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4294 results about "Halogen" patented technology

The halogens (/ˈhælədʒən, ˈheɪ-, -loʊ-, -ˌdʒɛn/) are a group in the periodic table consisting of five chemically related elements: Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine (At). The artificially created element 117 (Tennessine, Ts) may also be a halogen. In the modern IUPAC nomenclature, this group is known as group 17.

Onium salt, chemically amplified resist composition, and pattern forming process

InactiveJP2025023601AOrganic chemistryOther chemical processesHalogenExposure latitude
To provide an onium salt which is used for a chemically amplified resist composition having excellent solvent solubility, high sensitivity, high contrast, and excellent lithographic performances such as exposure latitude and linewidth roughness, in photolithography using high-energy radiation, a chemically amplified resist composition comprising the onium salt as a photoacid generator, and a pattern forming process using the chemically amplified resist composition.SOLUTION: An onium salt having the following formula (1) is provided. [R1-R12 independently represent H, halogen, or a C1-C20 hydrocarbyl group optionally including a heteroatom; one of R13 and R14 represents a substituent having a terminal sulfonic acid anion; the other represents H, halogen, or a C1-C20 hydrocarbyl group optionally including a heteroatom; and Z+ represents an onium cation.]SELECTED DRAWING: None
Owner:SHIN ETSU CHEMICAL CO LTD

Deposition of metals in recessed features with the use of halogen-containing deposition inhibitors

Metal films, such as molybdenum films are deposited on a semiconductor substrate having one or more recessed features in a deposition process modulated by addition of a halogen-containing compound (e.g., an alkyl halide). In some implementations, a pre-treatment of a substrate with a halogen-containing compound is performed prior to contacting the substrate with a metal-containing precursor and a reducing agent. In some embodiments, the pre-treatment is performed such that the halogen-containing compound modifies the surface of the substrate to a greater degree in a field region of the substrate and near the opening of the recessed feature, as compared to the bottom portion of the recessed feature, where the modification of the substrate inhibits deposition of the metal. As a result, deposition of metals with improved step coverage can be achieved. In some implementations, modulation of deposition by halogen-containing compounds is used to achieve bottom-up metal growth in recessed features.
Owner:LAM RES CORP

Dual reactor system for simultaneous decontamination and cracking of plastic derived oil to circular chemicals

A process for upgrading plastic derived oil includes contacting the plastic derived oil with a mixed catalyst in a first reactor, where the mixed catalyst includes a decontamination catalyst and a cracking catalyst different from the decontamination catalyst. The first reactor reduces concentrations of halogen-containing compounds in the plastic derived oil. The process includes passing the first reactor effluent to a second reactor and contacting the first reactor effluent with the cracking catalyst to produce a second effluent comprising light olefins and naphtha range hydrocarbons. The process includes separating used mixed catalyst from the first reactor to produce a used decontamination catalyst and a second used cracking catalyst, and regenerating the decontamination catalyst and cracking catalyst in separate regenerators to reduce exposure of the cracking catalyst to halogen-containing compounds produced during regeneration of the used decontamination catalyst.
Owner:SAUDI ARABIAN OIL CO +1

Halogen-free intrinsic flame-retardant waterborne polyurethane material and preparation method thereof

PendingCN119264366AImprove cohesive energyImprove rigidityPolymer sciencePtru catalyst
The invention relates to a halogen-free intrinsic flame-retardant waterborne polyurethane material and a preparation method thereof, and belongs to the field of functional polymer materials and fine chemical engineering. The halogen-based flame-retardant waterborne polyurethane disclosed by the invention is prepared from diisocyanate, long-carbon-chain polyether polyol, a catalyst, a chain extender, deionized water and a salt-forming agent through reaction; the hydrophilic chain extender is prepared from pentaerythritol, phosphorus oxychloride and p-hydroxyphenylpropionitrile through a reaction, and is a flame-retardant chain extender of a diamine structure containing phosphorus and nitrogen flame-retardant elements. The waterborne polyurethane material prepared by the method has a certain flame-retardant effect, and is simple in preparation process, relatively low in cost, very good in practicability and economical efficiency and good in market prospect.
Owner:ZHONGYUAN ENGINEERING COLLEGE

Dual reactor system for decontamination and conversion of plastic derived oil to hydrocarbon intermediates

