84results about How to "Low sublimation temperature" patented technology

The invention discloses an organic metal iridium complex (or hybrid iridium complex). The structure of the complex is as shown in the specification, a developed indolocarbazole series serves as a unit portion of an organic metal iridium light-emitting ligand structure, the charge transfer capacity of the conjugate iridium complex is increased, the performance of an OLED (organic light-emitting diode) device can be improved, the dissolving performance of the light-emitting iridium complex can be enhanced, sublimation temperature is reduced, and a plurality of original difficultly dissolved, sublimated and purified light-emitting iridium complexes are easily dissolved, sublimated and evaporated on a large scale to prepare the OLED device.

The invention provides an organic semiconductor material, which is characterized in that indolocarbazole heteroaromatic rings are constructed to realize high heat resistance, high charge transmission performance and good processability. An organic light emitting diode applying the organic semiconductor material has the characteristics of high efficiency, low voltage and long work life.

The invention discloses a processing technology of decaffeinated red tea. According to the processing technology, after being moderately withered according to a traditional red tea processing technology, fresh tea leaves are frozen and unfrozen, and intracellular membrane structures of the tea leaves are broken; after the tea leaves are rolled and fermented, caffeine in the tea leaves are removed by utilizing high-temperature steam de-enzyme and vacuum microwave drying manners. According to the processing technology, a pure physical manner is utilized, the complete external shapes of the tea leaves are not damaged, no chemical solvent or carrying agent is added, and the caffeine in the tea leaves is removed. The processing technology has the advantages that the caffeine removing effect is good, the technology is simple and feasible, and the production cost is low.

Belonging to the technical field of molybdenum metallurgy, the invention relates to a method for microwave roasting of molybdenite concentrate to produce high-purity molybdenum oxide. The method includes: firstly conducting crushing and ball milling on molybdenite concentrate, then spreading the crushed molybdenite concentrate to a thickness of 1-4cm, and placing the product in a microwave cavity; turning on a microwave output switch, blowing in compressed air, regulating the microwave output power, and carrying out pre-oxidation on the crushed molybdenite concentrate; heating the pre-oxidized molybdenite concentrate to a sublimation temperature and performing thermal insulation for 30-60min, in the process, letting the molybdenum trioxide steam generated by oxidizing roasting overflow through a microwave reactor top, performing water-cooling and then conducting collection by a bag dust collector, thus obtaining high-purity molybdenum trioxide reaching the nonferrous metal industry grade 2 standard. The method provided by the invention has the advantages of short technological process, low energy consumption, and high product purity, etc.

The invention relates to specific phenanthrenes, the use of the compound in an electronic device, and an electronic device containing at least one of said compounds. The invention further relates to a method for producing the compound and a formulation and composition containing one or more of the compounds.

The invention relates to an organometallic compound and application thereof. The organometallic compound has a structure as shown in a formula I in the specification. The compound provided by the invention has the advantages of low sublimation temperature, good optical and electrical stability, high luminous efficiency, long service life, high color saturation and the like, can be used in organiclight-emitting devices, especially as a red light-emitting phosphorescent material, and has the possibility of being applied to the AMOLED industry.

The invention belongs to the technical field of photoelectric material, and concretely relates to a benzene-substituted phenothiazine unit-based luminescent material, an intermediate thereof and an organic photoelectric device made by the luminescent material. The luminescent material takes phenothiazine as an initial reaction raw material, the intermediate is prepared through an Ullmann reaction, and a target compound is obtained through the Ullmann reaction or a Suzuki reaction. The material has the advantages of single structure and definite molecular weight; has high decomposition temperature and low sublimation temperature, and the luminescent material with high purity cab can be easily obtained through sublimation. The material has good luminescence performance as a luminescent layer of the organic photoelectric device and can be used for an organic micromolecule light emitting diode.

