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77results about How to "Strong luminous ability" patented technology
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Preparation of protamine gold nanoclusters and application in analogue enzyme color comparison and fluorescence detection
InactiveCN106583747ADetermination of concentrationEasy to makeTransportation and packagingMetal-working apparatusDisease markersOxygenase activity
The invention relates to preparation of protamine gold nanoclusters and application in analogue enzyme color comparison and fluorescence detection. The protamine gold nanoclusters not only have activity of horseradish peroxidase and oxidase, but also have fluorescent characteristic. Hereby, a protamine gold nanocluster analogue enzyme visual color comparator and a fluorescence sensor are established respectively and are used for detecting heavy metal ions. The protamine gold nanoclusters are prepared simply and conveniently, are low in cost, and have excellent fluorescence stability and chemical stability, and the shortcomings that fluorescence of traditional dyestuff is short in service life, photobleaching occurs easily and the like can be overcome; a fluorescence method is high in sensitivity and good in stability, and expensive instruments are not required; and analogue enzyme catalytic color comparison is sensitive and environment-friendly, and can be used for field real-time monitoring. The protamine gold nanoclusters are expected to be expanded and applied to detection and analysis of related substances in the fields of environment and biomedicines and disease markers, and have wide application prospect.
Owner:NANHUA UNIV
Electro-luminescent porous silica material and its preparation method
InactiveCN1805160AStrong luminous abilityEfficient luminous abilityElectroluminescent light sourcesLuminescent compositionsFluohydric acidCompound (substance)
The invention relates to an electroluminescence porous silicon and relative preparation method, belonging to the electroluminescence porous silicon technique. Said invention is formed by a silicon base; a porous silicon layer above one side of silicon base; and a silicon line layer above porous silicon layer whose average diameter is 200-500 nanometers and length is 2-10 microns. The preparation method comprises: putting the washed silicon plate into the water solution of fluohydric acid and silver nitrate to be chemical etched; putting the etched silicon plate into the water solution of fluohydric acid and ethanol to be electrical chemical etched to attain the electroluminescence porous silicon. The invention has simple preparation process, and the electroluminescence porous silicon has a silicon line layer above the porous silicon layer with higher lighting ability than present electroluminescence porous silicon.
Owner:TIANJIN UNIV
Development and application of Ag nano-cluster electrochemiluminescence sensor based on in-situ synthesis
InactiveCN108226141AStrong luminous abilityHighly selective detectionChemiluminescene/bioluminescenceDna recognitionElectrochemiluminescence
The invention discloses an application of an electrochemiluminescence biosensor based on cytosine (C)-containing cyclic DNA sequences where in-situ reduced Ag nano-clusters are enriched as signal probes and adopting dual amplification strategy to detection of target thrombin. According to the technical scheme, DNA cleavage enzyme with hairpin DNA recognition capability and catalysis effect is designed, when target thrombin exists, hairpin DNA is opened, and substrate DNA is cleaved under the action of Zn<2+>; a large quantity of cytosine (C)-containing cyclic DNA sequences are aggregated through HCR (hybridization chain reaction), in-situ reduction of AgNO3 is performed on the electrode surface by NaBH4, a large quantity of Ag nano-clusters are formed, and the electrochemiluminescence biosensor with dual amplification effect is prepared. The sensor is subjected to luminescence detection, and a linear relation is formed between light-emitting signals and concentration of a to-be-testedsample. The Ag nano-cluster signal probes and the DNA dual amplification technology are combined for rapid and high-sensitivity detection of thrombin, and the electrochemiluminescence biosensor has great application potential in early clinical analysis and detection.
