31results about How to "Strong launch" patented technology

A transparent glass ceramics of RE-doped oxyfluoride is proportionally prepared from SiO2, Al2O3, EnF2, MF2 and ReF3, where M is 2-valence alkali-earth metal ion chosen from Mg, Ca, Sr, and Ba and Re is 3-valence RE ion chosen from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, through high fusing and heat treating. It can be extensive used in laser, luminous and optical communication field.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.