An indenofluorenedione derivative having a specific structure, which is useful as a material for organic electroluminescence devices because the derivative is excellent in heat resistance and can be vapor-deposited on a substrate at moderate temperature. An organic electroluminescence device including an anode, a cathode, and an organic thin layer between the anode and the cathode, which contains the material for organic electroluminescence devices in the organic thin layer, is driven at a low driving voltage and has a long lifetime.

The invention relates to a compound, an organic photoelectric device and electronic equipment. The compound has a structure shown as a formula I in the specification. The compound provided by the invention simultaneously contains adamantane and a group A containing N-hetero, the composition of adamantane is chair-form conformational cyclohexane, and the whole ring system has symmetry and rigiditycharacteristics, which is beneficial to reduce the sublimation temperature and lower the glass-transition temperature; phenanthroline, pyridine, pyrimidine or triazine and the like are excellent electron-deficient planar groups, and the groups enable molecules to tend to be planar and are matched with adamantane, so that stacking and electron coupling of the molecules are facilitated. Therefore, the compound provided by the invention has an appropriate HOMO value and a relatively low LUMO value, can improve the electron injection and transmission capability, has relatively high triplet state energy level ET, high electron mobility, excellent thermal stability and film stability, and is beneficial to improve the device performance.

The invention relates to a metal complex and application thereof, and the metal complex has a general formula of Ir (La) (Lb) (Lc), and comprises a structure shown in a formula (1) as a ligand La. Themetal complex has the advantages of good optical and electrical stability, high luminous efficiency, long service life, high color saturation and the like, can be used in organic light-emitting devices, especially as a red light-emitting phosphorescent material, and has the possibility of being applied to the AMOLED industry.

The invention discloses a low-energy-consumption preparation method for black phosphorus single crystals. The method comprises the following steps that rough black phosphorus powder is used as a phosphorus raw material and subjected to a heating reaction with metal simple substance tin and mineralizer stannic iodide under the vacuum condition, and through programmed cooling, the black phosphorus single crystals with larger size and higher purity are obtained. According to the method, required equipment is simple, the reaction temperature is low, the obtained black phosphorus single crystals are good in crystal form, the energy consumption can be obviously lowered, and the method helps to achieve industrial large-scale preparation of the black phosphorus single crystals.

The invention relates to a preparation device and a production method for a sulfur electrode material. The sulfur electrode material preparation device comprises a mixer, a sulfur storage device, a heating system and a vacuum system, wherein the sulfur storage device is as high as the mixer body; a porous stainless steel tube is a trapezoidal stainless tube which is wide in bottom and narrow in top; holes which are 1-20 microns in hole diameter and 2-10 / square centimeters in hole count are symmetrically distributed in the surface of the stainless steel tube; the electrode material is a porous oxide electrode material dispersed with elemental sulfur; particles of the porous oxide electrode material are 10-500 nm; the porous oxide electrode material is one of hollow vanadium pentoxide nano powder, hollow nickel-cobalt-manganese-lithium oxide nano powder, hollow lithium manganate nano powder and hollow nickel-cobalt-lithium oxide nano powder; elemental sulfur accounts for 20-70% (in mass fraction) of the sulfur electrode material; 1-20% (in mass fraction) conductive polymer coats on the surface layer of the sulfur electrode material; the conductive polymer is one of polypyrrole, polyaniline, polythiophene and polyacrylonitrile. While being applied to a positive electrode of a lithium sulfur battery, the composite material has a high specific capacity and excellent circulating performance, and has a good application prospect in the battery field.

An organic semiconductor material is characterized by indolocarbazole derivative heteroaromatic ring as the molecule structure thereof, so that the organic semiconductor material has the properties of high heat resistance, stability and high charge transmission and processing performance. Organic light-emitting diode made of the organic semiconductor material has the advantages of high efficiency, low voltage and long service lifetime.

