Abstract: The present invention relates to organic electroluminescent devices which comprise fluorene derivatives and spirobifluorene derivatives as matrix material for phosphorescent emitters.

Abstract: Disclosed is a composition containing a metal complex and an organic compound, wherein the difference between the absolute value of the energy level of the lowest unoccupied molecular orbit of said metal complex and the absolute value of the lowest unoccupied molecular orbit of said organic compound, as calculated with a computational technique, is less than 0.40 eV.

Abstract: Disclosed is a composition comprising a compound having residues of at least two nitrogenated polycyclic compounds selected from the group consisting of nitrogenated polycyclic compounds represented by formulae (1-1), (1-2), (1-3) and (1-4) [wherein R's independently represent a hydrogen atom or a substituent and may be the same as or different from one another] and a phosphorescence-emitting compound.

Abstract: The present invention relates to compounds of the formula (1), to the use thereof in electronic devices, and to electronic devices, particularly organic electroluminescence devices, comprising said compounds according to the invention, particularly as blue emitting material in an emitting layer.

Abstract: A display device comprises an anode, a cathode, and a luminescent region disposed between the anode and the cathode, wherein the anode comprises a metal-organic mixed layer operatively combined with an electron-accepting material. An anode may comprise a mixture of a metal-organic mixed layer and an electron-accepting material within a single layer of the anode. Alternatively, the anode may have a multilayer configuration comprising a metal-organic mixed layer and a buffer layer adjacent the metal-organic mixed layer, wherein the buffer layer comprises an electron-accepting material and optionally a hole transport material.

Abstract: The present invention relates to a class of luminescent and conductive polymer compositions having chromophores, and particularly solid films of these compositions exhibiting increased luminescent lifetimes, quantum yields and amplified emissions. These desirable properties can be provided through polymers having rigid groups designed to prevent polymer reorganization, aggregation or ?-stacking upon solidification. These polymers can also display an unusually high stability with respect to solvent and heat exposures. The invention also relates to a sensor and a method for sensing an analyte through the luminescent and conductive properties of these polymers. Analytes can be sensed by activation of a chromophore at a polymer surface. Analytes include aromatics, phosphate ester groups and in particular explosives and chemical warfare agents in a gaseous state.

Abstract: A composition comprising a compound represented by the following formula (1): wherein Ar represents an aryl group or a mono-valent heterocyclic group.) or a compound having a residue of a compound represented by the above-described formula (1), and a compound represented by the following formula (2): wherein one member of Z1 to Z3 represents —N? and two remainders thereof each represent —C(R?)?; Z4 and Z5 each represent —C(R?)?; one member of Z6 to Z8 represents —N? and two remainders thereof each represent —C(R?)?; Z9 and Z10 each represent —C(R?)?; R? represents a substituent such as a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group and the like. or a compound having a residue of a compound represented by the above-described formula (2).

Abstract: The present invention relates to the use of heterocyclic radicals or diradicals, their dimers, oligomers, polymers, dispiro compounds and polycycles for use as dopant for doping an organic semiconductive matrix material, where the dopants have a structure based on the following formulae.

Abstract: The present invention relates to aromatic amines and to electronic devices in which these amines are used, in particular, as matrix material in the emitting layer and/or as hole-transport material and/or as electron-blocking or exciton-blocking material and/or as electron-transport material.

Abstract: Disclosed is a composition comprising: a compound having a residue of at least one nitrogenated compound selected from the group consisting of nitrogenated compounds represented by formulae (1-1), (1-2), (1-3) and (1-4) [wherein R's independently represent a hydrogen atom or a substituent and may be the same as or different from one another] and a residue of at least one nitrogenated polycyclic compound selected from the group consisting of nitrogenated polycyclic compounds represented by formulae (2-1), (2-2), (2-3) and (2-4) [wherein R's are as defined above]; and a phosphorescent light-emitting compound.

Abstract: Disclosed is a composition comprising: a compound having residues of at least two kinds of nitrogenated compounds selected from the group consisting of nitrogenated compounds represented by formulae (1-1), (1-2), (1-3) and (1-4) [wherein R's independently represent a hydrogen atom or a substituent and may be the same as or different from one another]; and a phosphorescent light-emitting compound.

Abstract: Disclosed is a composition comprising a compound having a pyridazine ring structure and a phosphorescent compound.

Abstract: The invention relates to the use of a multi-nuclear metal or transition metal complex in an organic electronic device, said complex having a small ?E spacing, particularly between 50 cm?1 and 2000 cm?1, between the lowest triplet state and the singlet state that is higher and is achieved by thermal backfilling from the triplet. The invention further relates to the use of the strong absorptions of such multinuclear metal complexes, particularly in OSCs.

