452 results about "Dibenzofuran" patented technology

Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device. In the organic electroluminescence device, including an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, the aromatic amine derivative is contained in at least one layer, particularly a hole transport layer, in the organic thin film layer.

The present invention relates to compounds of formula I, wherein Y, X1, X2, X3, R1, R2, A1, A2, Z1, Z2, m and n are as defined in claim 1 as components in liquid crystal media and to electro-optical display elements comprising a liquid-crystalline medium according to the invention.

An aromatic amine derivative having a specific structure. An organic electroluminescence device which is composed of one or more organic thin film layers sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers, especially a hole transporting layer, contains the aromatic amine derivative. The aromatic amine derivative has at least one substituted or unsubstituted dibenzofuran skeleton and at least one substituted or unsubstituted terphenylene skeleton. Because the molecules in the aromatic amine derivative hardly crystallize, organic electroluminescence devices improving their production yield and having prolonged lifetime are provided.

An antimicrobial composition, including a synergistic combination of three or more agents as an active ingredient. Each of the three or more potentiating agents can be selected from the following types of compounds: sequestering agents, carbohydrates and carbohydrate derivatives, terpenes / terpenoids, amines and amine derivatives, plant-derived oils, sulfonates, phenols, fatty acids, dibenzofuran derivatives, organo isothiocyanates, quaternary ammonium compounds, peroxides and peroxide donors, and macrolide polyenes. At least two of the three or more potentiating agents are not of the same type of compound. The antimicrobial composition can have strong antimicrobial efficacy in control of microorganisms having resistance to currently used antimicrobials.

The present invention provides a material for an organic electroluminescence device having a specific structure in which a dibennzofuranyl group or a dibenzothiophenyl group is bonded at an N-position (9-position) of a carbazolyl group and an organic electroluminescence device which is provided with one or more organic thin film layers including a light emitting layer between a cathode and an anode and in which at least one layer of the organic thin film layers described above contains the material for an organic electroluminescence device according to the present invention.

The invention relates to a dibenzofuran and dibenzothiophene derivative with a general formula I (shown in the description), wherein X1, X2, W, Y, R, A, Z and m are defined in claims. The invention relates to a manufacturing method, the application of a component serving a liquid crystal medium, and an electro-optic display element comprising the liquid crystal medium.

Provided is a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. In the formula, A represents any of a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted carbazolyl group, R11 to R19 separately represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 14 carbon atoms, and Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.

Provided is a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. In the formula, A represents any of a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, and a substituted or unsubstituted carbazolyl group, R11 to R19 separately represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms.

A composite material including an organic compound and an inorganic compound and having a high carrier-transport property is provided. A composite material having a high carrier-injection property to an organic compound is provided. A composite material in which light absorption due to charge transfer interaction is unlikely to occur is provided. A light-emitting element having high emission efficiency is provided by including the composite material. A light-emitting element having a low drive voltage is provided. A light-emitting element having a long lifetime is provided. A composite material including a heterocyclic compound having a dibenzothiophene skeleton or a dibenzofuran skeleton and an inorganic compound exhibiting an electron-accepting property with respect to the heterocyclic compound is provided.

Objects are to provide the following: a substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having high emission efficiency using the substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having low driving voltage; and a light-emitting device, an electronic device, and a lighting device having low power consumption. Provided is a triazole derivative in which a dibenzothiophen-4-yl or dibenzofuran-4-yl group represented by General Formula (G2) is bonded to any one of Ar1 to Ar3 of a triazole derivative represented by General Formula (G1). In the formulae, A represents oxygen or sulfur, Ar1 to Ar3 separately represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R1 to R7 separately represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.

An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.

A novel organic compound with which the emission characteristics, emission efficiency, and reliability of a light-emitting element can be improved is provided. The organic compound has an imidazo[1,2-f]phenanthridine skeleton and a dibenzothiophene skeleton or a dibenzofuran skeleton bonded through an arylene group. The light-emitting element including the organic compound in a light-emitting layer shows high efficiency and low power consumption.

This invention relates to dibenzothiophene, dibenzofuran, dibenzopyran, and dibenzothiapyran compounds. This invention also relates to layers and devices including at least one of the above compounds.

The purpose of the present invention is to provide a liquid crystalline compound; a liquid crystal composition containing the compound; and a liquid crystal display element including the composition,the liquid crystalline compound satisfying at least one physical property among high stability against heat and light, high transparency, low minimum temperature of the liquid crystal phase, low viscosity, proper optical anisotropy, negatively large dielectric anisotropy, proper elastic constant, good compatibility with other liquid crystalline compounds at room temperature and low temperature, and the like. Provided is a compound represented by formula (1), or the like. In the formula, R1 and R2 are hydrogen, C1-10 alkyl, C2-9 alkoxyl, or the like; ring A1 is 1,3-cyclopentylene or the like; Y1 and Y2 are hydrogen, fluorine, or the like; Z1 and Z2 are a single bond, C1-6 alkylene, or the like; ring N1 is 1,4-cyclohexylene, 1,4-penylene, or the like; and n is 0, 1, or 2.