Owner:QINGDAO UNIV OF SCI & TECH
Organic luminous material and preparation method thereof
InactiveCN101962534ASimple manufacturing processCan be produced industriallyLuminescent compositionsBottleDimethyl siloxane
The invention provides an organic luminous material and a preparation method thereof, and relates to an organic silicon polymer. Raw materials of the organic luminous material comprise metallic organic substance and polycarbosilane. The preparation method comprises the following steps of: putting polydimethylsiloxane into a reaction kettle, heating the polydimethylsiloxane under the protection ofargon, inflating the argon to the reaction kettle, adding n-hexane into the reaction kettle to dissolve the product after the temperature in the reaction kettle is naturally cooled to room temperature, filtering the product, removing the n-hexane in vacuum to obtain the polycarbosilane, soaking the ground polycarbosilane into ethanol, flushing the insoluble substances by using the ethanol and then drying the insoluble substances in vacuum; and pouring the polycarbosilane powder and the metallic organic substance powder into a three-necked bottle, heating the mixed powder to between 150 and 160 DEG C under the protective atmosphere of argon, preserving the heat for 1 to 1.5 hours, heating the mixed powder to between 260 and 270 DEG C, preserving the heat for 1 to 1.5 hours, dissolving the product by using the dry n-hexane after the reaction is finished and the product is cooled, filtering the product to remove the insoluble substances, and finally distilling the product with reduced pressure to obtain the powdery solid organic luminous material.
Owner:XIAMEN UNIV
Preparation method of luminous decorative plate
The invention discloses a preparation method of a luminous decorative plate. The preparation method comprises the following steps: 1) preparing material: water-based luminous ink is prepared by the following raw materials in percentage by weight: a material A composed of 5-20% of water-based acrylic resin, 8-20% of luminous powder, 0.5-2% of a dispersant, 0.2-0.5% of a defoaming agent and 15-20% of tap water, a material B composed of 10-20% of a casein solution, 0.3-0.5% of a defoaming agent, 0.5-2% of an anti-settling agent, 5-10% of ethanol, 2-5% of propylene glycol, 20-40% of tap water and 1-2% of a leveling wetting agent and a material C composed of 0.5-2% of a thickening agent and 0.5-1% of a pH value regulator; 2) printing; 3) dipping; 4) pressing, so as to obtain the luminous decorative plate. The luminous decorative plate prepared through the method provided by the invention has the effect of environmental protection and a long-term luminous function, and further has the characteristics of light fastness, scratch resistance, wear resistance, and natural and vivid texture.
Owner:CHANGZHOU WEIXING DECORATIVE MATERIALS
Method for preparing chiral dual-core europium beta-diketone complex luminescent material
ActiveCN103896972AShort reaction timeHigh yieldGroup 3/13 element organic compoundsLuminescent compositionsPyrazineKetone
The invention discloses a method for preparing a chiral dual-core europium beta-diketone complex luminescent material. The method comprises the following steps: dissolving Eu(tta)3.2H2O into ethanol to prepare a solution a of which the concentration is 0.01mol / L at normal temperature; dissolving an organic bridging ligand (-)-2,5-bi(4,5-pinene-2-pyridyl) of chiral pinene pyridine pyrazine derivatives into acetone to prepare a solution b of which the concentration is 0.005mol / L; mixing the solution a with the solution b at equal volume and then agitating for 20 minutes; standing the mixed solution; filtering after 6-8 days; and washing by using absolute ether and drying in vacuum, so as to prepare the chiral dual-core europium beta-diketone complex luminescent material. The luminescent material is mild in synthesis condition, high in yield, strong in stability, and easy to separate and purify, and is expected to have a broad application prospect in the aspects such as an electroluminescent device, a bioluminescent probe, a nonlinear optical material and a light conversion molecular device as a novel luminescent material.
