76results about How to "Strong scattering" patented technology

To provide a light emitting device capable of improving both color unevenness and an emission output power.The light emitting device includes a semiconductor light emitting element including a semiconductor layer that emits primary light; and a fluorescent material layer disposed on the light emitting side of the semiconductor light emitting element, that absorbs a part of the primary light and emits secondary light having a wavelength longer than that of the primary light; and emits light of blended color of the primary light and the secondary light of the light emitting element, and further includes a scattering layer in which particles having a mean particle size D that satisfies the inequality: 20 nm<D≦0.4×λ / π are dispersed in a transparent medium.

A method and system for providing a magnetic element is disclosed. The magnetic element include providing a pinned layer, a spacer layer, and a free layer. The method and system also include providing a heat assisted switching layer and a spin scattering layer between the free layer and the heat assisted switching layer. The spin scattering layer is configured to more strongly scatter majority electrons than minority electrons. The heat assisted switching layer is for improving a thermal stability of the free layer when the free layer is not being switched. Moreover, the magnetic element is configured to allow the free layer to be switched due to spin transfer when a write current is passed through the magnetic element.

The invention relates to a magnelium base layer-shaped double-hydroxide ultraviolet barrier material used in anti-aging asphalt and a preparation method thereof. The magnelium base layer-shaped double-hydroxide ultra-violet barrier material has a laminated structure formed by magnelium double-hydroxide plywoods and interlayer carbonate through multi-stage superposition, and molecular composition is as follows: Mg1-xAlx (OH) 2 (CO3) x / 2 . mH2O. The inorganic plywoods of the material can play a role in physically shielding ultraviolet rays, and metal elements on the plywoods and interlayer anions can play a role in chemically absorbing the ultraviolet rays; in addition, by controlling the size and number of layers of the plywoods, multi-stage reflection and refraction occur on interfaces of the plywoods when the ultraviolet rays pass through the multi-stage plywoods, and multi-stage absorption occurs on the plywoods and interlayers, so as to play a role in blocking the ultraviolet rays. Due to the multi-stage multiple chemical absorption and physical shielding effect, the material has good ultraviolet blocking effect, and remarkably improves the ultraviolet aging resistance of asphalt when the material is used for preparing the anti-aging asphalt.

The invention relates to trans-electric-control dimming glass of polymer scattering negativity liquid crystal manufactured on the basis of strain liquid crystal theory. The trans-electric-control dimming glass is composed of two float-glass-process ultra-flat transparent conductive thick-glass interlayer polymer scattering negativity liquid crystal films. Prepolymers of polymer scattering negativity liquid crystal are composed of polymerizable monomers added with photoinitiator, chain transfer agent, flexibilizer and the like. Ultraviolet curing prepolymer and nematic phase liquid crystal are mixed to form liquid crystal glue. During preparation, tensile stress is applied to enable polymer perpendicular surfaces to be stereospecifically polymerized, and negativity liquid crystal molecules are arranged on the perpendicular surfaces. The trans-electric-control dimming glass of polymer scattering negativity liquid crystal has transparent appearance, when voltage is applied, liquid crystal molecules are disorderly arranged in two dimensions along the perpendicular surfaces, and the trans-electric-control dimming glass is turned into scattering state. The trans-electric-control dimming glass of polymer scattering negativity liquid crystal can manufacture products with large area and is applicable to the fields of indoor decoration and the like.

A light emitting device capable of improving both color unevenness and emission output power is provided. The light emitting device includes a semiconductor light emitting element including a semiconductor layer that emits primary light; and a fluorescent material layer disposed on the light emitting side of the semiconductor light emitting element, that absorbs a part of the primary light and emits secondary light having a wavelength longer than that of the primary light; and emits light of blended color of the primary light and the secondary light of the light emitting element, and further includes a scattering layer in which particles having a mean particle size D that satisfies the inequality: 20 nm<D≦0.4×λ / π are dispersed in a transparent medium.

