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31results about How to "Has luminous properties" patented technology

Rare earth metal ionic liquid, preparation method and application thereof

The invention relates to a novel ionic liquid of nitryl rare earth metal acid salt anion, a preparation method and an application thereof, and belongs to the fields of rare earth functional materials, preparations and applications thereof. According to the method, a rare earth metal nitrate solution is added into a corresponding imidazole or pyridine nitrate ionic liquid solution in a mole ratio of 1:3, a solvent is removed after a reaction, and the rare earth metal ionic liquid is obtained. The prepared ionic liquid of the nitryl rare earth metal acid salt anion has good stability, is provided with characteristics of the ionic liquid as well as advantages of the rare earth metal simultaneously, and can be provided with characteristics of luminescence and magnetism; and the required cost is low, the preparation is simple and convenient, the product purity is high, the ionic liquid is suitable for large-scale production and application, and liquid luminescent materials / liquid magnetic materials with high-concentration rare earth can be prepared through the provided process which is simple, efficient and environment-friendly.
Owner:SICHUAN UNIV

Synthesis method of platy-ZnSe fluorescent nano monocrystal

The invention belongs to a synthesis method of nano material, in particular to a synthesis method of platy-ZnSe fluorescent nano monocrystal, which comprises: under inert gas protection, heating and stirring or ultra-dissolving elementary substance Se in trioctylphosphine to obtain Se precursor; dissolving Zn source in octadecene, and adding activator long-chain alkylamines under inert gas protection to carry out 'activation' treatment; then introducing template agent long-chain alkyl sulfhydryl to carry out 'templated' treatment to activated Zn precursor, and finally heating up to the synthesis reaction temperature (300 to 350 DEG C) under inert gas protection; quickly adding the Se precursor in the Zn precursor, and reacting for a certain time to obtain original solution crude product of the platy-ZnSe fluorescent nano monocrystal. The final product of clear solvent of platy-ZnSe fluorescent nano monocrystal can be obtained through adding mixed solution consisting of high-polar organic solvent and low-polar organic solvent to wash and centrifuge, and finally dissolving with the low-polar organic solvent. The method has the advantages of simple reaction system, easy availability of raw material, little environment pollution, good crystallinity and high fluorescent quantum yield.
Owner:YUNNAN UNIV

BNT-base lead-free electrostriction material with light-emitting characteristic and preparation method thereof

The invention belongs to the field of photoelectric functional materials, and provides a BNT-base lead-free electrostriction material with light-emitting characteristic. The chemical composition conforms to the chemical general formula (1-x)(Bi0.5Na0.5)TiO[3]-xM-yR, wherein M is selected from BaTiO3 or (Ba0.90Ca0.10)(Ti0.92Sn0.08)O3, R is selected from one of Pr, Sm, Eu, Tb, Gd, Dy, Er, Ho or Tm, 0.06<= x <=0.09, and 0.001<= y <=0.01. The invention also provides a preparation method and application of the BNT-base lead-free electrostriction material with light-emitting characteristic. The material has the photoluminescent characteristic and excellent zero-lag electrostriction property, and is hopeful to be applied to the technical fields of photoelectric integration, micro electromechanical systems, photoelectric sensing and LEDs (light-emitting diodes).
Owner:LIAOCHENG UNIV

Mn<4+> ion-doped red phosphor, and preparation method and application thereof

The invention discloses a Mn<4+> ion-doped red phosphor, and a preparation method and an application thereof. The general chemical formula of the phosphor is Cs3Ge2Sb3O13:xMn<4+>, wherein x is the molar ratio of doped Mn<4+>, and x is not less than 0.0005 and not more than 0.015. The above material prepared in the invention is responsive in a blue light, near ultraviolet light or ultraviolet lightwavelength range, emits red fluorescence in a wavelength range of 620-750 nm, and can be used to substitute a traditional rare earth-doped red light source; and the excitation spectrum range of the phosphor is wide, strong absorption exists in 355 nm, and the excitation spectrum range is consistent to the luminescence waveband of a commercial ultraviolet-blue light chip. The preparation method ofthe phosphor is simple; and compared with rare earth phosphor, the phosphor disclosed in the invention has the characteristics of wide selectivity of raw materials, and low cost, is a red fluorescentmaterial having a good luminescence performance, and can be used to manufacture near ultraviolet light or blue light excited white LED phosphor.
Owner:苏州美纳福健康科技有限公司