A process for upgrading a plastic derived oil includes providing the plastic derived oil comprising hydrocarbons and greater than or equal to 100 ppmw halogen-containing compounds and contacting the plastic derived oil with an MMO catalyst in a first reactor at reaction conditions to remove halogens from the plastic derived oil to produce a first reactor effluent with less than 100 ppmw halogen-containing compounds. The process includes contacting the first reactor effluent with an adsorbent to produce a treated first reactor effluent, passing the treated first reactor effluent to a second reactor, and contacting the treated first reactor effluent with a cracking catalyst in the second reactor. Contacting with the cracking catalyst may cause hydrocarbons in the treated first reactor effluent to undergo catalytic cracking to produce a second reactor effluent comprising light olefins, naphtha range hydrocarbons, or combinations thereof.
Owner:SAUDI ARABIAN OIL CO

Nanomaterial with noble metal atoms on non-noble metal substrate, and methods of preparation and use thereof

Nanomaterials and methods of preparation and use thereof, are disclosed. The nanomaterials include a non-noble metal substrate and noble metal atoms on a surface of the non-noble metal substrate. The noble metal atoms simultaneously coordinate with a halogen and oxygen. The substrate has a large specific surface area and a large electrochemical active area, and the surface coordination environment of the noble metal affects the electronic structure and catalytic activity of a resulting catalyst. The noble metal surface coordination structure may be regulated and controlled by a synthesis temperature, an alkalinity, a reaction time, and an electrodeposition voltage range. A hydroxide ion and the halogen coordinate with the noble metal, exhibiting an unsaturated pentacoordinate state. Doping the substrate with reducing metal ions may increase the loading capacity, anchor the noble metal atoms, and improve anodic oxygen evolution and cathodic hydrogen evolution in seawater electrolysis.
Owner:SHENZHEN HINGEAR ENERGY CO LTD

Quantum-dot-containing composition, light-emitting element, display device, and method for manufacturing quantum-dot-containing composition

A quantum-dot-containing composition contains: either quantum dots each having a surface provided with only one equivalent crystal plane, or quantum dots each having a surface provided with two or more different equivalent crystal planes; and one selected from (A), (B), and (C) below: (A) two or more compounds; (B) one or more compounds, and single atoms formed of one or more halogens or chalcogens; and (C) single atoms formed of two or more halogens or chalcogens.
Owner:SHARP DISPLAY TECHNOLOGY CORP

Methods for purifying tin compounds

A method for producing a tin compound represented by formula (A1) with a purity of 95 mol % or higher, involves a step of distilling the tin compound, in which the number of plates of the distillation is 10 or more, and the reflux ratio is 30 or less.RSnX3  (A1)In formula (A1), R is an organic group with 1 to 30 carbon atoms, and may be substituted with halogen, oxygen atoms, or nitrogen atoms. X is selected from OR′ and NR′2. R′ is an organic group with 1 to 10 carbon atoms, and part may be substituted with halogen, oxygen atoms, or nitrogen atoms. When there are multiple R′ groups in the molecule, they may have the same or different structures, and they may be bonded to each other to form a cyclic structure.
Owner:MITSUBISHI CHEM CORP +1

Halogen-free flame-retardant TPU material suitable for charging pile cable and preparation method of halogen-free flame-retardant TPU material

The invention discloses a halogen-free flame-retardant TPU (thermoplastic polyurethane) material suitable for a charging pile cable and a preparation method of the halogen-free flame-retardant TPU material, belongs to the technical field of TPU material processing, and aims to solve the technical problem that the flame retardance and wear resistance of a TPU material for a cable in the prior art need to be further improved. The material comprises the following raw material components in parts by weight: 80-100 parts of a cross-linked thermoplastic elastomer, 10-20 parts of a modified filler, 10-20 parts of a flame-retardant chain extender, 3-5 parts of a stabilizer, 3-5 parts of an antioxidant, 3-5 parts of an ultraviolet light absorber and 3-5 parts of a lubricant, after the modified thermoplastic elastomer is prepared, the modified thermoplastic elastomer is activated and cross-linked with the flame-retardant cross-linking agent, a silane structure is introduced into the structure, the flame-retardant cross-linking agent and the modified filler enhance the flame-retardant capability of the material through a synergistic effect, and meanwhile, the compatibility of the material and an inorganic material is enhanced by hybridizing a polyurethane chain segment; the wear resistance, flame retardance and other properties of the material are improved.
Owner:WUXI YOUYI NEW MATERIAL TECH CO LTD