By introducing deuterium at a natural abundance ratio or higher into a novel polycyclic aromatic compound in which a plurality of aromatic rings is linked via a boron atom, an oxygen atom, or the like, options of a material for an organic device such as a material for an organic EL element are increased. Furthermore, by using a novel deuterium-substituted polycyclic aromatic compound as a material for an organic EL element, for example, an organic EL element having excellent luminous efficiency and element lifetime is provided.

The invention discloses a light-emitting metal iridium complex and an organic electroluminescence device prepared from the same. The light-emitting metal iridium complex is characterized in that the structure of the complex is as shown in a formula (1) in the specification, in the formula (1), Ar is an aromatic pentabasic ring or hexahydric ring; n is 1 to 2; X is fluorine-containing alkyl of which the carbon atoms are less than 12 and comprises CF3, CF2CF3, CH2CF3, CF2CF2CF3, CH2CF2CF3, CF(CF3)2, CH(CF3)2, CF2CF(CF3)2, CH2CF(CF3)2; p is a substituted integer of 1-4; L is bidentate coupled light-emitting ligand containing N atoms.

The invention belongs to the technical field of organic photoelectric materials, and discloses a 1,2,3-triazole unit-based micro-molecular luminescent material and an application thereof. The molecular weight, the pi electron conjugate degree, the intramolecular charge transfer and other properties of the material can be adjusted through adopting 1,2,3-triazole as a skeleton unit and changing the kind, the position and the quantity of units connected with the skeleton unit. The organic donor-receptor connection luminescent material can realize intramolecular charge transfer, and reduces the carrier imbalance problem of unipolar luminescent materials in order to simplify the structure of a device and improve the performances of the device. Two adjacent units connected with the triazole unit have spatial distortion due to steric hindrance, so the structural non-planarity is reduced, and the accumulation degree of the material is reduced, thereby the aggregation quenching of the material and luminescence of an exciplex are inhibited. The material can be used in evaporation organic micro-molecular electroluminescent diodes.

The invention discloses a method for preparing single crystal nanostructure of an organic compound, which comprises the following steps of: (1) disposing a substrate and a quartz boat loaded with an organic compound powder into a quartz tube, connecting the quartz tube with a vacuum system and vacuuming the quartz tube to a pressure 10<-2> to -5 Pa; and (2) heating the quartz boat to the sublimation temperature of the organic compound and heating the substrate to a temperature lower than the sublimation temperature of the organic compound by 130 to 180 DEG C, keeping the vacuum degree in the quartz tube and growing the crystal nanostructure of the organic compound on the substrate. The invention is simple and easy and can obviate the use of a template and a catalyst. The obtained nanostructure has good crystallization, no defect, high purity and better test reproducibility.

The invention discloses a compound taking dimethyl anthrone as a core and an application of the compound to an organic electroluminescence device. The compound taking the dimethyl anthrone as the core has the advantages that molecules are not easily crystallized or gathered, and the compound has a good film-forming property. When the compound is used as a light-emitting layer material of the organic electroluminescence device, the current efficiency of the device is greatly improved, and the service life of the device is obviously prolonged.

The invention provides an organic small-molecule luminescent material and an organic electroluminescent device. The organic small-molecule luminescent material provided by the invention is obtained bycoupling a novel acridine donor unit 10H-spiro[acridine-9,2'-adamantane] with a receptor unit. The organic small-molecule luminescent material has a single structure and a determined molecular weight, is convenient for purification and high in multiple synthetic reproducibility, and has low sublimation temperature and high decomposition temperature and stable film morphology; since the non-aromatic rigid structure adamantine is used as a donor part structure, the organic small-molecule luminescent material has a high photoluminescent quantum yield in the film state; when the organic small-molecule luminescent material is applied to the organic electroluminescent device, the problem of low efficiency of the device caused by serious non-radiative attenuation due to configuration relaxationof an excited state molecule can be effectively solved.

