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31results about How to "Strong launch" patented technology

Vacuum ultraviolet induced high colour purity red phosphor and preparation method thereof

The invention provides vacuum ultraviolet induced high colour purity red phosphor. The concrete chemical formula of phosphor is as follows: M (1plus x) M' (1 minus 2x) BP208: Eux, wherein x is more than 0 and less than or equal to 0.3, M is one or several of Li, Na and K, and the M' is one or several of Ba, Sr and Ca. The invention also provides a method for preparing the red phosphor, comprising the following steps: firstly, weighing corresponding raw materials according to the weight ratio expressed in the chemical formula; secondly, carrying out high-temperature roasting on the raw materials and rinsing coasted materials; and thirdly, carrying out separation, filtration, size grading and drying on the rinsed materials to obtain the vacuum ultraviolet induced high colour purity red phosphor having good colour purity and stable chemical property.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Vacuum ultraviolet induced green emitting phosphor and preparation method thereof

The invention provides vacuum ultraviolet induced green emitting phosphor which is characterized by having the following concrete chemical formula: M3 minus 2xBPO7: Tbx, Rx, wherein x is more than 0 and less than or equal to 0.3, R is one or several of Li, Na and K, and M is one or several of Mg, Zn, Ca, Sr and Ba. The invention also provides a method for preparing the green emitting phosphor, comprising the following steps: firstly, weighing corresponding raw materials according to the weight ratio expressed in the chemical formula; secondly, carrying out high-temperature roasting on the raw materials and rinsing coasted materials; and thirdly, carrying out separation, filtration, size grading and drying on the rinsed materials to obtain the vacuum ultraviolet induced green emitting phosphor having stable chemical property, short after time and excellent luminance.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Near-ultraviolet or ultraviolet excited semiconductor luminous material and its preparing method

The invention discloses a semiconductor emitting material that is stimulated by near ultraviolet or ultraviolet. The constituents are ZnO: Sx, My and 10-4<=x<=10-2, 0<=y<=0.2. M is selected from Li, Na, K or rare earth of Eu, Tb. When M is Na, it has better emitting effect. The invention also discloses the manufacture method and the performance testing result. The invention has strong absorption near 370-440nm wavelength ultraviolet and blue light zone, and has strong emission between 450-600nm wavelengths. It could be used in LED and LD.
Owner:SHANGHAI NORMAL UNIVERSITY

Fluophosphate-based light-emitting material and preparation method thereof

The invention provides a fluophosphate-based light-emitting material and a preparation method thereof. The light-emitting material has a chemical formula of MyRe1-xLnxPO4Fy, wherein M is an alkali metal element, Re is a rare earth element, Ln is Dy or u, x is 0.05-0.5 and y is 1 or 2. The preparation method comprises the following steps of: selecting source compounds of corresponding ions according to the mol ratios of corresponding elements in the formula and allowing the source compounds in phosphate radical ions to be exceeded by 5-30 percent according to the mol ratio; mixing the source compounds; carrying out pre-sintering treatment on the mixture and cooling; and taking out a sintered substance, grinding and calcining to obtain the light-emitting material. In the light-emitting material, the fluophosphate matrix is utilized to strongly absorb a vacuum ultraviolet waveband so as to increase the light-emitting efficiency; meanwhile, the fluophosphate matrix has stable physicochemical characteristics. The material has the advantages of low preparation temperature, energy saving, cost reduction and broad production and application prospects.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Silicate-based red phosphor for LED and preparation method of silicate-based red phosphor

The invention discloses a silicate-based red phosphor for LED and a preparation method of the silicate-based red phosphor. A silicate of a novel apatite, Ba2Y4La4(SiO4)6O2, is used as an initial substrate, by adding luminescent ion Eu<3+> ions and adjusting the ratio of La<3+> ions to Y<3+> ions, a red phosphor Ba<2>(Y<x>La<y>Eu<1-x-y>)<8>(SiO<4>)<6>O<2> is obtained, wherein the sum of x and y issmaller than 1. The phosphor has the characteristics that the phosphor obtains good luminescence performance by adjusting the relative content of Y<3+> ions and La<3+> ions to regulate the coordination environment of Eu<3+> ions. The red phosphor provided by the invention can emit bright red light in a range of 617-619 nm under near-ultraviolet excitation, and the phosphor has high luminous efficiency and good thermal stability. The afterglow time is short, the physical and chemical performance is stable, the preparation raw materials are cheap and easy to obtain, the method is simple and easyto repeat, and is beneficial to industrial production, and has broad application prospects.
Owner:JINGDEZHEN CERAMIC UNIV