An organic compound having a low HOMO level and a high hole-transport property is provided. The organic compound is represented by Formula (G1), where Ar1 represents a substituted or unsubstituted fluorenyl group, Ar2 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and A1 represents any one of a substituted or unsubstituted dibenzofuranyl group and a substituted or unsubstituted dibenzothiophenyl group. The low HOMO level and the high hole-transport property of the organic compound allow the formation of an exciplex with another organic compound, which leads to a highly efficient light-emitting element in the presence of a phosphorescent compound due to the effective overlapping between the emission of the exciplex and the longest absorption band of the phosphorescent compound.

The present invention relates to an organic thin-film light emitting device containing an organic compound represented by formula (1) and a donor compound. the light emitting device ca achieve both of the low-voltage driving operation and high luminance efficiency.YA1-Ar)n<sup2>1< / sup2>  (1)(Y represents either substituted or unsubstituted pyrene, or substituted or unsubstituted anthracene. A1 is selected from the group consisting of a single bond, an arylene group, and a hetero arylene group. Ar is selected from the group consisting of a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group. These groups may be substituted or unsubstituted, and n1 is an integer of 1 to 3.)

A light-emitting element with low drive voltage, a light-emitting element with high current efficiency, and / or a light-emitting element with a long lifetime are / is provided. Specifically, a light-emitting element with low drive voltage, a light-emitting element with high current efficiency, and / or a light-emitting element with a long lifetime are / is provided by the use of an organic compound with a dibenzo[f,h]quinoxaline skeleton in a light-emitting layer. In a light-emitting element which includes a light-emitting layer containing an organic compound between a pair of electrodes, the organic compound has a 2,3-unsubstituted dibenzo[f,h]quinoxaline skeleton, a hole-transport skeleton selected from a substituted or unsubstituted dibenzothiophene skeleton, a substituted or unsubstituted dibenzofuran skeleton, and a substituted or unsubstituted carbazole skeleton, and an arylene skeleton, and the 2,3-unsubstituted dibenzo[f,h]quinoxaline skeleton and the hole-transport skeleton are bonded through the arylene skeleton.

An antimicrobial composition, including a synergistic combination of three or more agents as an active ingredient. Each of the three or more potentiating agents can be selected from the following types of compounds: sequestering agents, carbohydrates and carbohydrate derivatives, terpenes / terpenoids, amines and amine derivatives, plant-derived oils, sulfonates, phenols, fatty acids, dibenzofuran derivatives, organo isothiocyanates, quaternary ammonium compounds, peroxides and peroxide donors, and macrolide polyenes. At least two of the three or more potentiating agents are not of the same type of compound. The antimicrobial composition can have strong antimicrobial efficacy in control of microorganisms having resistance to currently used antimicrobials.

Provided is a novel heterocyclic compound which can be used in a light-emitting layer of a light-emitting element as a host material in which a light-emitting substance is dispersed. A heterocyclic compound represented by a general formula (G1) is provided. Any one of R1 to R10 represents a substituent represented by a general formula (G1-1), another one of R1 to R10 represents a substituent represented by a general formula (G1-2), and the others separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α1 and α2 separately represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyldiyl group, and A1 and A2 separately represent a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzothiophenyl group, or a substituted or unsubstituted dibenzofuranyl group.

An object is to provide a novel carbazole compound that can be used for a transport layer, a host material, or a light-emitting material in a light-emitting element. A carbazole compound where nitrogen of a carbazole group, the carbazole skeleton of which whose 3-position is bonded to the 4-position of a dibenzofuran skeleton or a dibenzothiophene skeleton, is bonded to a benzimidazole skeleton through a phenylene group, is provided. The carbazole compound has a high carrier-transport property, and can be suitably used for a material for a light-emitting element or for an organic semiconductor material.

A novel compound which can be used as a material for a light-emitting element is provided. Specifically, a novel compound is provided which can be suitably used as a material for a light-emitting element where a phosphorescent compound enabling high emission efficiency of the light-emitting element is used as a light-emitting substance. In addition, a novel compound is provided which can be easily synthesized and inexpensively manufactured as well as having the above-described characteristics. A compound is provided in which at least one dibenzothiophenyl group or dibenzofuranyl group is directly bonded to a dibenzo[f,h]quinoxaline skeleton.