Durable luminous pavement brick or curbstone and preparation method thereof

InactiveCN111747695AIncrease light perceptionHas luminous propertiesBrickWeather resistance
The invention provides a durable luminous pavement brick or curbstone and a preparation method thereof. The pavement brick or curbstone comprises a surface layer and a base layer, the base layer is made of dry hard concrete or pervious concrete, and the surface layer is prepared from, by weight, 5-20 parts of resin, 50-90 parts of quartz sand, and 5-35 parts of luminescent powder. According to thedurable luminous pavement brick or curbstone provided by the invention, the light sensation of a pavement is increased, the construction is convenient, the weather resistance is high, and traffic safety accidents are reduced.
Owner:天津欧拓砌块有限公司

High-heat-dissipation luminous keyboard membrane and preparation method thereof

The invention discloses a high-heat-dissipation luminous keyboard membrane and a preparation method thereof. The high-heat-dissipation luminous keyboard membrane is prepared from the following components of polycarbonate, polyacrylate, luminous powder, graphene, modified attapulgite clay, nanometer titanium dioxide, magnetic component, anti-aging agent, antioxidant and flame retardant. The preparation method comprises the following steps: adding the polycarbonate and the polyacrylate into a reaction kettle, heating, melting, adding the graphene, mixing and reacting for 1 to 2 hours; adding the luminous powder, the anti-aging agent, the antioxidant and the flame retardant, stirring uniformly, and performing shearing dispersion; adding the modified attapulgite clay and the nanometer titanium dioxide, stirring uniformly, placing a mixture into an ultrasonic environment and holding for 10 to 20 minutes, adding the magnetic component, mixing uniformly, and placing a mixture into a membrane forming machine for membrane forming to obtain the keyboard membrane. The keyboard membrane has higher heat dissipation performance and higher luminous characteristic, so that a computer can be operated without turning on a light at night, and the energy consumption is lowered greatly; the high-heat-dissipation luminous keyboard membrane has better significance.
Owner:合肥展游软件开发有限公司

Luminous pearl nucleus and preparation method thereof as well as method for cultivating luminous pearls

The invention provides a luminous pearl nucleus and a preparation method thereof as well as a method for cultivating luminous pearls. The method for preparing the luminous pearl nucleus comprises the following steps of uniformly mixing fluorescent powder with other randomly-selected components and putting the mixture into a crucible; putting the crucible into a reducing atmosphere furnace to be heated; after 5-8 hours, slowly raising the furnace temperature to 1150-1600 DEG C; pressurizing to be more than two barometric pressures and keeping a constant temperature and a constant pressure for 2-3 hours; directly utilizing a mould to press the fluorescent powder at a fused state into a luminous pearl nucleus shape; or after keeping the constant temperature and the constant pressure for 2-3 hours, naturally cooling to be condensed; and taking the crucible out of the atmosphere furnace and cooling to a room temperature, and polishing a condensed body into the luminous pearl nucleus shape. The luminous pearls cultivated by using the luminous pearl nucleus can resist corrosion of chemicals such as an acid, an alkali and the like, and can emit high-brightness light for a long time.
Owner:广东尊鼎珍珠有限公司

3D printing ABS composite material capable of continuously emitting light and preparation method thereof

The invention discloses a 3D printing ABS composite material capable of continuously emitting light and a preparation method thereof. The preparation method comprises the following steps: respectively weighing long afterglow fluorescent powder, KH550, ABS particles and ABS powder; adding the KH550 into deionized water, carrying out hydrolyzing and stirring, adding fluorescent powder, performing refluxing, cooling and washing, carrying out vacuum drying to constant weight, and conducting grinding to obtain KH550 modified fluorescent powder; after the ABS powder is acidified by hydrochloric acid, grafting the acidified ABS powder with the KH550 modified fluorescent powder through HATU to obtain a composite material; and subjecting the composite material to melting and manufacturing through a 3D printing extruder, and carrying out extrusion and drawing to obtain the 3D printing ABS composite material capable of continuously emitting light. According to the preparation method, the combination of a long-afterglow luminescent material and a 3D printing technology is realized, and the prepared 3D printing composite material not only can continuously emit light, but also has good mechanical properties, can be applied to the aspects of medicine, the manufacturing industry, the food industry, the industry, the jewelry industry and the like, and greatly expands the application field of 3D printing.
Owner:NORTHWEST NORMAL UNIVERSITY +1