Owner:郑州轻大产业技术研究院有限公司
Organic light emitting compound and organic electroluminescent device using same
PendingCN110944988AImprove heat resistanceStrong luminous abilityOrganic chemistrySolid-state devicesOrganic electroluminescenceOrganic chemistry
Owner:SOLUS ADVANCED MATERIALS CO LTD
Phosphor for vacuum ultravilet ray-excited light-emitting element
InactiveCN1498940AReduce brightnessStrong luminous abilityGas discharge electrodesLuminescent compositionsPhosphorUltraviolet
A phosphor for vacuum ultraviolet ray-excited light-emitting elements which comprises a compound represented by the following formula (I): <?in-line-formulae description="In-line Formulae" end="lead"?>M11-a-b-c-dM2aM3bM41-eM511-fM6c-d+e+fO19-(b+c+f) / 2 (I)<?in-line-formulae description="In-line Formulae" end="tail"?> (wherein M1 is at least one element selected from the group consisting of La, Y and Gd, M2 is at least one element selected from the group consisting of Ce and Tb, M3 is at least one element selected from the group consisting of Ca, Sr and Ba, M4 is at least one element selected from the group consisting of Mg and Zn, M5 is at least one element selected from the group consisting of Al and Ga, and M6 is at least one element selected from the group consisting of Mn and Eu, and a, b, c, d, e and f are numbers satisfying the conditions of 0<=a<1, 0<=b<=0.6, 0<=c<=0.5, 0<=d<=0.5, 0<=e<1, 0<=f<1, a+b+c+d<1 and 0<c+d+e+f), respectively.
Owner:SUMITOMO CHEM CO LTD
Preparation method of luminescence composite heat stabilizer
The present invention discloses a preparation method of a PVC composite heat stabilizer having luminescent property and stability. The luminescence composite heat stabilizer is prepared by taking dibasic lead phosphite, tribasic lead sulfate, epoxy calcium soap, and epoxy zinc soap as main stabilizers, taking aromatic carboxylic acid rare earth as an auxiliary stabilizer and a luminescent component, then adding an appropriate amount of auxiliary stabilizers, antioxidants, and lubricants, and optimistically complexing through the pre-preparation of aromatic carboxylic rare earth and the preparation of luminescence composite heat stabilizer according to the synergistic effect. The luminescence composite heat stabilizer of the present invention has excellent heat stability, and also a good luminescent property, and can be used for preparing various hard and soft PVC photoluminescence materials.
Owner:FUJIAN NORMAL UNIV
Preparation method for PVC photoluminescence soft film by using light-emitting composite heat stabilizer
InactiveCN102942749AGood synergyImprove thermal stabilityLuminescent compositionsPhotoluminescencePlasticizer
The present invention relates to the technical field of polymer, and more particularly relates to a preparation method for a PVC photoluminescence film by using a PVC composite heat stabilizer having luminescence property and stability. The PVC photoluminescence film is prepared by 100 parts by weight of PVC, 2-5 parts by weight of a luminescence composite heat stabilizer, 10-80 parts by weight of a plasticizer, 0-10 parts by weight of calcium carbonate, and 0.5-2 parts by weight of a lubricant. The preparation method for the PVC photoluminescence soft film of the present invention has the advantages that the preparation method is simple, the prepared material has a relative density of 1.3+ / -0.1g / cm<3> and a moisture content of no more than 0.2%, the stretched strength of the film (longitudinal / transverse) is no less than 19MPa, breaking elongation of the film (longitudinal / transverse) is no less than 250%, the right-angled tear strength (longitudinal / transverse) is no less than 35kN / m, etc.
Owner:FUJIAN NORMAL UNIV
Fluorene acid ester fluorescent material and preparation method thereof
InactiveCN102876318AClear spatial structureExact molecular formulaOrganic compound preparationCarboxylic acid esters preparationCrystal systemFluorescence
The invention discloses a fluorene acid ester fluorescent material and a preparation method thereof. The fluorene acid ester fluorescent material is characterized in that the fluorene acid ester fluorescent material is a fluorene acid ester organic compound of which the molecular formula C33H30O4, the crystal system is monoclinic, a space group is P21 / c, cell parameters include a=31.605 , b=7.3795 , c=24.224(3) , alpha=gamma=90, and beta=110.726 degrees. The fluorene acid ester fluorescent material is formed by proportionally mixing 9, 9-diethyl-2, 7-dibromo fluorene, 4-methoxycarbonyl group phenylboronic acid, tetrakispalladuium and potassium carbonate to react and has clear space structure and accurate molecular formula, synthesis conditions thereof are not rigorous, synthesis steps are simple, equipment cost is low, reaction conditions are mild, and yield can reach 50-75%. By introducing methoxycarbonyl group and phenyl group at 2 and 7 orders of the fluorene, electronic cloud density of the fluorescent material is increased, fluorescent performance is improved, stability, solution performance and fluorescent efficiency are improved and the service life is prolonged.
