used in organic light emitting devices to provide devices having improved photophysical and electronic properties. | 02-06-2014 |
20140103327 | HOST MATERIALS FOR ORGANIC LIGHT EMITTING DEVICES - Disclosed is an organic electroluminescent device including an anode, a cathode, and an emissive layer between the anode and the cathode, the emissive layer including a phosphorescent material and a compound having a repeat unit that contains a novel triphenylene moiety. A preferred group of the novel triphenylene moiety are triphenylenes that are substituted with a non-fused aryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups and alkyl groups. A further preferred group of compounds are triphenylenes that are substituted with a non-fused heteroaryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl or heteroaryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups. The compounds may be useful in phosphorescent organic light emitting devices. | 04-17-2014 |
20140231768 | Non-Blocked Phosphorescent OLEDs - An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum. | 08-21-2014 |
20140284585 | ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES - Phosphorescent materials and devices with improved device manufacturing, fabrication, stability, efficiency, and/or color is disclosed. | 09-25-2014 |
20140319504 | ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES - Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency. | 10-30-2014 |