Yellow green luminescent glass ceramic material and preparation method thereof

The invention belongs to the field of luminescent material, and discloses a yellow green luminescent glass ceramic material and a preparation method thereof. General chemical formula of the yellow green luminescent glass ceramic material is aCaO-bMgO-cSiO2-dEu2O3, in which a, b, c and d are mole fractions and a+b+c+d is equal to 100; numeric areas of a, b, c and d are respectively 30<=a<=50, 10<=b<=30, 30<=c<=50 and 0.1<=d<=1. The yellow green luminescent glass ceramic material provided by the invention has strong bandwidth excitation spectrum from ultraviolet to blue area and can emit strongyellow green light under excitation of ultraviolet or blue light.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Long wave ultraviolet excitation white luminous material and its preparation and application

The invention discloses a long-wave UV activated white-light luminescene material with a composition structure of ZnO:xMg (x is equal to or more than 0.01 and equal to or less than 0.1). The method of preparing the luminescene material of ZnO:xMg is as follows: preparing the precursor by grinding the weighed raw material of zinc source and magnesium source in a fume hood for thirty to forty minutes; sintering the precursor in the muffle furnace for one to two hours at a temperature of 950-1050 DEG C; grinding the sintered composition for five to ten minutes. The luminescene material of the invention presents a strong absorption in a long-wave UV region of 385-395nm and a strong emission in a region of 450-600nm, which can be used for white-light luminescene devices, laser diodes, flat panel displays, vacuum fluorescent displays, field emission displays and etc. The invention is characterized by simple preparation and operation technology, cheap and available raw material.
Owner:SHANGHAI NORMAL UNIVERSITY

Fluorescent probe with AIE property, preparation method and application of fluorescent probe in detection of transthyretin tetramer protein

ActiveCN112679425AHigh fluorescence intensityAvoid the effects of fluorescence quenchingOrganic chemistryFluorescence/phosphorescenceFluoProbesQuinoline
The invention discloses a fluorescent probe with an AIE property, preparation and application of the fluorescent probe in detection of transthyretin tetramer protein. The structural formula of the fluorescent probe is shown as a formula (I). The preparation method comprises the following steps: adding 6-(dimethylamino) quinoline-2-formaldehyde, 4-aminophenylacetonitrile and tetrabutylammonium bromide into ethanol, carrying out a reflux reaction under the conditions of sealing and 80 + / -5 DEG C, cooling to room temperature after the reaction is finished, standing to separate out a solid, carrying out suction filtration, and washing to obtain the fluorescent probe with the AIE property. The fluorescent probe with the AIE property, prepared by the invention, has a fluorescence aggregation-induced emission effect, can be combined with transthyretin tetramer protein to generate stronger fluorescence, and can be used for quantitative research of transthyretin tetramer protein of an organism.
Owner:SOUTH CHINA UNIV OF TECH

Two-component diatom mud water-based paint free of emission of VOCs

The invention relates to a two-component diatom mud water-based paint free of emission of VOCs. The two-component diatom mud water-based paint is characterized by being composed of a component A and acomponent B. The component A is prepared from the following raw materials in parts by weight: 0.5-1 part of potassium persulfate, 30-40 parts of diatom mud powder, 10-15 parts of rutile titanium dioxide powder, 6-12 parts of far-infrared ceramic powder, 45-75 parts of water, 1-2 parts of a leveling agent and 0.3-0.6 part of a defoaming agent. The component B is prepared from the following raw materials in parts by weight: 6-12 parts of a crosslinkable monomer, 2-4 parts of an antibacterial monomer, 0.1-0.3 part of a catalyst, 3-5 parts of water-based stearate and 15-25 parts of water. The two-component diatom mud water-based paint has good effects of resisting bacteria and purifying air, and has broad application prospects.
Owner:SHAOGUAN HEZHONG CHEM CO LTD +1

Terahertz wave moxibustion air hammer

The invention relates to the technical field of health care rehabilitation instruments, in particular to a terahertz wave moxibustion air hammer. The terahertz wave moxibustion air hammer is characterized by comprising a shell, a terahertz wave generator, a negative oxygen ion generator, an LED polychromatic light unit, a graphene heating film, a charging power source, a vibration motor, a fan, aswitch and a charging interface; and the terahertz wave generator, the negative oxygen ion generator, the LED polychromatic light unit, the graphene heating film, the charging power source, the vibration motor, a motor and the fan are installed in a cavity formed by the shell. Through the synergistic effect of terahertz waves, graphene film heating, negative oxygen ions and LED light waves, the product can resonate with cell molecules 20-30mm below the surface layer of a human body, can generate heat in the deep layer of the human body without any harm, can be held by a hand to beat or vibratefor massage along the meridians during use, can expel wind cold and moisture in the human body out of the body, and has good effects of improving microcirculation and dredging channels and collaterals.
Owner:北京国梦中和方略科技研究院