Owner:NINGBO UNIV
Organic compound and organic electroluminescent element comprising same
InactiveCN106458961AImprove thermal stabilityImprove carrier transport performanceOrganic chemistrySolid-state devicesOrganic layerOrganic electroluminescence
Owner:SOLUS ADVANCED MATERIALS CO LTD
Method for preparing steady-persistence luminous ceramic membrane through aluminum or aluminum alloy surface micro-arc oxidation
InactiveCN103741188AWith fluorescent effectImprove corrosion resistanceAnodisationPlasma electrolytic oxidationMicro arc oxidation
The invention discloses a method for preparing a steady-persistence luminous ceramic membrane through aluminum or aluminum alloy surface micro-arc oxidation. The method comprises the following steps that 1, a strontium salt system electrolytic solution is prepared by taking deionized water as a solvent, wherein the electrolytic solution contains strontium salt, ammonium bifluoride, ammonium fluoride, diammonium hydrogen phosphate, monopotassium phosphate and glycerol; and 2, aluminum or an aluminum alloy serves as an anode; a stainless steel plate serves as a cathode; a micro-arc oxidation pulse power supply is adopted; micro-arc oxidation treatment is performed at pulse frequency of 450-700Hz and at a duty ratio of 10-25%; in-situ growth is performed on the surface of aluminum or the aluminum alloy; and the steady-persistence luminous ceramic membrane containing SrAl2O4 is obtained. A growth rate of the ceramic membrane prepared with the method reaches above 3 micrometers / min; the neutral NaCl salt mist corrosion resistance of the ceramic membrane reaches above 600h; and the microhardness of the ceramic membrane can reach above 1000HV.
Owner:CHANGAN UNIV
Manufacturing method for single ZnO micron wire homojunction light emitting diode
InactiveCN103715325AGood rectification characteristicsStrong luminous abilitySemiconductor devicesMicrometerEngineering
The invention discloses a manufacturing method for a single ZnO micron wire homojunction light emitting diode. According to the manufacturing method, a simple CVD method is adopted, parameters such as growth time are controlled, a layer of highly-oriented undoped n-type ZnO micron wires grow on a substrate at first, and then a layer of Sb-doped p-type ZnO micron wires grow on the highly-oriented undoped n-type ZnO micron wires, so that the homojunction of the ZnO micron wires is manufactured; a single micron wire is stripped from the bottom of the sample substrate, and electrodes are manufactured at the two ends of the micron wire, wherein the diameter of the micron wire is 10-100 micrometers, and the length of the micron wire is 1-20mm. The manufacturing process is simple, the cost is low, and device test results show that the device has the good rectification characteristic and the higher light emitting property.
Owner:江苏欣和环境科技有限公司
Fluorescent polynaphthalene as well as preparation method and application thereof
InactiveCN102225993AEasy to operateIdentify linear structural featuresFluorescence/phosphorescenceLuminescent compositionsAlkaneAlkaline earth metal
The invention provides fluorescent polynaphthalene. Amorphous powdery polynaphthalene is obtained by polymerizing a naphthalene monomer with a one-step method based on a lewis acid as a catalytic oxidant in a nitro alkane system. The preparation method has the advantages that operation is simple, preparation cost is low and the like, and is easy to carry out industrial batch production. Polynaphthalene prepared by the method has a specific linear structure characteristic, and the polymerization degree of polynaphthalene is in a range from 3 to 29. Polynaphthalene is a blue fluorescent emitter the luminous capacity of which is far superior to that of the naphthalene monomer, and a Fe<3+> quenching type fluorescent chemical sensor constructed by polynaphthalene can achieve sensing detection of Fe<3+> ions in a concentration rang of 10<-6>-10<-3>mol / L. Polynaphthalene has strong anti-interference capability, and the detection of polynaphthalene is not substantially influenced by alkali metal ions, alkaline earth metal ions and transition metal ions such as Hg<2+>, Co<2+>, Pb<2+> and the like. The polymer can be widely used in the fields of chemistry and chemical engineering, sensing detection, analysis test and the like.
