12 results about "Organic layer" patented technology

Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. This organic EL device comprises organic layers between an anode and a cathode piled one upon another on a substrate and at least one organic layer selected from a light-emitting layer, a hole-transporting layer, an electron-transporting layer, and a hole-blocking layer contains a carbazole compound represented by the following formula (1). In the case where the light-emitting layer of the organic electroluminescent device contains a phosphorescent dopant and a host material, it is the carbazole compound that is contained as the host material. In formula (1), X is C—Y or a nitrogen atom; Y is a hydrogen atom, an alkyl group, a cycloalkyl group, or an aromatic group; n is an integer of 2 to 4: A is an n-valent aromatic group; L is a direct bond or a divalent aromatic group; and R is a hydrogen atom, an alkyl group, or a cycloalkyl group.

Provided is an organic EL device, including: a transparent substrate having a front surface and a rear surface; a first electrode layer, an organic layer including a light emitting layer and a second electrode layer that are formed in order on the front surface of the transparent substrate; and a reflective layer formed on the second electrode layer on a side opposite to the organic layer and having light reflectivity for light incident from the second electrode layer, the first electrode layer and the second electrode layer being formed of a transparent material, light being extracted from the rear surface of the transparent substrate.

The invention relates to a dry toner, containing a platelet-type metal effect pigment or a plurality of platelet-type metal effect pigments and at least one resinous constituent, wherein the metal effect pigment or the metal effect pigments is/are additionally provided with a coating preferably suitable for improving the mechanical stability, and that this coating is additionally modified with at least one organic layer, which organic layer is selected from the group consisting of organofunctional silanes, organofunctional titanates, organofunctional zirconates, phosphonic acids, and phosphonates. The invention further relates to processes for the production of the dry toner and to the use thereof. Furthermore, the invention relates to a toner cartridge and to printed products.

A compound that emits fluorescence and delayed fluorescence is provided as a material for an organic electroluminescent device of high efficiency, and an organic photoluminescent device and an organic electroluminescent device of high efficiency and high luminance are provided using this compound. The compound of a general formula (1) having a triphenylene ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.

The invention discloses a preparation method of a dye sensitizer based on phenothiazine. The method comprises the following steps: adding a molar equivalent amount of phenothiazine to a one-mouth flask, dissolving phenothiazine in DMSO, adding 2 molar equivalent amounts of a NaOH solid, carrying out room temperature stirring for 30min, adding 1.6 molar equivalent amounts of 1-bromohexadecane in a dropwise manner under the protection of nitrogen by using a dropping funnel, reacting at room temperature for 24h, carrying out reduced pressure distillation to remove the DMSO, extracting the above reactant with dichloromethane three times, and drying the above obtained organic layer with anhydrous MgSO4 for 8h. The dye sensitizer R adopting a phenothiazine derivative as an electron donor and cyanoacrylic acid as an electron acceptor is synthesized through adopting a phenothiazine molecule as a template and phenothiazine and cyanoacrylic acid as connecting groups, and the dye sensitizer R is soluble in organic solvents, such as chloroform, toluene and tetrahydrofuran. Results of nuclear magnetic resonance verification of the structure of an intermediate for synthesizing the dye sensitizer R, ultraviolet-visible absorption spectrum, fluorescence spectrum and electrochemical performance analysis of the intermediate show that the optical band gap of the intermediate is basically consistent with the electrochemical band gap, so the dye sensitizer can be used as a good luminescent material.