Abstract: Provided is a material for an organic electroluminescence device, which is composed of a compound having a specific structure; and is capable of providing an organic electroluminescence device having a high luminous efficiency, excellent heat resistance, and a long lifetime while having no pixel defects, and an organic electroluminescence device using the same. The organic electroluminescence device comprises an organic thin film layer composed of one or more layers including at least a light-emitting layer and sandwiched between a cathode and an anode. In the organic electroluminescence device, at least one layer of the organic thin film layer comprises the material for an organic electroluminescence device.

Abstract: This invention is directed to perylene-diimide aromatic dianion compounds, process of preparation and uses thereof. The perylene-diimide aromatic dianion compounds of this invention are stable in aqueous solution and can be used for photofunctional and electron transfer systems in aqueous phase. This invention is also directed to supramolecular polymers derived from perylene-diimide compounds and to uses thereof.

Abstract: A fluorescent ink composition comprising functionalized fluorescent nanocrystals, an aqueous-based ink carrier comprising water or a water-based solution, and a binder. Also provided are methods of providing an image or a security mark on a substrate for subsequent identification by applying a fluorescent ink composition onto the substrate.

Abstract: The present invention relates to electronic devices, in particular organic electroluminescent devices, comprising metal complexes which contain isonitrile ligands.

Abstract: The present invention provides a novel organic compound having excellent heat resistance. By using the novel organic compound, a light-emitting device and an electronic device having excellent heat resistance can be provided. A quinoxaline derivative represented by the general formula (1) is provided. Since the quinoxaline derivative represented by the general formula (1) has excellent heat resistance, when it is used for a light-emitting element, a light-emitting device using the light-emitting element also have excellent heat resistance. Further, electronic devices having excellent heat resistance can be provided.

Abstract: A novel organic compound and a high-performance organic light-emitting element containing the same.

Abstract: An organic EL element includes a pair of electrodes and an emitting layer interposed therebetween. The emitting layer is made of a mixture containing a host material and a dopant material. In the emitting layer, a concentration profile of the dopant material along a thickness direction includes at least two relative maximums or at least two relative minimums.

Abstract: The invention relates to a composition for coding having at least one pair of mutually associated luminescent substances having first and second luminescent substances which emit in a joint emission range located outside the visible spectral range. The emission spectra of the first and second luminescent substances overlap in at least a subrange of the stated emission range such that the emission spectrum of the first luminescent substance is complemented by the emission spectrum of the second luminescent substance.

Abstract: Electroluminescent devices have an electroluminescent layer incorporating iridium complexes with 2-benzo[b]thiophenyl and benzimidazole ligands such as bis[thiophen-2-yl-pyridine-C2,N?]-2-(2-pyridyl)-benzimidazole iridium.

Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.

Abstract: The invention provides an organic electroluminescent device having at least a light-emitting layer containing a light-emitting material and a host material, a hole injection-promoting layer, and a hole-transporting layer containing a hole-transporting material in this order between a pair of electrodes, in which the hole injection-promoting layer contains a hole-transporting material and has a thickness of 0.1 nm to 0.3 nm, and the relationship Ip1<Ip2<Ip3 is satisfied, when Ip1 is defined as the ionization potential of the hole-transporting material of the hole-transporting layer, Ip2 is defined as the ionization potential of the hole-transporting material of the hole injection-promoting layer, and Ip3 is defined as the ionization potential of the host material. Accordingly, the invention provides an electroluminescent device excellent in both light emitting efficiency and operation durability.

Abstract: The present invention relates to a doped organic semiconductor material comprising an organic matrix material which is doped with at least one heteromonocyclic and/or heteropolycyclic compound, the compound having at least one nitrogen atom with a free electron pair.

Abstract: There is provided a lateral flow diagnostic device that employs a phosphorescent particle. The particle includes, for example, an organic phosphorescent material encapsulated in a cross-linked halogen-containing polymeric matrix. The cross-linked halogen-containing polymeric matrix has at least one percent by mass weight of halogen atoms, and the cross-linked halogen-containing polymeric matrix shields the encapsulated phosphorescent material from phosphorescence quenchers.