Double-component diatom ooze water-based paint with zero VOC (Volatile Organic Compound) emission

The invention relates to a double-component diatom ooze water-based paint with zero VOC (Volatile Organic Compound) emission, which is characterized by being formed by components A and B in parts by weight, wherein the component A comprises 0.5 to 1 part of potassium persulfate, 30 to 40 parts of diatom ooze powder, 10 to 15 parts of rutile type titanium dioxide, 6 to 12 parts of far-infrared ceramic powder; 45 to 75 parts of water, 1 to 2 parts of a leveling agent and 0.3 to 0.6 part of a defoaming agent; and the component B comprises 6 to 12 parts of crosslinkable monomer, 2 to 4 parts of antibacterial monomer, 0.1 to 0.3 part of a catalyst, 3 to 5 parts of water-based stearate and 15 to 25 parts of water. The double-component diatom ooze water-based paint has excellent antibacterial andair purification effects and wide application prospect.
Owner:刘鹏

Wide band ultraviolet excitation green luminous material and its preparation method

InactiveCN101104800AUniform and fine particle sizeChemically stableLuminescent compositionsUltravioletBroadband
Relating to a field of luminescene material, the invention discloses a method of preparing a bandwidth-UV-activated green-light luminescene material with a general composition formula of ZnO:xS;yM (x is equal to or more than 10-3 and equal to or less than 10-2, y is equal to or more than 10-3 and equal to or less than 10-2). The method of preparing the luminescene material is as follows: preparing the precursor by uniformly mixing the zinc-containing matrix raw material with haloid salt after grinding process, wherein the molar ratio of zinc element in the zinc-containing matrix raw material to halogent in the haloid salt is 1:0.01 to 1:0.2. The bandwidth-UV-activated green-light luminescene material of the invention presents a strong absorption in a long-wave UV region of 300-430nm and a strong emission in a wave region of 450-600nm and is characterized by simple preparation and operation technology, cheap and available raw material which has little environmental pollution and is suitable for industrialized production.
Owner:SHANGHAI NORMAL UNIVERSITY

Near-ultraviolet or ultraviolet excited semiconductor luminous material and its preparing method

The invention discloses a semiconductor luminescent material excited by near-ultraviolet or purple light, which is composed of ZnO:Sx, My and 10-4≤x≤10-2, 0≤y≤0.2, wherein M is selected from lithium, sodium, An alkali metal element of potassium or a rare earth element of europium or terbium, and when M is sodium, it has a better luminous effect. It also discloses the preparation method of the luminescent material by a low-temperature liquid phase method combined with a high-temperature solid-phase method and the performance test results. The invention prepares fine and high-efficiency fluorescent powder materials under relatively simple process conditions, has strong absorption in the long-wave ultraviolet and blue visible light regions of 370-440nm, and has strong emission in 450-600nm. It can be used in yellow-green light-emitting devices (LEDs), laser diodes (LDs), etc.
Owner:SHANGHAI NORMAL UNIVERSITY

Rare earth ion doped strontium silicate fluorescent powder and preparation method thereof

The invention relates to rare earth ion doped strontium silicate fluorescent powder and a preparation method thereof, the general formula of the fluorescent powder is Sr < 2-z > Ce < 0.04 > Tb < 0.06 > Yb < z > SiO4, and z is more than or equal to 0.01 and less than or equal to 0.05. The preparation method comprises the following steps: adding a small amount of H3BO3 into SrCO3, SiO2, CeO2, Tb4O7 and Yb2O3 to serve as a fluxing agent, fully grinding and uniformly mixing, placing in a reducing atmosphere, and preparing by a high-temperature solid phase method. The prepared fluorescent powder is stable in physicochemical property, the preparation method is simple, industrial production is easy, and the fluorescent powder has excellent down-conversion luminescence performance and has good application potential in the aspect of improving the efficiency of a silicon solar cell.
Owner:中化学南方建设投资有限公司 +1

Automatic discharging device for drainage opening material of three-plate mold

The invention discloses an automatic discharging device for a drainage opening material of a three-plate mold. The automatic discharging device comprises a panel, a material pushing plate connected with the panel and a discharging assembly arranged between the panel and the material pushing plate, wherein the discharging assembly comprises a pushing piece and a discharging piece, the discharging piece is movably connected with the material pushing plate, and the pushing piece is movably connected to the panel and the material pushing plate and connected with the discharging piece. Through the discharging assembly arranged between the panel and the material pushing plate, the material pushing plate moves relative to the panel and drives the pushing piece to move when a product is demolded, and the pushing piece pushes the discharging piece according to the lever principle to enable the drainage opening material to be automatically separated. The pushing force is large, and the stability is high. Moreover, the discharging piece does not move during injection molding, generation of redundant drainage opening material is avoided, consumables are reduced, and the production cost is reduced.
Owner:BEAR ELECTRICAL APPLIANCE CO LTD +1