The invention provides a copper oxide/carboxymethyl cellulose gel modified composite film, and a making method and a use thereof. The making method comprises the following steps: washing and drying a copper net; cutting the dried copper net, carrying out high temperature calcination on the cut copper net in a tubular furnace, naturally cooling the calcined copper net to room temperature, and taking out the naturally cooled copper net; impregnating the calcined copper net in a carboxymethylcellulose sodium solution for a period of time, taking out the impregnated copper net, and impregnating the copper net in a Fe<3+> solution; and taking out the copper net a period of time later, placing the impregnating copper net in an oven, drying the copper net at a certain temperature for a period of time, continuously repeating the above impregnating operation to make the copper oxide/carboxymethyl cellulose gel modified composite film, and preserving the copper oxide/carboxymethyl cellulose gel modified composite film in water. The CuO-CMC modified composite film is produced through the method for high temperature calcination of the copper net and coating of the surface with an organic layer. The making method has the advantages of simplicity in operation, obvious separation effect and high practical values.

The invention belongs to the natural drug chemical field, and is characterized in that: grinding Xizang rhizoma picrorhizae medicinal materials, adding 75%-95% of ethanol with an amount of 16-20 times for refluxing and extracting for 2-3 times, recycling ethanol from an extracting liquid with lowered pressure, extracting a concentrated liquid with ethyl acetate, taking an organic layer, and recycling ethyl acetate for concentration. The volume is concentrated until sticky dipped using a glass rod, then it is placed at the condition of -10 DEG C to -5 DEG C for 24 hours, crystal is precipitated, and filtered, the crystal solid is refluxed and dissolved by adding 95% of ethanol, then standing for crystal precipitation, and then filtering to obtain the cucurbitacine B. According to the method provided by the invention, the process prepareing the cucurbitacine B is simple in process, low in cost, high in yield and productive rate, and suitable for industrial large-scale preparation.

The invention discloses a method for preparing N,N-diethyl-3-pyridine carboxamide. The method comprises the following steps: adding nicotinic acid and dichloromethane into a reaction bottle and dropwise adding oxalyl chloride at the temperature of 0 DEG C; after oxalyl chloride is added dropwise, stirring and reacting at the temperature of 0 DEG C for 0.5-1 hour and reacting at room temperature for 4-6 hours; after the reaction is ended, dropwise adding a sodium hydroxide solution for regulating the pH value of the reaction solution to 7, slowly dropwise adding diethylamine at the temperature of 5 DEG C below zero to 10 DEG C; after diethylamine is added dropwise, reacting at the room temperature for 6-8 hours; after the reaction is finished, adding a sodium carbonate solution, stirring, standing for layering, removing the lower water layer, drying the organic layer, thereby obtaining a crude product of N,N-diethyl-3-pyridine carboxamide; adding the crude product of N,N-diethyl-3-pyridine carboxamide into dichloromethane, discoloring, oxidizing, removing dichloromethane, performing reduced-pressure distillation, thereby obtaining the finished product of N,N-diethyl-3-pyridine carboxamide. The method is low in equipment requirement, slight in environmental pollution and low in danger coefficient and is a synthesis method which is environment-friendly and very suitable for industrial production.

The invention discloses a method for preparing hexyl-dioctyl phosphorus oxide. The method comprises the following steps: adding dioctyl phosphorus oxide, 1-hexene, an acetic acid solvent and di-tert-butyl peroxide in a PTFE (Polytetrafluoroethylene) reaction kettle, adding a small amount of industrial mixed decene, stirring and dissolving, rising the temperature to be 130 to 140 DEG C, reacting for 12 to 36 hours, detecting and completely reacting under <31>P-NMR (Nuclear Magnetic Resonance), adding 5 to 15 weight percent of diluted hydrochloric acid in a reaction solution for carrying out demulsifying and washing, extracting by using trichloromethane, washing an organic layer to be neutral by using water, evaporating to remove trichloromethane and unreacted olefin through a rotary evaporator, recrystalizing by using ethanol, filtering, and carrying out vacuum drying, thus obtaining white solid. The method for preparing hexyl-dioctyl phosphorus oxide, disclosed by the invention, is simple in steps, is green and environmentally friendly and is good in atom economy, a product is high in purity, separation is easy, and an industrial prospect is obtained; the product is applied to industries of water quality detection and sewage treatment.