Owner:TONGJI UNIV
Lanthanum titanate red fluorescent material taking Sm<3+> as luminescence center, and preparation method thereof
InactiveCN104745188AStrong luminous abilityHigh purityLuminescent compositionsPhotoluminescenceSpinel
The invention provides a lanthanum titanate red fluorescent material taking Sm<3+> as luminescence center, and a preparation method thereof, relating to the technical field of a luminescence material. The chemical constitution of the lanthanum titanate red fluorescent material is SmxLa2-xTiO5, and the preparation method comprises the following steps: firstly preparing lanthanum titanate gel, doping Sm<3+> ions, then sintering the gel at high temperature and preparing corresponding powder; and according to the luminescence intensity of the fluorescent powder, finally determining the optimal doping amount of the samarium at 3%. According to the lanthanum titanate red fluorescent material, the technology is simple, safe and easy to control, the prepared powder is different from the structures of perovskite and spinel luminescent matrix, and is a novel photoluminescent material matrix, and can provide new expand space for the rare earth photoluminescent material.
Owner:NORTHEASTERN UNIV
Organic compound and organic electroluminescent device comprising same
PendingCN110785401AImprove thermal stabilityImprove carrier transport performanceOrganic chemistrySolid-state devicesOrganic layerOrganic electroluminescence
The present invention relates to a novel compound and an organic electroluminescent device comprising the same. The compound according to the present invention is used for an organic layer, preferablya luminous layer, of an organic electroluminescent device, thereby improving the luminous efficiency, driving voltage, lifetime, etc. of the organic electroluminescent device.
Owner:DOOSAN SOLUS CO LTD
Narrow-particle size distribution PbS quantum dot-doped glass and preparation method thereof
The invention discloses narrow-particle size distribution PbS quantum dot-doped glass. The narrow-particle size distribution PbS quantum dot-doped glass comprises a glass matrix and PbS quantum dots doped into the glass matrix, wherein the glass matrix comprises the following components: 45-55 mol% of SiO2, 20-30 mol% of Na2O, 3-10 mol% of Al2O3, 8-12 mol% of MO, 5-8 mol% of ZnO, 1-6 mol% of ZnS and 0.1-1 mol% of PbO, the sum is 100 mol%; M represents an alkaline earth element. Through the components and the preparation method of the glass provided by the invention, controllable preparation of the PbS quantum dots with the particle size distribution of 4.91-12.37% in the glass matrix can be achieved; the particle sizes of the prepared quantum dots in the glass matrix are adjustable, and adjustable fluorescence of the PbS quantum dot-doped glass in an infrared band can be achieved, so that the narrow-particle size distribution PbS quantum dot-doped glass is a light-emitting material with a very good application prospect.
Owner:WUHAN UNIV OF TECH
Organic compound and organic electroluminescent device using same
PendingCN111406052AImprove heat resistanceStrong luminous abilityOrganic chemistrySolid-state devicesOrganic layerOrganic electroluminescence
The present invention relates to a novel compound and an organic electroluminescent device comprising the same. The compound according to the present invention is employed in an organic layer of an organic electroluminescent device, preferably in a light-emitting layer, an emission auxiliary layer, an electron transport auxiliary layer or an electron transport layer, thus improving the emission efficiency, driving voltage, lifespan, etc. in the organic electroluminescent device.