Abstract: The present invention provides a dye loaded zeolite material comprising: a) at least one zeolite crystal having straight through uniform channels each having a channel axis parallel to, and a channel width transverse to, a c-axis of crystal unit cells; b) closure molecules having an elongated shape and consisting of a head moiety and a tail moiety, the tail moiety having a longitudinal extension of more than a dimension of the crystal unit cells along the c-axis and the head moiety having a lateral extension that is larger than said channel width and will prevent said head moiety from penetrating into a channel; c) a channel being terminated, in generally plug-like manner, at least at one end thereof located at a surface of the zeolite crystal by a closure molecule hose tail moiety penetrates into said channel and whose head moiety substantially occludes said channel end while projecting over said surface; and d) an essentially linear arrangement of luminescent dye molecules enclosed within a terminated chann

Abstract: A ?-conjugated aromatic ring-containing compound represented by the formula (1) below is relatively stable and useful as a light-emitting material for light from blue-violet region to red region. [In the formula, R1-R6 independently represent a hydrogen atom or the like; A and D independently represent a pyridine ring, pyrimidine ring, pyridazine ring, pyrazine ring, furan ring, pyrrole ring, pyrazole ring, imidazole ring, thiophene ring, benzothiadiazole ring, thieno[3,4-b]pyrazine ring, furo[3,4-b]pyrazine ring, 6H-pyrrolo[3,4-b]pyrazine ring or the like; a1, a2 and a3 independently represent 0 or 1; and n1 and n2 independently represent an integer of 1-5.

Abstract: Certain poly(oxyalkylene) colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.

Abstract: Disclosed herein are compounds represented by a formula: Wherein Ar1, Cb, Ph1, Het1, and A are described herein. Compositions and light-emitting devices related thereto are also disclosed.

Abstract: The present invention relates to fluorescent diketopyrrolopyrrole of the formula I a process for their preparation and their use for the preparation of inks, colorants, pigmented plastics for coatings, non-impact-printing material, color filters, cosmetics, polymeric ink particles, toners, as fluorescent tracers, in color changing media, in solid dye lasers and electroluminescent devices. A luminescent device comprising a composition according to the present invention is high in the efficiency of electrical energy utilization and high in luminance.

Abstract: A substituted fluoranthene, a light emitting layer including the substituted fluoranthene, a diode including the substituted fluoranthene, and a visual display unit including the substituted fluoranthene.

Abstract: This invention relates to a light emitting device which comprises at least one layer that contains an organometallic dendrimer having a core comprising a metal cation. The invention also relates to organometallic dendrimers and methods for producing the same.

Abstract: An amorphous luminous material, which is substantially composed of only rare earth complex compounds, wherein the compounds are two or more kinds of rare earth complexes, and rare earth metal ions, which are center ions of the two or more kinds of rare earth complexes, are different ions.

Abstract: A ceramic body is disposed in a path of light emitted by a light source. The light source may include a semiconductor structure comprising a light emitting region disposed between an n-type region and a p-type region. The ceramic body includes a plurality of first grains configured to absorb light emitted by the light source and emit light of a different wavelength, and a plurality of second grains. For example, the first grains may be grains of luminescent material and the second grains may be grains of a luminescent material host matrix without activating dopant.

Abstract: A material for an organic electroluminescence device, includes: an organic material that is to be provided for a film formation of any of at least one organic layer included in the organic electroluminescence device, the organic material having a water content before the film formation, as measured by the Karl Fischer method, of 100 ppm or more and not more than 1,000 ppm.

Abstract: A polymer for use in an optical device comprising one or more regions, where each region comprises (i) a first structural unit having general formula I: where m=1 or 2 and which contains at least one substituent selected from the group consisting of alkyl, alkoxy, aryl, aryloxy, heteroaryl, and heteroaryloxy groups, each of which may be further substituted; and (ii) a second structural unit Ar selected from the group consisting of heteroaryl, triarylamine and 2,7-fluorenyl; such that where m=1 each region comprises a unit having general formula II: wherein, the substituent has a molecular weight of less than 300.

Abstract: The invention relates to a method of forming a phosphor film and a method of manufacturing an LED package incorporating the same. The method of forming a phosphor film includes mixing phosphor and light-transmitting beads in an aqueous solvent such that the nano-sized light-transmitting beads having a first charge are adsorbed onto surfaces of phosphor particles having a second charge. The method also includes coating a phosphor mixture obtained from the mixing step on an area where the phosphor film is to be formed, and drying the coated phosphor mixture to form the phosphor film. The invention further provides a method of manufacturing an LED package incorporating the method of forming the phosphor film.