Solid electrolyte composition and method of producing solid electrolyte member

The present disclosure provides a solid electrolyte composition that can suppress deterioration in ion conductivity of an ionic solid electrolyte material. The solid electrolyte composition according to the present disclosure contains a sulfur element-free ionic solid electrolyte material and an organic solvent, where the organic solvent includes at least one selected from the group consisting of a hydrocarbon and a compound having a functional group; and the functional group is at least one selected from the group consisting of an ether group, a halogen group, and a Si—O—C group.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Solid electrolyte composition and method of producing solid electrolyte member

The present disclosure provides a solid electrolyte composition that can suppress deterioration in ion conductivity of an ionic solid electrolyte material. The solid electrolyte composition according to the present disclosure contains a sulfur element-free ionic solid electrolyte material and an organic solvent, where the organic solvent includes at least one selected from the group consisting of a hydrocarbon and a compound having a functional group; and the functional group is at least one selected from the group consisting of an ether group, a halogen group, and a Si—O—C group.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Halogen-free low-smoke fireproof cable

In order to solve the problems of heat conduction, excessive ceramization, influence on the performance of a part which is not subjected to a fire disaster and increase of maintenance cost, an armored protection layer and a separation assembly are arranged at an interval, and the separation assembly is of a continuous broken-line-shaped tubular structure, so that the bending difficulty of the cable can be reduced, and the cable is suitable for being laid in a narrow and small space; the partition assembly comprises a folding cavity, an outer layer shell and an inner layer shell, a V-shaped groove is formed in the downward bending position of the outer layer shell, ceramization powder accounting for two thirds of the volume of the outer layer shell is contained in the V-shaped groove, the powder can enter the folding cavity after a plugging piece in a side circulation hole is heated and melted, and according to the design, ceramization reaction spreading is controlled through a sectional structure, thermal stress concentration is relieved, and the service life of the ceramic is prolonged. The heat insulation effect is enhanced, continuous work of the cable in a fire disaster is guaranteed, the problem of flexibility reduction caused by unnecessary ceramization is avoided, and construction flexibility and fire-resistant reliability are both considered.
Owner:NORTHEAST PLASTIC CABLE CO LTD

Halogen-free flame-retardant reinforced PBT (polybutylene terephthalate) composition as well as preparation method and application thereof

The invention discloses a halogen-free flame-retardant reinforced PBT (polybutylene terephthalate) composition as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The halogen-free flame-retardant reinforced PBT composition comprises polybutylene terephthalate, a halogen-free flame retardant, a melamine flame-retardant synergist, glass fibers, a phenol amide metal deactivator, a free radical trapping agent and a hydroperoxide trapping agent. According to the halogen-free flame-retardant reinforced PBT composition disclosed by the invention, under the combined action of all the components, the effects of improving the flame retardance, the ignition temperature of a glowing filament and the heat-resistant stability can be achieved, and the halogen-free flame-retardant reinforced PBT composition has relatively high mechanical properties. The flame retardant property of the halogen-free flame-retardant reinforced PBT composition reaches V-0 or above, the tensile strength is 95 Mpa or above, the glowing filament ignition temperature is 800 DEG C or above, and the thermal weight loss T1% temperature is 335 DEG C or above.
Owner:KINGFA SCI & TECH CO LTD

Low-smoke halogen-free fireproof cable

The invention relates to the technical field of cables, in particular to a low-smoke halogen-free fireproof cable which comprises an outer sheath. The outer sheath is prepared from the following raw materials in parts by weight: 40 to 60 parts of low-density polyethylene, 20 to 30 parts of EVA resin, 10 to 20 parts of SEBS elastomer, 5 to 10 parts of POE-g-GMA, 5 to 10 parts of flame retardant, 15 to 30 parts of filler and 1 to 5 parts of additive; the flame retardant is composed of an organic component and a spinel type metal oxide; the organic components comprise a DOPO derivative and a nitrogen flame retardant, the prepared outer sheath granules have excellent mechanical properties and excellent fireproof and flame retardant properties, not only are high in flame retardant rating, but also are small in heat and smoke yield after combustion, and are excellent materials for preparing low-smoke halogen-free fireproof cables.
Owner:HUNAN GOLDEN CABLE ELECTRICAL TECH CO LTD