Owner:SOLUS ADVANCED MATERIALS CO LTD
Organic compound and organic electroluminescent device comprising same
PendingCN111479799AImprove thermal stabilityImprove carrier transport performanceOrganic chemistrySolid-state devicesOrganic layerOrganic electroluminescence
The present invention relates to a novel compound and an organic electroluminescent device comprising the same. A compound according to the present invention is used for an organic layer, preferably alight emitting layer, of an organic electroluminescent device, and thus can improve luminous efficiency, driving voltage, and lifespan of the organic electroluminescent device.
Owner:DOOSAN SOLUS CO LTD
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
Organic compound and organic electroluminescent element comprising same
ActiveCN110662744AImprove thermal stabilityImprove carrier transport performanceOrganic chemistrySolid-state devicesOrganic electroluminescenceOrganic compound
Owner:DOOSAN SOLUS CO LTD
Silicate phosphor and preparation method and application thereof
ActiveCN106281313AImprove emission intensityStrong luminous performanceLuminescent compositionsFluorescent materialsNanotechnology
The invention discloses a silicate phosphor and a preparation method and application thereof. By adjusting formula composition, selecting raw materials and adding rare earth Sm<3+> or Bi3<+> or Gd3<+> into an activator with a rare earth activator Eu2<+> being a main ingredient, the emission strength of a fluorescent material is improved through the energy transmission effect between Sm<3+> or Gd3<+> or Bi3<+> and Eu3<+>; secondly, in the process of generating a precursor, Ag nano-particles are added, fluorescence enhancement is realized according to the Ag nanometer fluorescence enhancement principle, and therefore the prepared phosphor is higher in luminescent property.
Owner:YANCHENG INST OF TECH
Organic compound and organic electroluminescent device comprising same
PendingCN109906225AImprove thermal stabilityImprove carrier transport performanceOrganic chemistrySolid-state devicesOrganic layerElectron transporting layer
Owner:DOOSAN SOLUS CO LTD
Preparation method of high-performance Cr3+ and Nd3+ compositely doped GSGG laser ceramic
The invention discloses a high-performance Cr3+ and Nd3+ compositely doped GSGG laser ceramic and a preparation method of the ceramic. The preparation method comprises the following steps that high-purity Cr3O3, Nd2O3, Gd2O3, Sc2O3 and Ca2O3 powder is taken as the raw materials, the raw materials are compounded according to the stoichiometric ratio of the raw materials, a nitrate solution is formed after uniform mixing, the raw materials are injected into the nitrate solution by one step with ammonium hydroxide as a precipitant, at the same time, full stirring is performed, and a sediment solution is formed by aging; the sediment solution is filtered, washed and dried to obtain a precursor powder body, calcination is performed at the temperature of 800 DEG C to 1,100 DEG C in the air atmosphere, and a Cr3+ and Nd3+: GSGG nano-powder body is obtained; the nano-powder body is subjected to isostatic cool pressing after being dry-pressed, vacuum sintering is performed, a sample is taken out and ground and polished after furnace temperature is cooled to the room temperature, and the Cr3+ and Nd3+: GSGG laser ceramic is obtained. Compared with single crystals of the system, the preparation technology is simple, and the comprehensive performance of the material can be improved.
Owner:UNIV OF SCI & TECH BEIJING
Cross conjugated polymer, method for preparing same and application of cross conjugated polymer
ActiveCN109575242AExcellent optical propertiesStrong luminous abilityPolymer scienceCross-conjugation
The invention belongs to the technical field of high polymer chemical science, and particularly discloses a cross conjugated polymer, a method for preparing the same and application of the cross conjugated polymer. The cross conjugated polymer prepared by the aid of the method is an aromatic cross conjugated polymer or a heteroatom-containing aromatic cross conjugated polymer. The cross conjugatedpolymer, the method and the application have the advantages that the cross conjugated polymer is prepared by means of one-step coupling reaction, ultraviolet absorption can be carried out by the cross conjugated polymer in the ultraviolet and purple light ranges, the cross conjugated polymer is high in luminescence ability, and the luminescence range of the cross conjugated polymer covers light from purple light to yellow light; films can be easily formed from the cross conjugated polymer, and the cross conjugated polymer is good in processing property, is extremely high in luminescence ability even when the cross conjugated polymer is in solid states and accordingly has a broad application prospect in the aspect of optics.