Preparation method of luminous zipper

According to a preparation method of a luminous zipper, energy-storage luminous polyester yarns are woven into a luminous zipper base band, energy-storage luminous injection molding material particlesare used for preparing the luminous zipper blank, and the energy-storage luminous zipper is obtained through after-treatment; the energy-storage luminous polyester yarns are light-absorption energy-storage polyester fibers prepared by adding a light-storage energy-storage rare earth material into polyester; the energy-storage luminescent injection molding material particles are injection moldingparticles prepared by adding a powdery light-storage luminescent material into polyester or polyformaldehyde, and have a melt index of 17-22g / 10min. According to the method, the process arrangement isreasonable, the preparation cost is moderate, and the prepared luminous zipper has the characteristics of light absorption, energy storage and luminescence, can continuously emit light in a dark environment, and is excellent in physical property index and safe to use.
Owner:SHANGHAI SBS ZIPPER MFG

Antistatic computer fan composite material

The invention belongs to the technical field of computer material, and provides an antistatic computer fan composite material. The antistatic computer fan composite material comprises the following raw materials in parts by weight: 53-60 parts of polytetrafluoroethylene, 12-20 parts of graphene reinforcing fibers, 13-20 parts of organic fibers, 6-11 parts of conductive polymers, 2-7 parts of diffusing oil, 2-5 parts of a fire retardant , 1-3 parts of zinc-copper alloy, and 1-5 parts of plasticizer. The polytetrafluoroethylene is used as a main material of the antistatic computer fan composite material, auxiliary materials including the conductive polymers, the diffusing oil, the fire retardant, the zinc-copper alloy, the plasticizer and the like are added, and therefore, the compressive strength, the toughness and the antistatic property of the composite material are improved.
Owner:HEFEI DONGHENGRUI ELECTRONICS TECH CO LTD

Preparation method of rare earth cerium doped gallium oxide nano material

The invention discloses a preparation method of a rare earth cerium doped gallium oxide nano material. The preparation method comprises the following steps of: preparing a silicon substrate; fully grinding gallium oxide, cerium oxide and carbon powder to obtain mixed powder; putting the mixed powder into a tubular furnace, introducing argon, and heating for pre-reaction; and under the action of argon-oxygen mixed gas, cooling to obtain the rare earth cerium doped gallium oxide nano material. The rare earth cerium-doped gallium oxide nano material is prepared through a carbon thermal reduction method under the condition of not adding a surface metal catalyst, the method is simple in process step, low in cost, low in equipment requirement and beneficial to industrial production, and the problems that in the prior art, the preparation process of the rare earth cerium-doped gallium oxide nano material is complex, and the requirement on manufacturing equipment is high are solved.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Polylactic acid-based 3D printing composite material capable of continuously emitting light, and preparation method thereof

The invention discloses a polylactic acid-based 3D printing composite material capable of continuously emitting light, and preparation thereof. The composite material is prepared from, by mass, long afterglow fluorescent powder, KH570 and polylactic acid. The preparation method comprises the following steps: adding the long-afterglow fluorescent powder into ethanol, carrying out ultrasonic oscillation, adding KH570, adjusting the pH value, refluxing, cooling, washing, carrying out vacuum drying to constant weight, and grinding to obtain KH570 modified fluorescent powder; carrying out vacuum drying on polylactic acid, and blending with KH570 modified fluorescent powder to obtain a blend; and performing melt manufacturing on the blend through a 3D printing extruder, and extruding and drawing to obtain the polylactic acid-based 3D printing composite material capable of continuously emitting light. According to the preparation method, the combination of a long-afterglow luminescent material and a 3D printing technology is realized, and the prepared 3D printing composite material not only can continuously emit light, but also has good mechanical properties, can be applied to the aspects of medicine, the manufacturing industry, the food industry, the industry, the jewelry industry and the like, and greatly expands the application field of 3D printing.
Owner:NORTHWEST NORMAL UNIVERSITY +1