The invention discloses reflective switchable glass based on electroresponse and a preparation method thereof. The switchable glass comprises two opposite light-transmitting substrates, the space between the two light-transmitting substrates is packaged to form an adjusting area, the adjusting area is filled with a liquid crystal mixture, the liquid crystal mixture comprises liquid crystal monomers, a photoinitiator and negative liquid crystals, the liquid crystal monomers can be polymerized to form a polymer network, and the negative liquid crystals are distributed in the polymer network. When no voltage is applied, the negative liquid crystals are arranged perpendicular to the light-transmitting substrates in a single domain, and visible light is transmitted. When voltages are applied, the negative liquid crystals are arranged parallel to the light-transmitting substrates in many domains, light scattering is enhanced, and the switchable glass is switched into a light scattering state from a light transmitting state. A power-on state is switched into a power-off state, the reflective switchable glass drives the negative liquid crystals to turn by depending on the restoration function of the polymer network, and the response speed is higher than that of traditional switchable glass; the polymer network is formed in the adjusting area, so that the transmissivity of the switchable glass is lower.

The invention relates to the field of technologies for preparing resin compositions, in particular to an infrared-permeable transparent flame-retardant composite material and a method for preparing the same. The infrared-permeable transparent flame-retardant composite material comprises, by weight, 70-83 parts of MABS (methyl methacrylate-acrylonitrile-butadiene-styrene) resin, 10-20 parts of bromo-triazine, 1-5 parts of low-polymer aryl phosphate ester, 3-8 parts of toughening agents, 0.1-0.5 part of laser engraving auxiliaries, 0.2-0.5 part of antioxidants, 0.9-2 parts of polyamide wax and 0-2.0 parts of color powder. The infrared-permeable transparent flame-retardant composite material and the method have the advantages that environmental protection requirements can be met by the infrared-permeable transparent flame-retardant composite material which is an ABS (acrylonitrile-butadiene-styrene) composite material, the infrared-permeable transparent flame-retardant composite material has an excellent laser engraving function, is high in transparency and flame-retardant property and excellent in injection molding machining property, and excellent infrared permeation effects can be realized; the infrared-permeable transparent flame-retardant composite material can be widely applied to the field of remote-control electric appliances, and universal infrared permeation polycarbonate materials on markets can be replaced.

An object of the present invention is to provide white colored fine particles with high white reflectance and not easily precipitating in a dispersion medium compared to inorganic white pigments, a method of producing the fine particles, an image display medium and an image display apparatus having a high whiteness like a paper and an excellent display memorability using the fine particles. Therefore, the fine particles contain a polymer of a compound expressed by the following formula (1).In the above formula (1), R represents a hydrogen atom, a halogen atom, an alkyl group or an alkenyl group, “m” represents an integer of 1 to 10, and at least one of R represents the alkenyl group.

The invention provides a coating composition. The coating composition contains a thermoplastic acrylic acid resin, a filling material and one or more solvent, wherein the filling material contains titanium dioxide and polyamide wax micro-powder (PA wax powder). The invention also provides application of the coating composition in lampshade coatings. The coating composition can be utilized for preparation of lampshade coatings, has high transmittance and scattering effects, can effectively reduce radiation intensity of a unit area, is suitable for lampshades prepared from various glass and plastic materials such as PC, ABS, PMMA and the like, and realizes high lampshade haze. The coating composition has uniform coating effects and very high transmittance and haze, wherein the transmittance and the haze can both reach 90%, has small coating thickness, saves raw materials, can produce a strong adhesive force on glass and plastic, has good weatherability, can be cured at an environmental temperature, and does not yellow and fall off.

This is a space-distributed function testing method for the biological organism refractive index. This method use the photon theory calculated method to calculate the biological organism ribbon chink structure, by the treatment of photon crystal visual angle to treat the biological organism. To adjust the refractive index of biological organism to approach the experiment surveying result of the biological organism ribbon chink structure, then to avoid away the muddy and high scattering characteristic of the biological organism to influence the survey precision, to raise the space distributed index of biological organism refractive index.