Abstract: The present invention relates to a method for forming a calcium-based carrier particle consisting of the calcium-based material, an active, with or without a surface modification, a stabilizing agent, and the related composition. The calcium-based particle is illustrated by the general formula Cax(PO4)y(OH)zR and may also include a silica or silica oxide substituent. R is an active or actives such as an organic or inorganic molecule that includes markers, amines, thiols, epoxies, organosilicones, organosilanes, sulfates, and water soluble agents and, as needed, a surface modification, S, which may be either organic or inorganic. A stabilizing agent may be necessary to maintain dispersion of the particles in aqueous media. Examples of a surface modifying material and stabilizing agents are inorganic salts of aluminum and boron or organic materials such as organosilanes or low molecular weight polymers.

Abstract: Disclosed is an organic light emitting device. The organic light emitting device comprises a first electrode, organic material layer(s) comprising a light emitting layer, and a second electrode. The first electrode, the organic material layer(s), and the second electrode form layered structure and at least one layer of the organic material layer(s) include the compound of Formula 1 or the compound of Formula 1 into which a thermosetting or photo-crosslinkable functional group is introduced.

Abstract: There is provided a photoactive composition including: (a) a first host material having a HOMO energy level shallower than or equal to ?5.6 eV and having a Tg greater than 95° C.; (b) a second host material having a LUMO deeper than ?2.0 eV; and (c) an electroluminescent dopant material. The weight ratio of first host material to second host material is in the range of 99:1 to 1.5:1.

Abstract: The present invention relates to fluorine derivatives and organic electronic devices in which said compounds are used as a matrix material in the emitting layer and/or as a hole transport material, and/or as an electron blocking or exciton blocking material, and/or as an electron transport material.

Abstract: An electroluminescent composition is provided comprising: (a) a compound of the general chemical formula (I): wherein M is lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium, barium, copper, silver, gold, zinc, boron, aluminum, gallium, indium, germanium, tin, antimony, lead, manganese, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, cadmium or chromium; n is the valence of M; and R1, R2 and R3 can be the same or different, and are selected from hydrogen, a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic, heterocyclic or polycyclic ring structure, a fluorocarbon, a halogen or a nitrile group; and (b) a suitable dopant. The composition may be used in forming electroluminescent devices.

Abstract: The present invention discloses a high-molecule-based organic light-emitting diode (OLED) and a fabrication method thereof. The high-molecule-based OLED comprises a layer selected from a group consisting of an organic emissive layer, a first emission-auxiliary layer and a second emission-auxiliary layer. The organic emissive layer, first emission-auxiliary layer or second emission-auxiliary layer comprises a molecular material having a molecular weight of larger than approximately 730 g mol?1, and is formed by a solution-process.

Abstract: The present invention describes novel organometallic compounds which are phosphorescent emitters. Such compounds can be used as active components (=functional materials) in a variety of different applications which can in the widest sense be considered part of the electronics industry. The compounds of the invention are described by the formulae (I), (Ia), (II) and (IIa).

Abstract: An excellent composition for a charge-transport film, which can be used to produce an organic electroluminescence device having excellent heat-resistant property, high hole injection/transport capacity and capable of functioning at a low voltage, is proposed.

Abstract: An organic-inorganic hybrid material comprising a metal oxide and a chelating ligand is synthesized. The function of a coloring property, a light-emitting property, or semiconductivity of the organic-inorganic hybrid material can be controlled by chelating ligand. The organic-inorganic hybrid material is prepared by sol-gel method using sol which includes a metal alkoxide and/or a metal salt and a functional chelating agent.

Abstract: A semiconductor phosphor nanoparticle including nanoparticle core made of a group 13-group 15 semiconductor; a shell layer coating the semiconductor nanoparticle core; and a metal-containing modified organic compound and a modified organic compound binding to a surface of the shell layer is disclosed.

Abstract: A multiple-part marking system that comprises at least one first part comprising at least one oxalate ester, at least one fluorescer, and at least one inorganic salt; and at least one second part comprising at least one peroxide and at least one catalyst, wherein the at least one inorganic salt is chosen from sodium thiosulphate, potassium thiosulphate, cobalt acetate, copper acetate, lead acetate, cupric chloride, ferric chloride, calcium iodide, potassium iodide, and silver nitrate. Light and heat are emitted when the two parts interact.

Abstract: The present invention provides a luminescent device using a luminescent material which has high luminescence efficiency and high stability, and is available at a low cost. The luminescent device is characterized in that as a luminescent material is used a binuclear copper coordination compound having a partial structure represented by the general formula (1): Cu-A-Cu, wherein Cu is a copper ion and A is a bidentate ligand.