Anthraquinone compound, liquid crystal composition containing said compound, and dimming element

An anthraquinone compound represented by formula (1): (where R1 and R4 represent —H, a C1-C12 alkyl group, a C1-C12 alkyl group, a halogen atom, —CO2R9, —OCOR9, —COR9, a cyano group, or —CF3, R2, R3, R5 and R6 represent —H, a C1-C4 alkyl group, a C1-C4 alkoxy group, a halogen atom, —CO2R9, —OCOR9, —COR9, a cyano group, or —CF3. R7 and R8 represent —H, a C1-C12 alkyl group, or a C1-C12 alkoxy group. R9 represents a C1-C12 alkyl group, or a substituent represented by formula (a) (where R10 represents —H, a C1-C8 alkyl group, or a C1-C8 alkoxy group) or formula (b) (where R11 represents —H or a C1-C8 alkyl group); however, at least one of R1 through R6 represents a halogen atom, —CO2R9, —COR9, a cyano group, or —CF3).
Owner:NIPPON KAYAKU CO LTD

A coating method for high-nickel layered oxide positive electrode material and sulfide all-solid-state battery

The present invention relates to a coating method for a high-nickel layered oxide positive electrode material, comprising the following steps: dissolving the high-nickel layered oxide positive electrode material, a high-valent metal halide, and an alkaline lithium source in a solvent, mixing them evenly, centrifuging, and filtering, and then calcining the obtained mixed powder to obtain a high-nickel layered oxide positive electrode material with a coated structure. The present invention utilizes an acid-base neutralization reaction to coat the high-nickel layered oxide positive electrode material, and the coated components include three elements: a high-valent metal, a halogen element (F or Cl) with a high electronegativity, and a Li element. The purpose of coating the former two is to improve the structural stability of the high-nickel layered oxide, and the latter provides a lithium source for the positive electrode material, while avoiding contact between the high-nickel layered oxide and the sulfide electrolyte, inhibiting the occurrence of side reactions, and being beneficial to the long-cycle stability of the sulfide all-solid-state lithium battery.
Owner:SHANGHAI FIRM LITHIUM NEW ENERGY TECH CO LTD +1

Preparation method and application of heat-resistant halogen-free flame-retardant modified polycarbonate film

The invention discloses a preparation method and application of a heat-resistant halogen-free flame-retardant modified polycarbonate film, and belongs to the technical field of polycarbonate films. Comprising the following raw materials in parts by weight: 80-97 parts of a polycarbonate raw material, 0.05-2 parts of a dispersing agent, 0.3-0.6 part of a sulfonate flame retardant, 0.5-2 parts of an organic silicon flame retardant, 0.2-0.5 part of an anti-dripping agent, 0.05-0.2 part of a dispersing agent, 0.1-1 part of a release agent, 0.05-1 part of an antioxidant and 1-4 parts of black masterbatch. Wherein the dispersing agent and the release agent can improve the processing stability and film forming; the antioxidant can play a synergistic role, so that the oxidation resistance of the film is improved; the black master batch ensures that the film product is lightproof; the organic silicon flame retardant can improve the heat resistance and mechanical property of the film, can play a synergistic role with the sulfonate flame retardant and the anti-dripping agent, enhances the flame retardant property of the film, is stable in performance and not prone to falling off, and has application value in the new energy battery and energy storage industry.
Owner:ZHUZHOU DIBO PHOTOELECTRIC MATERIALS CO LTD

Positive electrode material and preparation method thereof, positive electrode plate and lithium battery

The invention discloses a positive electrode material and a preparation method thereof, a positive electrode plate and a lithium battery, the positive electrode material comprises a core body and a carbon coating layer, the surface of the core body is at least partially coated with the carbon coating layer, the material of the core body comprises a lithium phosphate positive electrode material, the carbon coating layer contains one or more groups of alkyl, halogen atoms and nitryl. The surface of the lithium phosphate positive electrode material is coated with a layer of carbon material as a protective shell, and the carbon coating layer has hydrophobicity and contains one or more groups of alkyl, halogen atoms and nitryl, so that the prepared positive electrode material has hydrophobicity, the contact between the lithium phosphate positive electrode material and external water is reduced, and the service life of the lithium phosphate positive electrode material is prolonged. The problem of strong water absorption is solved.
Owner:EVE POWER CO LTD