Synthesis method of platy-ZnSe fluorescent nano monocrystal

The invention belongs to a synthesis method of nano material, in particular to a synthesis method of platy-ZnSe fluorescent nano monocrystal, which comprises: under inert gas protection, heating and stirring or ultra-dissolving elementary substance Se in trioctylphosphine to obtain Se precursor; dissolving Zn source in octadecene, and adding activator long-chain alkylamines under inert gas protection to carry out 'activation' treatment; then introducing template agent long-chain alkyl sulfhydryl to carry out 'templated' treatment to activated Zn precursor, and finally heating up to the synthesis reaction temperature (300 to 350 DEG C) under inert gas protection; quickly adding the Se precursor in the Zn precursor, and reacting for a certain time to obtain original solution crude product of the platy-ZnSe fluorescent nano monocrystal. The final product of clear solvent of platy-ZnSe fluorescent nano monocrystal can be obtained through adding mixed solution consisting of high-polar organic solvent and low-polar organic solvent to wash and centrifuge, and finally dissolving with the low-polar organic solvent. The method has the advantages of simple reaction system, easy availability of raw material, little environment pollution, good crystallinity and high fluorescent quantum yield.
Owner:YUNNAN UNIV

Organic light-emitting compound and preparation method and application thereof

The invention discloses an organic light-emitting compound as well as a preparation method and application thereof. The organic light-emitting compound has a structural formula shown in the specification, wherein in the structural formula, R is C6-C12 alkyl. According to the preparation method, 2-alkylpyrrolo[3,4-c]pyrrole-1-3(2H, 5H)-diketone is taken as a main body, and chromophoric groups, indole, are respectively introduced into symmetrical positions on two sides of pyrrole, and thereby the organic light-emitting compound is finally obtained. The organic light-emitting compound has a light-emitting characteristic in an organic solvent, wherein the fluorescence intensity is further improved after anions are introduced into a system; the organic light-emitting compound can be applied tothe fields of light-emitting devices, laser dyes, fluorescence sensitivity, anti-counterfeiting technologies, fluorescence imaging, biomedical analysis and the like.
Owner:JIANGHAN UNIVERSITY

A kind of luminous ceramic glazed tile and its preparation method

The invention discloses a luminescent ceramic glazed tile, which comprises a green body layer, a ground glaze layer, a fancy glaze layer, a luminous layer and a glaze polishing layer from the bottom up. The luminous layer is composed of luminescent powder with grain fineness of 80-120 meshes. According to the invention, the luminous layer is independently arranged between the fancy glaze layer andthe glaze polishing layer, coarse grain luminescent powder with appropriate granularity is adopted as the raw material, luminescent properties inside the luminescent powder can be ensured after corrosion of the coarse grain luminescent powder surface layer, and the problem that a high temperature flux easily erodes the traditional luminescent powder and destroys the internal structure of luminescent powder, and results in luminescent powder failure can be overcome. The invention also discloses a preparation method of the luminescent ceramic glazed tile, the method has the advantages of simple process and strong controllability, also can perform mild polishing treatment on the surface of the ceramic glazed tile in virtue of the high refractoriness of luminescent powder, makes the coarse grain luminescent powder have the characteristics of anti-skid particles, and endows the luminescent ceramic glazed tile with anti-skid function.
Owner:FOSHAN OCEANO CERAMICS +1

A kind of azo chiral metal complex, its synthesis method and application

The present invention discloses azo chiral metal coordination compounds, a synthesis method and applications thereof, and relates to a variety of azobenzene group-containing chiral Schiff base metal coordination compounds substituted with different substituents. According to the present invention, the obtained metal coordination compounds have characteristics of reversible photochromism property of the azobenzene function group, light-emitting property of the Schiff base metal coordination compound, and the chiral characteristic of the molecule, and have good application potential in the photochromism field, and the preparation method has characteristics of simple preparation conditions, easy operation, mild reaction conditions and easily available raw materials, and is suitable for popularization and application.
Owner:XIAMEN UNIV