Ceramic powder capable of promoting blood circulation, killing bacteria and releasing far infrared rays and application of ceramic powder in diatom ooze water-based paint

The invention relates to ceramic powder capable of promoting blood circulation, killing bacteria and releasing far infrared rays. The ceramic powder is prepared by the following method: (1) preparingmixed granules: adding transition metal oxide, silicon dioxide, aluminum oxide, cerium dioxide and water into ball milling equipment, carrying out ball milling for 4-6 hours, adding discharged materials, and carrying out spray granulation to obtain granules with the particle size of 20 meshes and the water content of 10%+ / -2%; (2) conducting sintering: pressing the material particles in the step (1) into a plate through dry pressing under the pressure of 30MPa, then conducting calcining for 5-8 hours at the temperature of 1,400-1,500 DEG C in a tubular kiln in a weak reducing atmosphere, and then conducting cooling to room temperature to obtain a compact plate; and (3) conducting crushing: crushing the compact plate, carrying out ball milling with zirconium beads for 4-8 hours, and conducting sieving with a 1200-mesh sieve to obtain the ceramic powder capable of promoting blood circulation, killing bacteria and releasing far infrared rays. Cerium dioxide is converted into a Ce2O3 crystal phase in the weak reducing atmosphere sintering process, the crystal phases of different powder bodies are interspersed, and the ceramic powder capable of promoting blood circulation, killing bacteria and releasing far infrared rays is formed.
Owner:刘鹏

A kind of fluorenyl oxadiazole iridium complex and its application

The invention discloses a fluorenyl oxadiazole iridium complex and its application. The structural formula of the fluorenyl oxadiazole iridium complex is shown in the following formula: wherein, R 2 , R 3 is the alkyl chain, R 1 For methyl. The prepared complex has better hole transport and electron transport properties, and can be used in the field of organic light-emitting diodes (OLEDs) and in the detection of nitro explosives.
Owner:NANJING UNIV OF POSTS & TELECOMM

A kind of heterotrinuclear metal organic alkyne complex and its preparation method and application

The invention belongs to the technical field of luminescent materials and organic light emitting diodes, in particular to a phosphorescent Pt 2 M (M=Au(I), Ag(I), Cu(I)) heterotrinuclear metal organic alkyne complexes, their synthesis methods and their applications as phosphorescent materials in organic light-emitting diodes. The heterotrinuclear organometallic alkyne complex represented by the formula (I) of the present invention has strong phosphorescent emission in solution, solid and film. The invention utilizes phosphorescent Pt for the first time 2 The M heterotrinuclear metal organic alkyne complex is used as a light-emitting material to assemble an organic light-emitting device. The organic light-emitting diode prepared by using the heterotrinuclear organic alkyne complex of the invention as the dopant of the light-emitting layer has high-efficiency electroluminescence, and the external quantum conversion efficiency (EQE) is higher than 12.5%.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Green fluorescent powder for LED and preparation method of green fluorescent powder

The invention discloses green fluorescent powder for LED and a preparation method of the green fluorescent powder. The chemical formula of the green fluorescent powder for LED is M8-xLa3(SiO4)3(PO4)3O2: xEu2+ (M is one of Ca, Sr and Ba, and x is greater than or equal to 0.001 and less than or equal to 0.5). The green fluorescent powder takes M8-xLa3(SiO4)3(PO4)3O2 as a matrix, and is doped with Eu2+. A high-temperature solid-phase method is mainly used for preparing the green fluorescent powder and comprises the following specific steps: weighing required raw materials according to stoichiometric ratio; ball-milling and mixing uniformly; then calcining the raw materials in a reducing atmosphere provided by N2 / H2; and cooling and pulverizing, and grinding and sieving to obtain the requiredfluorescent powder. The prepared fluorescent powder powerfully absorbs light in a spectral region of 300-400 nm, and the peak position of a transmitting spectrum is positioned in a green light spectrum range of 495-545 nm. The green fluorescent powder for LED has the advantages of wide exiting and transmitting light spectrum range and high luminous strength.
Owner:NANJING UNIV OF TECH

Electric heating material coated with biological ore material coating points

The invention provides an electric heating material coated with biological ore material coating points. The electric heating material is characterized by comprising a surface mica insulating layer and a bottom mica insulating layer; an electric heating device is arranged between the surface mica insulating layer and the bottom mica insulating layer; and the plurality of biological ore material coating points are coated on the outer surface of the surface mica insulating layer. According to the electric heating material, the surface of the heating material is coated with biological ore materials and the movement of negative ions and minerals is accelerated; and the effect of tourmalines is expressed to the maximum extent.
Owner:深圳市艾诺维电子科技有限公司
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