Halogen-free flame-retardant TPU composite material and preparation method thereof

The invention relates to a halogen-free flame-retardant TPU composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The halogen-free flame-retardant TPU composite material is prepared from the following components in parts by weight: 3 to 10 parts of a modified flame retardant, 2 to 10 parts of phenoxy cyclophosphazene, 80 to 100 parts of TPU particles, 90 parts of N, N-dimethylformamide, 0.8 to 1.2 parts of an ultraviolet light absorber and 2.5 to 3.5 parts of a lubricating agent, in the modified flame retardant, ammonium polyphosphate is heated into polyphosphoric acid, heat insulation and flame retardance are achieved, the comprehensive performance of the material is improved, and a quaternized structure and a carbamate bond synergistically enhance the flame retardance and heat resistance of the material; in the ultraviolet light absorber, cyanuric chloride and benzotriazole intermediates absorb ultraviolet rays, so that the damage of the ultraviolet rays to the material is reduced, and the ageing resistance and the toughness are enhanced; the halogen-free flame-retardant TPU composite material prepared by the invention not only has good flame-retardant and heat-resistant effects, but also has excellent ultraviolet resistance.
Owner:JIANGXI PLASTIC HIGH-TECH MATERIALS CO LTD

Preparation method and application of composite nanoparticles with gold-silver core-shell structure

The invention discloses a preparation method and application of composite nanoparticles with a gold-silver core-shell structure, and aims to solve the problems that silver halide precipitates are generated on the surface of a silver core and the silver core is etched in the prior art. The thiourea solution is used for replacing a halogen-containing reagent, uniform epitaxial growth of gold on the surface of the silver core is mildly achieved, the gold-shell silver-core nanoparticles which are evenly wrapped and stable in structure are prepared, and the gold-shell silver-core nanoparticles are suitable for the fields of immunodetection and the like and are good in color development effect and low in cost. The method comprises the steps of preparing a gold salt solution, preparing gold nano-seeds, preparing silver nano-cores and generating gold-shell silver-core nano-particles through a chemical reduction reaction, and the problem that a core-shell structure grows unevenly is solved. When the method is applied to immunodetection, the material cost can be remarkably reduced, and a better color development effect can be achieved.
Owner:GUIZHOU UNIV

Liquid crystal composition, and liquid crystal display including the same

InactiveUS20160230091A1Improve advancedHigh-rate response characteristicLiquid crystal compositionsNon-linear opticsHalogenSingle bond
Disclosed is a liquid crystal composition. The liquid crystal composition includes liquid crystal molecules including at least one of a liquid crystal compound having an alkenyl group and a liquid crystal compound having an alkoxy group, and a first stabilizer including a compound having a structure represented by Formula 1:where n is 0 or 1; m is 0 or 1; k is 0 or 1; Z1, Z2, and Z3 are each independently a single bond, —C═C—, —OCO—, —COO—, —CF2O—, or a C1 to C5 alkylene group; X1, X2, X3, and X4 are each independently hydrogen or halogen; Y is hydrogen, an alkylene group, an alkoxy group, a hydroxyl group, —NHCOCH3, or ═O; and A and B are cyclic compounds.
Owner:SAMSUNG DISPLAY CO LTD

Device and method for the reversible adsorption and desorption of carbon dioxide in combustion exhaust gases

Device (1) according to Figure 1 for the reversible adsorption and desorption of carbon dioxide in combustion exhaust gases (1.1), which, viewed in the direction of flow of the combustion exhaust gases (1.1), is connected (i) to a device for cooling (1.1) or (ii) to such a device and a catalyst for selective reduction (SCR) or (iii) to an SCR, a catalyst for selective oxidation (SCO) and a feed line (Z) for (1.1) to the device (1), wherein the device (1) is sealable and comprises a device (2) for alternately cooling and heating an adsorber material (1.3) by means of a halogen-free liquid (2.1), a device (3) for collecting the desorbed carbon dioxide and a pressure vessel (4) for storing the desorbed carbon dioxide, wherein the adsorber material (1.3) consists of platelet-shaped metal microparticles or metal microflakes fixed with a polymer or adhesive matrix (1.6). (1.4) contains and the fixed metal microflakes (1.4) are present in such a quantity that the adsorption capacity of the adsorber material (1.3) is reduced to 1% to 50% of the adsorption capacity of the native adsorber material (1.3.1) free of fixed metal microflakes (1.4; 1.6), and a method for the reversible adsorption and desorption of carbon dioxide in combustion exhaust gases (1.1).
Owner:MUNCH ELKE