Thiophene [3,4-b] thiophene panchromatic fluorescent dye as well as preparation method and application thereof

The invention relates to a thiophene [3,4-b] thiophene panchromatic fluorescent dye as well as a preparation method and an application thereof. The invention provides a thiophene [3,4-b] thiophthene aryl substituted compound which has a panchromatic luminance property and high fluorescence quantum yield in a strongly aprotic solvent, and further provides a preparation method which is capable of synthesizing the compound greenly and efficiently through a one-step reaction, is low in production cost and has industrial production potential. The method comprises a C-H direct arylation reaction and a Suzuki-miyara or Stille cross coupling reaction; and meanwhile the compound can be applied to medicinal diagnosis, disease treatment, luminescent layers of white light or organic light emitting diodes, and the like.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Die, method for manufacturing organic light-emitting diode, and organic light-emitting diode

This die has a flat surface and a plurality of projections on the principal surface. The average pitch of the plurality of projections is 50 nm to 5 [mu]m, and the average aspect ratio of the plurality of projections is 0.01 to 1. Eighty percent or more of the plurality of projections have a prescribed curved surface. In the prescribed curved surface, an inclined angle of a second tangent plane incontact with a second point relative to a first tangent plane in contact with a first point is within the range of 60 degrees, where the first point represents any point on the prescribed curved surface and the second point represents a point displaced from the first point by 1 / 10 of the average pitch.
Owner:OJI HLDG CORP

Lighting type fluorescent probe for formaldehyde detection

A novel 1, 8-anhydride naphthalene derivative is developed, and the 1, 8-anhydride naphthalene derivative shows opening fluorescence response to formaldehyde in both a solution and a gas phase. In the presence of formaldehyde, a fluorescence response opening phenomenon of the reacted 1, 8-anhydride naphthalene derivative is observed at 520 nm. Through calculation, the detection limit of the probe with the fluorescence opening effect is 38.0 [mu] M.
Owner:THE HONG KONG UNIV OF SCI & TECH

Self-pumping optical parametric oscillation matrix crystal and preparation method thereof

The invention discloses a self-pumping optical parametric oscillation matrix crystal. According to the preparation of the crystal, a rare earth doped laser crystal and a MgO: PPLN nonlinear optical parametric oscillation crystal are combined to form a Re: Mg: LN composite crystal; ferroelectric domain periodic inversion treatment is performed on the Re: Mg: LN composite crystal. According to the periodically polarized double-doped lithium niobate crystal, the laser crystal and the nonlinear crystal are combined into the multifunctional composite crystal, and therefore, the light path of an intermediate-infrared laser is simplified, the size of the intermediate-infrared laser is reduced; and the periodically polarized double-doped lithium niobate crystal not only has the nonlinear optical parametric oscillation effect of the MgO:PPLN, but also has the light-emitting characteristic of the rare earth laser crystal.
Owner:UNIV OF JINAN +2

Fluorescent glass ceramic and preparation method thereof

The invention provides a novel YAG: Ce / LTA fluorescent powder / glass composite material (phosphorin glass, PiG) and a preparation method thereof, the PiG material is mixed according to the mass ratio of YAG: Ce = x LTA, and x is greater than or equal to 0.01 and less than or equal to 100. The preparation method of the PiG material comprises the following steps: mixing YAG: Ce fluorescent powder andthe LTA molecular sieve according to a certain mass ratio; then adding absolute ethyl alcohol, and fully and uniformly mixing through a planetary ball mill; drying an obtained slurry to obtain powder, directly putting the powder into a box-type furnace for sintering, heating the LTA molecular sieve at high temperature to form glass, and uniformly embedding YAG: Ce fluorescent powder into the glass to obtain the YAG: Ce / LTA PiG material. The preparation method disclosed by the invention has the advantages of simple preparation process, low cost, no toxicity in the preparation process and the like, and the PiG material prepared by the preparation method disclosed by the invention has excellent chemical and physical stability, excellent heat resistance, excellent moisture resistance and relatively high luminous efficiency.
Owner:贵州赛义光电科技有限公司 +1
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