A transition metal-containing catalyzer is arranged on a particle filter installed in the exhaust gas line of an internal combustion engine and cannot be separated therefrom without being destroyed. To reduce emissions, at least one molecular sieve which retains polychlorinated dibenzodioxins and polychlorinated dibenzofurans is arranged between the transition metal-containing catalyzer and the exhaust gas outlet. Further, the input side of the molecular sieve and / or the output side of the catalyzer has an oxidation activity for hydrocarbons, polychlorinated dibenzodioxins and polychlorinated dibenzofurans upstream of the molecular sieve.

The invention relates to a compound shown as formula (I). R1 is selected from C1-20 aliphatic straight chain or branched chain alkyl or C6-30 aryl radical; R2 is selected from C4-40 substituted or unsubstituted aromatic amino, carbazolyl, dibenzothienyl, indolyl or dibenzofuryl; L is selected from the single bond, C4-40 substituted aromatic amine, C4-40 substituted carbazole, C4-40 substituted indole, C4-40 substituted dibenzofuran, C4-40 substituted dibenzothiophene, substituted or unsubstituted diphenyl ether, O, N or S; R3-R6 is independently selected from H atom, C1-20 of aliphatic straight chain or branched chain alkyl or C6-30 aromatic groups, or a ring formed by connecting two adjacent groups; and n is selected from an integer of 2-5. The invention also protects the application of the compound in organic light emitting devices, especially as a hole transport / injection material in OLED devices.

Disclosed are dibenzofuran and dibenzothiophene derivatives of the general formula I,in which X1, X2, W, Y, R, A, Z and m have the meaning defined in claim 1, to a process for the preparation thereof, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain the liquid-crystalline media according to the invention.

The invention discloses a derivative compound treating dibenzofuran as a core framework, and its application in OLED. The structure of the derivative compound treating the dibenzofuran as the core framework is represented by general formula 1; and in the general formula 1, the outside of the dibenzofuran is connected with an Ar1 function group and an Ar2 function group through C-C bonds or C-N bonds. The efficiency and the life are increased and simultaneously the driving life is greatly increased after the derivative compound treating the dibenzofuran as the core framework is used in the OLED.

To provide a novel carbazole compound that has an excellent carrier-transport property and can be used for a transport layer or as a host material in a light-emitting element. Further, to provide an organic semiconductor material and a material for a light-emitting element using the carbazole compound. A carbazole compound in which the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is substituted with the 2- or 3-position of a carbazole skeleton directly or via an arylene group can be synthesized. The carbazole compound is found to have a suitable carrier-transport property, a good film quality, and be used suitably as a material of a light-emitting element and an organic semicondcutor material. Note that nitrogen of the carbazole skeleton is substituted with any of a phenyl group, a biphenyl group, and a naphthyl group.

A substance having a hole-transport property and a wide band gap is provided. A fluorene compound represented by a general formula (G1) is provided. In the general formula (G1), α1 and α2 separately represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms; Ar1 represents a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, a substituted or unsubstituted 4-dibenzothiophenyl group, or a substituted or unsubstituted 4-dibenzofuranyl group; n and k separately represent 0 or 1; Q1 represents sulfur or oxygen; and R1 to R15 separately represent hydrogen, an alkyl group having 1 to 12 carbon atoms, or an aryl group having 6 to 14 carbon atoms.

The invention relates to an electroluminescent material. According to the invention, diphenyl triazine is adopted as a ligand, and is subjected to a substitution reaction with aromatic heterlcyclic ring, such that a compound comprising two heterlcyclic rings is obtained. The aromatic heterlcyclic ring is carbazole, benzocarbazole, dibenzothiophene or dibenzofuran. The two heterlcyclic ring compounds are directly connected or connected through aromatic groups. According to the invention, the diphenyl triazine material has high triplet-state energy level and good thermal stability. Also, the carbazole, benzocarbazole, dibenzothiophene or dibenzofuran structure generally has high triplet-state energy level. The two are connected, and a dimeric structure is further prepared through other groups. When the novel structure is adopted as a phosphorescent main material and is used in an electroluminescent material, good photoelectric property is provided. The material can be used as an excellent blue phosphorescent main material.

The invention provides an arylamine compound and an organic light-emitting device thereof and relates to the technical field of organic photoelectric materials. According to the arylamine compound, adibenzothienyl group / dibenzofuranyl group / carbazolyl group is connected onto an arylamine group to serve as a bridging group, and oxazole / thiazole / imidazole and its derivative are connected, so that aseries of compounds are obtained, the compounds have higher glass transition temperatures and good thermal stability, and the prepared organic light-emitting device has the advantage of long servicelife. In addition, the arylamine compound is high in refractive index, can reduce total emission loss and waveguide loss and improve light extraction efficiency, thereby improving the light emitting efficiency. The arylamine compound is good in film-forming property, simple in synthesis and easy to operate, and can be widely applied to the fields of panel display, illumination light sources, organic solar cells, organic photoreceptors, organic thin film transistors and the like.