High-temperature-resistant flame-retardant nylon composite material and preparation method thereof

ActiveCN120607809AHalogenUv absorber
The invention discloses a high-temperature-resistant flame-retardant nylon composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The preparation method comprises the following steps: uniformly mixing 100-110 parts of nylon resin, 40-60 parts of a flame retardant, 1-3 parts of a lubricant, 0.5-2 parts of an antioxidant and 0.5-2 parts of an ultraviolet light absorber, adding the mixture into a double-screw extruder from a main feed, adding the flame retardant into the double-screw extruder from a side feed, and performing extrusion, bracing, cooling, pelletizing and drying to obtain the high-temperature-resistant flame-retardant nylon composite material. The flame retardant disclosed by the invention contains high-dispersity magnesium hydroxide and halogen-free flame-retardant elements, namely nitrogen, phosphorus and silicon, and does not contain any halogen, so that the flame retardant disclosed by the invention has the flame-retardant effects of high flame retardance, low smoke generation amount and low harmfulness, and the application field of a nylon composite material can be effectively widened.
Owner:GUANGDONG LIMEI NEW MATERIAL TECH CO LTD

Method and apparatus for manufacturing thin film

To provide a method for manufacturing a thin film, capable of greatly improving step coverability and thin film thickness uniformity even when forming a thin film on a substrate having a complicated structure by controlling a side reaction to reduce a thin film growth rate and removing a process by-product in the thin film.SOLUTION: A method for manufacturing a thin film comprises the steps of: i) adsorbing a growth inhibitor for thin film formation represented by chemical formula (1) on a substrate surface; and ii) adsorbing a Ti-based thin film precursor on the substrate surface having the adsorbed growth inhibitor. AnBmXo (1) (where, A is carbon or silicon; B is hydrogen or 1-3C alkyl; X is halogen; n is any integer of 1-15; o is an integer of one or more; and m is 0 to 2n+1.).SELECTED DRAWING: Figure 2
Owner:SOULBRAIN CO LTD

Composite electrodes with multilayer coatings

A solid electrode includes particles of an electroactive material, a solid electrolyte comprising particles of an ionic conducting compound having at least one halogen element, a conductive carbon, and a coating deposited on the particles of the electroactive material, the particles of the solid electrolyte, or a combination thereof. The coating includes a metal halide, a metal sulfide, a metal phosphide, a metal oxide, a metal selenide, or a combination of two or more thereof. A method for preparing the solid electrode includes milling a mixture of the electroactive material, the conductive carbon, and the solid electrolyte to produce the coated solid electrode material comprising the coating derived from decomposition products of the ionic conducting compound, the coating deposited on the particles of the electroactive material, the solid electrolyte, or a combination thereof.
Owner:UCHICAGO ARGONNE LLC

Acrylate-functional branched organosilicon compound, method of preparing same, and copolymer formed therewith

A method of preparing an acrylate-functional branched organosilicon compound (“compound”) is provided, and comprises reacting (A) a branched organosilicon compound and (B) an acrylate compound in the presence of (C) a catalyst, wherein component (A) has the general formula X—Si(R1)3, where X comprises a halogen-functional moiety and each R1 is selected from R and —OSi(R4)3, with the proviso that at least one R1 is —OSi(R4)3; each R4 is selected from R, —OSi(R5)3, and —[OSiR2]mOSiR3; each R5 is selected from R, —OSi(R6)3, and —[OSiR2]mOSiR3; each R6 is selected from R and —[OSiR2]mOSiR3; each R is an independently selected hydrocarbyl group; and 0≤m≤100; with the proviso that at least one of R4, R5 and R6 is —[OSiR2]mOSiR3. The compound prepared by the method, a copolymer comprising the reaction product of the compound and a second compound, a method of forming the copolymer, and a composition comprising the copolymer are each also provided.
Owner:DOW SILICONES CORP