The invention relates to a preparation method for a scattering layer of a dye-sensitized solar battery. The preparation method comprises the following steps of: (1) mixing titanium tetrachloride and a salt solution, and then conducting the hydro-thermal reaction on the titanium tetrachloride and the salt solution in a reaction kettle, thus obtaining titanium oxide scattering microspheres; (2) transferring the titanium oxide microspheres into a mortar, adding a pore-forming agent and a solvent in the mortar in sequence, and grinding the mixture for 0.5-3h to obtain uniform slurry; and (3) coating a layer of scattering layer slurry on a small particle base layer of the dye-sensitized solar battery by adopting a screen printing method or a blade coating method, sintering at the temperature of 400 DEG C-500 DEG C, and finally obtaining the scattering layer of the dye-sensitized solar battery. According to the method, the provided process is simple and convenient, the used raw materials are wide in source, a surface active agent does not need to be used, and the cost is low; and due to the provided large-particle scattering layer, the light absorbing capability of the photoanode of the battery is improved, simultaneously, the dye absorbing amount is increased, and the scattering layer has an industrial application prospect.

A Raman spectrograph of light tweezers with high sensitivity consists of pumping light path, detecting light path , lighting path of visible light and viewing light path . It features that laser emitted from Stoket laser is unified with pumping light through beam unifier and unified beam reacts on sample to be tested for generating coherent counter - Stoket Raman scatter.

The invention provides a substratum, a display panel and a display device. The substratum comprises a substratum body and scattering particles distributed in the substratum body, wherein the red lightrefractive index of the scattering particles is nR, and the blue light refractive index of the scattering particles is nB; and the red light refractive index of the substratum body is NR, and the blue light refractive index of the substratum is NB; and NR, nB, NR, NB meets the relation of |nR-NR|> |NB-nB|. That is to say, for the whole substratum, the refractive index difference of the substratumto red light is greater than that of the substratum to blue light. Due to the large difference of the red light refractive index, the scattering ability to the red light is high, and more light enters a large viewing angle area; and the difference of the blue light refractive index is small, so the scattering ability is low, and less light enters the large viewing angle area. Thus, the red lightbrightness of the large viewing angle area can be compensated, when the substratum is applied to the display side of the display panel, the situation that a white screen of the display panel is bluishcan be reduced, so that the display quality of the screen under the large viewing angle is improved, and the user experience is improved.

The invention relates to an arranging method of nanometer magnesium oxide anti-ultraviolet hydrophobic cellulose fabrics, which comprises the following steps: (1) soaking cellulose fabrics in a magnesium acetate aqueous solution for a certain time, baking at 100-150 DEG C for 10-90 minutes; (2) mixing long-chain aliphatic acid, water and alcohol to obtain a water-repellent agent; or mixing long-chain aliphatic acid salts which are water-soluble at room temperature, organic acid, water and alcohol to obtain a water-repellent agent; (3) performing water-repellent arrangement of the fabrics obtained in step (1) by using the water-repellent agent obtained in step (2), finally predrying and baking the arranged fabrics to obtain the product. The arranging method of the invention is simple, easyto be industrialized, and has low raw material cost; fabrics treated by the invention have excellent hydrophobicity and excellent anti-ultraviolet performance, and has wide application prospects.

The invention relates to novel high-property conductive glass, in particular to conductive glass for a thin film solar battery and a preparation method of the conductive glass. According to the conductive glass provided by the invention, a metal layer (3) is clamped between a metallic oxide conductive layer (2) and a second metallic oxide conductive layer (4); and the metallic oxide conductive layer (2), the metal layer (3) and the second metallic oxide conductive layer (4) are sequentially arranged on one side surface of a glass base material (1). According to the conductive glass, the metallic oxide conductive layer is prepared on the glass base material through methods such as LPCVD (low pressure chemical vapor deposition), a PECVD (plasma enhanced chemical vapor deposition), SPUTFER (magnetron sputtering) or SPRAY (hot spraying) method; the metal layer is prepared by a magnetron sputtering or thermal evaporation method; and the second metallic oxide conductive layer is prepared by a chemical vapor deposition method. The conductive glass provided by the invention has the advantages of good light transmission, strong conduction, high scattering degree, good film layer structure stability and high cost performance. Furthermore, according to the method for preparing the conductive glass provided by the invention, the preparation cost is low.