Owner:FUDAN UNIV
Side-chain aryl conjugated organic light-emitting material and preparation method thereof
InactiveCN104073247APlay the role of sealingImproves antioxidant crosslinkingLuminescent compositionsSide chainUltraviolet lights
The invention discloses a side-chain aryl conjugated organic light-emitting material and a preparation method thereof and relates to an organic light-emitting material. The preparation method comprises the steps of synthesizing polycarbosilane; removing polycarbosilane small molecule; and synthesizing side chain aryl conjugated polycarbosilane. The method specifically comprises the steps of reacting poly(dimethylsiloxane) as a raw material in a high pressure reaction kettle to obtain polycarbosilane, then defoaming polycarbosilane small molecules, and then reacting a small amount of aryl (Pn) organic matters and defoamed polycarbosilane to obtain the solid side-chain aryl conjugated polycarbosilane. The antioxidant crosslinking performance, anti-ultraviolet aging performance and thermal stability are improved. Although the reacted system has a conjugated structure, no rigid planar structure and is lack of an electron donating group, the reaction system still shows relatively strong luminescent performance. After a synthesized product is excited by ultraviolet light of which the wavelength is 350nm, the synthesized product has blue-violet light emission at 410nm, the emission purity is high, no miscellaneous peak is generated and good antioxidant crosslinking performance, anti-ultraviolet aging performance and thermal stability are achieved.
Owner:XIAMEN UNIV
Fluorescent gold nano-cluster taking cellulase as template and preparation method and application of fluorescent gold nano-cluster
ActiveCN110804437AStrong luminous abilityGood light stabilityMaterial nanotechnologyMicrobiological testing/measurementUltravioletCellulase
The invention belongs to the technical field of preparation and application of functional nano materials, a gold nano-cluster synthesized by taking cellulase as a template is successfully prepared byadopting a one-pot method, the nano-cluster shows red fluorescence under the irradiation of a 365nm ultraviolet lamp, the maximum excitation wavelength is 560nm, and the maximum emission wavelength is680nm. The invention also provides a method for fluorescence quantitative detection of metal ions, papain and ascorbic acid by utilizing the cellulase gold nano-cluster. The method is simple and convenient to operate, short in time consumption and easy to realize. The cellulase-coated gold nano-cluster prepared by the invention not only enhances the activity of the cellulase, but also can be applied to the aspects of environmental monitoring, food and medicine, agricultural production and the like on the basis of the capability of tracking biomolecules by strong red fluorescence.
Owner:ANHUI NORMAL UNIV
Organic luminous material and preparation method thereof
InactiveCN101962534BSelectiveSimple manufacturing processLuminescent compositionsBottleDimethyl siloxane
Owner:XIAMEN UNIV
Nano microcrystalline glass containing stannic oxide and preparation method of nano microcrystalline glass
The invention provides nano microcrystalline glass containing stannic oxide and a preparation method of the nano microcrystalline glass, and belongs to the technical field of inorganic luminescent materials. The preparation method of the nano microcrystalline glass containing stannic oxide comprises the following steps: porous glass solution doping; primary heat treatment; acid treatment; and secondary heat treatment. The inventor of the invention accidentally discovers that a fact that light-emitting ions outside stannic oxide crystals are removed, only ions in stannic oxide emit light, but the whole stannic oxide emits stronger light, that is, porous glass is sequentially doped with a mixed solution containing tin ions and light-emitting ions, subjected to primary heat treatment and thensubjected to acid treatment, so that the transparency of the glass can be effectively improved, and the light-emitting performance of the high-silica glass is improved. The method breaks through theinertial understanding that personnel in the industry pursue uniform distribution of active ions to improve the overall light-emitting effect of the glass.
Owner:JINAN UNIVERSITY
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