The invention provides a luminescent material and a preparation method thereof and an organic light emitting diode using the same. The luminescent material provided by the invention has a single structure, determined molecular weight, relatively good solubility and film forming property while the film form is stable; and with very high decomposition temperature and relatively low sublimation temperature, the luminescent material can be easily sublimated into a high-purity luminescent material and can be applied to a small-molecule organic light emitting diode. In the preparation method of the luminescent material provided by the invention, p-bromophenol and 2-fluoro-4-bromobenzonitrile are used as start raw materials, an intermediate of the luminescent material is obtained through a series of simple reactions, and finally, the luminescent material is obtained through Ullman reaction or Suzuki reaction; and the steps are simple, and the yield is high. In the organic light emitting diode provided by the invention, a luminescent layer contains the luminescent material and has relatively high luminescent efficiency and stability.

The invention discloses an organic metal iridium compound and an organic light-emitting device (OLED). A complex is fused into a ring by using a 4-sit substituent and a 5-sit substituent of a quinoline position so as be used as a structural unit part of the organic metal iridium compound, so that not only is the inter-molecular stacking effect reduced, but the improvement of the photoelectric performance of the OLED device is also facilitated, the sublimation temperature is lowered, and the original organic metal iridium compounds which are difficult to sublimate and purify are enabled to become materials which are easy to sublimate and easy in large-scale evaporation preparation of OLED devices. The organic metal iridium compound provided by the invention has good photoelectric propertiesand can be applied to the field of OLED illumination or OLED display.

The invention discloses a compound taking pyridine as a core and application thereof to an organic electroluminescence device. The compound takes pyridine as the core, and has the characteristics thatmolecules are not likely to crystallize and aggregate, and the compound has an excellent film-forming property. When the compound is used as a luminescent layer material of the organic electroluminescence device, the current efficiency, the power efficiency and the external quantum efficiency of the device are greatly improved; and the service life of the device is remarkably prolonged.

A luminescent material, a preparing method thereof and an organic light-emitting diode using the luminescent material are provided. The luminescent material has a single structure, a definite molecular weight, and good solubility and film forming ability and is stable in film shape. The luminescent material has a high decomposition temperature and a low sublimation temperature, can easily sublimate into a high-purity luminescent material, and can be used for the small-molecule organic light-emitting diode. The method adopts bromothiophenol and 4-bromo-2-fluorobenzonitrile as initial raw materials, prepares an intermediate of the luminescent material through a series of simple reactions, prepares the luminescent material finally through a Ullmann reaction or a Suzuki reaction, and is simple in steps and high in yield. A luminescent layer of the organic light-emitting diode contains the luminescent material. The organic light-emitting diode has a high luminescent efficiency and stability.

The invention provides a luminescent material and a preparation method thereof and an organic light-emitting diode using the luminescent material. The luminescent material is single in structure and certain in luminescent material, is good in dissolvability and film-forming ability, and is stable in film shape. The luminescent material is high in decomposition temperature and low in sublimation temperature, can easily sublimate to a luminescent material with high purity, and can be applied to a micromolecule organic light-emitting diode. The preparation method comprises: taking 3-bromophenol and 2-fluoro-4-bromobenzonitrile as initial raw materials, carrying out a series simple reactions to obtain an intermediate of the luminescent material, and carrying out an Ullmann reaction or a Suzuki reaction to obtain the luminescent material. The method is simple in steps and high in yield. A luminescent layer of the organic light-emitting diode contains the luminescent material, and the organic light-emitting diode is high in luminous efficiency and stability.

The invention relates to a compound taking pyridine as a core and application of the compound on an organic electroluminescence device. The compound takes pyridine as the core, and has the characteristics of being difficult to crystallize among molecules, difficult to gather and excellent in film-forming property. When the compound disclosed by the invention is used as a luminous layer material ofthe organic electroluminescence device, the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved. Meanwhile, the compound has a very obvious effecton prolonging of the life of the device.