The invention discloses a process method for producing a rare earth eutectic phosphor by an edge-defined film-fed crystal growth method, and relates to preparation of eutectic phosphors. The method comprises the processes of raw material pretreatment, lower thermal field assembly, upper thermal field assembly, vacuumizing and inflation heating, seeding inoculation, shouldering, equal-diameter growth, pulling-off cooling, exhausting / crystal taking-out and the like. The rare earth eutectic phosphor can be prepared by the process method, and compared with fluorescent powder in the prior art, therare earth eutectic phosphor has the advantages that the performance is improved in multiple aspects and the application range is wider.

The invention discloses a Bi / Ti3C2 nanosheet photocatalyst for catalytic reduction of NOx, and a preparation method thereof, and belongs to the technical field of photocatalysis. The Bi / Ti3C2 photocatalyst is formed by attaching Bi particles to a Ti3C2 nanosheet structure. The preparation method comprises the following steps: 1) mixing a hydrofluoric acid solution and a Ti3AlC2 powder, and processing the obtained mixture to prepare an intermediate; 2) adding the intermediate to a dimethyl sulfoxide solvent, processing the obtained mixture to obtain a Ti3C2 powder; and 3) mixing the Ti3C2 powder and a Bi(NO3)3.5H2O powder in ionic water, and carrying out subsequent treatment to obtain the Bi / Ti3C2 sample. The Bi / Ti3C2 photocatalyst has a good catalytic effect, has an excellent removal effect on NOx in air, and also can also be applied to NOx-containing exhaust gas treatment devices.

The invention discloses a PVA derivative radiation refrigeration film material as well as a preparation method and application thereof. The preparation method comprises the following steps: synthesizing a PVA derivative modified by alkyl chain side chains with different lengths from polyvinyl alcohol and fatty aldehyde, then dissolving the PVA derivative into a good solvent, and forming a PVA-Cn membrane through a phase separation method, namely the PVA derivative radiation refrigeration membrane material. The PVA derivative radiation refrigeration film material prepared by the invention has rich random micron-pore and nano-pore structures on the surface and inside, has high solar reflectivity and thermal emissivity, and has a good outdoor cooling effect, so that the PVA derivative radiation refrigeration film material can be used as a heat-insulating, solar-reflecting or infrared-transmitting material, and the material is used for radiation refrigeration, building energy conservation, food preservation, wearable products, mobile phones, automobiles, electronics and electric equipment.

The invention provides a composite material with an interface enhanced and application thereof. The composite material comprises a substrate and a thin film layer; the surface of the substrate is provided with micro-nano-scale sunken structures, and the surface, which is provided with the sunken structures, of the substrate is attached to the thin film layer. According to the composite material, the micro-nano-scale sunken structures are machined on the substrate, so that the total contact area between the thin film layer and the substrate is increased, the bonding strength between the thin film layer and the substrate is improved, so that the ability of the composite material to resist generation of cracks during bending is stronger; and through the interface structure that the thin filmlayer and the substrate are mutually crossed, the abrasion resistance of the material is improved, moreover, the residual stress in the material can be reduced or even eliminated, and the service period of the material can be prolonged. The composite material can be used for the fields such as substrates of blue-light LED devices, flexible circuit boards, OLED or QLED packaging, windshield glass,airframes or automobile bodies.