Salt, acid generator, resist composition and method for producing resist pattern

Disclosed are a salt represented by formula (I), an acid generator and a resist composition:wherein Q1 and Q2 each represent a fluorine atom or a perfluoroalkyl group; R11 and R12 each represent a hydrogen atom, a fluorine atom or a perfluoroalkyl group; z represents an integer of 0 to 6; X1 and X2 each represent *—CO—O—, *—O—CO—, etc.; L1 represents a single bond or a hydrocarbon group which may have a substituent; A1 represents a group having a lactone structure which may have a substituent; L2 and L3 each represent a single bond or an alkanediyl group; R1 represents an iodine atom or a haloalkyl group; R2 represents a halogen atom, a hydroxy group, a haloalkyl group or an alkyl group; m2 represents an integer of 0 to 4; and Z+ represents an organic cation.
Owner:SUMITOMO CHEM CO LTD

Positive quantum dot light emitting diode and preparation method thereof

The invention provides a positive quantum dot light-emitting diode and a preparation method thereof, and belongs to the technical field of photoelectric materials. The invention provides a positive quantum dot light-emitting diode. The positive quantum dot light-emitting diode comprises an anode, a hole injection layer, a hole transport layer, a quantum dot light-emitting layer, an electron transport layer and a cathode from bottom to top, the electron transport layer is a ZnMgO thin film modified by halogen amine salt. According to the invention, the ZnMgO thin film is modified by using the halogen amine salt, so that the conduction band energy level of the ZnMgO electron transport layer can be moved upwards, the interface potential barrier between the electrode and the electron transport layer is increased, excessive electron injection can be blocked, and the carrier injection balance in the device is promoted. Meanwhile, amino cations in the halogen amine salt can passivate a hydroxyl defect state on the surface of ZnMgO, and high-electronegativity halogen ions enter ZnMgO crystal lattices to passivate oxygen vacancy defects, so that interface exciton quenching is reduced, and the radiation recombination efficiency of the device is improved.
Owner:HENAN UNIVERSITY

Near-infrared luminous ytterbium-doped quantum dot material as well as preparation method and application thereof

The invention belongs to the technical field of light-emitting materials, and particularly relates to a near-infrared light-emitting ytterbium-doped quantum dot material and a preparation method and application thereof. According to the preparation method of the near-infrared light-emitting ytterbium-doped quantum dot material, a Yb-doped perovskite quantum dot synthesis method which is high in near-infrared light-emitting intensity, good in stability and simple in preparation is innovatively provided, short-chain amine is used in the preparation process, and the near-infrared light-emitting ytterbium-doped quantum dot material has high reaction activity, small steric hindrance and high near-infrared light-emitting efficiency. The complex ability with precursor raw materials is low, chemical bonds between halogen and metal ions are easy to open in the reaction process, and the complex is matched with long-chain amine (such as oleylamine and the like) in a perovskite quantum dot system prepared by a conventional injection method, so that doping of rare earth Yb ions is facilitated, the Yb ions smoothly enter perovskite crystal lattices, and the perovskite quantum dot is prepared. The near-infrared luminous intensity of the material is improved.
Owner:WUXI UTMOST LIGHT TECH CO LTD

LED support anti-vulcanization packaging structure and method

The invention discloses an LED support anti-vulcanization packaging structure and method. Comprising an LED support and an LED chip, a stacking groove is formed in the LED support, a silver layer is arranged at the bottom of the stacking groove, the LED chip is welded to the silver layer, a protective film is arranged on the upper surface of the silver layer, and the protective film is formed by depositing and stacking any one or more of a metal chromium layer, an aluminum oxide layer, a silicon dioxide layer and a titanium dioxide layer in sequence from bottom to top in a specific environment. According to the LED support, the protection film is packaged on the outer surface of the silver layer on the LED support, so that erosion of sulfur elements, halogen elements or smelly elements and the like in the external environment to the silver layer is effectively prevented, stable performance of the silver layer is ensured, the stability and reliability of an LED product are further improved, the maintenance cost is reduced, and the service life of the product is prolonged.
Owner:SHENZHEN SMALITE OPTOELECTRONICS CO LTD