The present invention relates to a preparation method for SnTe thermoelectric materials with high output power density and energy conversion efficiency, and relates to the preparation method for SnTethermoelectric material. The problem is solved that the output power density and energy conversion efficiency of the current thermoelectric materials cannot be improved at the same time. The preparation method comprises the steps that: 1, according to the stoichiometric ratio of (SnTe)2.94(In2Te3)0.02-(Cu2Te)3x, the Sn powder, the Te powder, the In powder and the Cu powder are weighed; the mixtureis put in a high-temperature muffle furnace to perform heat preservation at a high temperature, then cooling and heat preservation and finally furnace cooling to obtain ingot casting; and 3, the ingot casting is grinded and put in a graphite mold to perform sintering at a certain temperature and pressure to obtain In-Cu co-doped SnTe thermoelectric materials. The preparation method for SnTe thermoelectric materials with high output power density and energy conversion efficiency is suitable for preparation of the SnTe thermoelectric materials with high output power density and energy conversion efficiency.

The invention relates to a high breakdown voltage ZnO: X thin film and a preparation method and application thereof and belongs to the technical field of semiconductor integrated devices and voltage-sensitive devices. According to the preparation method for the high breakdown voltage ZnO: X thin film, the ZnO: X thin film is deposited on a substrate by adopting a radio frequency plasma activationsource auxiliary codeposition method. The preparation method for the high breakdown voltage ZnO: X thin film comprises the specificsteps that high-purity oxygen is introduced into a radio frequency plasma activation resource, theoxygen flow is1.5-2.0 standard-state cubic centimeter per minute (SCCM), and working power of the radio frequency plasma activation resource is250W-450W; and metal Zn andmetal X are adopted as source materials, and codeposition is conducted, the substrate temperature isbetween the room temperature and 800 DEG C, the vacuum degree is(2-3.5) x 10<-3> Pa, and the deposition time isbetween 10 min and 120 min. The light transmittance of the thin film prepared with the above-mentioned method within a visible light range is between 80% and 100%, the electrical resistivity is within the range between 10<6> omega m and 10<8> omega m, and the breakdown voltage is within the range between 7000 v / mm and 8000 V / mm.

A molybdenum disulfide flexible ion sensor comprises a boron nitride layer (2-1), a molybdenum disulfide layer and a boron nitride layer (2-3) which are connected together from top to bottom, a metalelectrode and a flexible substrate, wherein the molybdenum disulfide layer is located under the boron nitride layer (2-1) and located above the boron nitride layer (2-3); a composite beam structure isformed by the molybdenum disulfide layer, the boron nitride layer (2-1) and the boron nitride layer (2-3); two ends of a beam are respectively in contact with the metal electrode, and the middle partof the beam is suspended in midair; the flexible substrate is located under the suspended part of the composite beam structure. The boron nitride layer (2-1) is used as a protective layer, so that the upper surface and the lower surface of the molybdenum disulfide layer can be prevented from being in contact with air and water vapor in the air, and the molybdenum disulfide layer can be preventedfrom degenerating in the air; a suspended structure is capable of preventing the molybdenum disulfide layer from being in direct contact with the flexible substrate, so that scattering influence of the flexible substrate to the molybdenum disulfide layer can be avoided; the structure is capable of enabling a molybdenum disulfide ion sensor to obtain better lower detection limit, increasing long-term stability and reducing the influence of deformation of the flexible substrate to a device.

The invention provides a metal-chalcogen semiconductor material as well as a preparation method and application thereof. The metal-chalcogen semiconductor material comprises a metal-chalcogen semiconductor crystal, wherein at least one of the three-dimension scales of the metal-chalcogen semiconductor crystal is 1-100 nanometers, the metal-chalcogen semiconductor crystal is a nano sheet or a nano cube, the nano sheet has an atomic-scale thickness, and an exposed crystal face of the nano cube is a {100} crystal face. The metal-chalcogen semiconductor material belongs to nano semiconductor crystal materials, is uniform in grain size, controllable in shape and size, and good in performance, and the preparation method of the metal-chalcogen semiconductor material needs a small amount of raw material species, is mild in reaction condition, high in yield, and suitable for industrial application.

The invention discloses a vanadium dioxide (VO2) intelligent thermal control device with a longhorn beetle-imitating multistage structure and a preparation method thereof, and belongs to the technicalfield of intelligent thermal control coating layers. The problems that an existing intelligent thermal control device based on VO2 is small in emissivity change and high in solar absorption ratio aresolved. The VO2 intelligent thermal control device with the longhorn beetle-imitating multistage structure is composed of a semiconductor substrate layer, an infrared high-reflection metal layer, anHfO2 dielectric layer, a VO2 layer and a protective layer in sequence from bottom to top. The preparation method comprises the steps: 1, preparing the infrared high-reflection metal layer; 2, preparing a dielectric film; 3, preparing a VO2 film; 4, processing a microstructure; and 5, depositing a protective layer. The invention discloses the vanadium dioxide intelligent thermal control device withthe longhorn beetle-imitating multistage structure and the preparation thereof.

The invention discloses a preparation method for Ag nano-particles CoSb3 matrix thermoelectric material. In the invention, ethanol solution of AgNO3 is dropped into CoSb3 pre-sintering powder compacted by a chemical soaking method. The surface of powder particles on thermoelectric material is coated with AgNO3 solution membrane by utilizing the soaking effect, then dried quickly to promote the shrinkage, precipitate nanometer particles and dispersed on the surface of CoSb3 powder particles, and finally fast sintered by the spark plasma sintering technology, the decomposition of AgNO3 is promoted at high temperature, and the thermoelectric composite material with Ag nano-particles which are dispersed homogeneously on the grain boundary of CoSb3 matrix is obtained. The method overcomes the disadvantage that nano-particles are not easy to disperse by direct adding in a traditional way. Ag has high electrical conductivity, therefore, the adding of Ag nano-particles can lower the thermal conductivity based on no reduction of electrical conductivity, and improve thermoelectric figure of merit ZT.

The invention relates to a radiation refrigeration coating containing a high refractive index difference particle combination and a preparation method and application thereof, and belongs to the technical field of radiation refrigeration materials. In order to improve the refrigeration performance of a radiation refrigeration material, the invention provides a radiation refrigeration coating containing a high refractive index difference particle combination, which comprises the following components: reflective functional particles, emission functional particles, a binder, a diluent, a dispersant, a coalescing agent, a defoaming agent, a thickening agent and a leveling agent, wherein the reflective functional particles are composed of high-refractive-index functional particles and low-refractive-index functional particles according to a certain mass ratio. Reflection type functional particles with different optical characteristics are emphatically matched, a plurality of interfaces with dielectric contrast are introduced to enhance solar reflection, the larger the contrast is, the more beneficial is that particles with higher refractive index scatter solar energy, the reflectivity of the prepared radiation refrigeration coating to the solar wave band can reach 98.1%, and the radiation refrigeration coating has good radiation refrigeration performance. And the radiation refrigeration effect can be obviously improved.

The invention discloses a magnetic response liquid crystal intelligent window. The window comprises two base plates which are oppositely arranged, wherein each substrate comprises a light-transmittingsubstrate and an orientation layer; the alignment layers of the two substrates are oppositely arranged, the space between the two substrates is filled with a liquid crystal mixture, the liquid crystal mixture comprises magnetic particles and main body liquid crystals, a patterned electrode is arranged between the light-transmitting substrate and the alignment layer of at least one substrate, andthe patterned electrode can generate a magnetic field when being electrified. Compared with a traditional electrically-driven intelligent window, the magnetic response intelligent window can be used under both direct current and alternating current; in addition, due to the fact that the mode that a power source is connected between the upper conducting layer and the lower conducting layer is not adopted, the danger of breakdown of the conducting layers is avoided, high voltage does not need to be connected to the intelligent window, good economy and safety are achieved, application scenes arericher, and good application prospects are achieved in the fields of vehicle window glass, household glass windows, glass curtain walls and the like.