195results about How to "Enhance light absorption" patented technology

The surface of a material is textured and by exposing the surface to pulses from an ultrafast laser. The laser treatment causes pillars to form on the treated surface. These pillars provide for greater light absorption. Texturing and crystallization can be carried out as a single step process. The crystallization of the material provides for higher electric conductivity and changes in optical and electronic properties of the material. The method may be performed in vacuum or a gaseous environment. The gaseous environment may aid in texturing and / or modifying physical and chemical properties of the surfaces. This method may be used on various material surfaces, such as semiconductors, metals and their alloys, ceramics, polymers, glasses, composites, as well as crystalline, nanocrystalline, polycrystalline, microcrystalline, and amorphous phases.

The surface of a material is textured and by exposing the surface to pulses from an ultrafast laser. The laser treatment causes pillars to form on the treated surface. These pillars provide for greater light absorption. Texturing and crystallization can be carried out as a single step process. The crystallization of the material provides for higher electric conductivity and changes in optical and electronic properties of the material. The method may be performed in vacuum or a gaseous environment. The gaseous environment may aid in texturing and / or modifying physical and chemical properties of the surfaces. This method may be used on various material surfaces, such as semiconductors, metals and their alloys, ceramics, polymers, glasses, composites, as well as crystalline, nanocrystalline, polycrystalline, microcrystalline, and amorphous phases.

The invention relates to a conjugated polymer based on condensed ring thiophene and diazosulfide, a preparation method and an application of the conjugated polymer as an active layer material in organic optoelectronic devices, such as polymer solar energy cells, organic field effect transistors and organic light emitting diodes. The conjugated polymer based on condensed ring thiophene and diazosulfide has an excellent sunlight capture ability and a hole transmission ability, and the conjugated polymer solution has good processability, thermostability, charge transmission performance and lightadsorption and is an ideal organic semiconducting material in the organic electronic devices, such as solar energy cells, field effect transistors and light emitting diodes. A general formula of the conjugated polymer is shown as above.

Nanocrystals having an indium-based core and methods for making them and using them to construct core-shell nanocrystals are described. These core-shell nanocrystals are highly stable and provide higher quantum yields than known nanocrystals of similar composition, and they provide special advantages for certain applications because of their small size.

The invention provides a composite shape-stabilized phase change material with light absorption and conductive properties and a preparation method thereof. The material consists of 5-15 percent of porous carbon material and 85-95 percent of organic phase change material distributed in the porous carbon material, wherein the organic phase change material is distributed in the porous carbon material. The method comprises the following steps of: preparing a carbon material with the three-dimensional communicating porous property; heating and fusing the organic phase change material and casting the organic phase change material on the porous carbon material; shocking the mixture at the temperature of 100-120 DEG C for a certain time so as to uniformly distribute the organic phase change material in the porous carbon material; and grinding the mixture at room temperature, and pressing and forming the material in a die. The composite shape-stabilized phase change material has high heat conduction, light absorption and conductivity; the heat transfer efficiency of the phase change material can be obviously improved; and meanwhile, the solar energy and electric energy can be converted into heat energy at high efficiency and are stored in the phase change material, and the material is a photoelectric composite shape-stabilized phase change material.

The embodiment of the invention provides a method and a device for sealing with frit and frit. The light absorption of the frit is improved, the reject ratio of an OLED substrate is reduced, and the quality of the OLED substrate is improved. The frit comprises sealing glass and filler, wherein the filler comprises an inorganic quantum dot material. The embodiment of the invention relates to the field of sealing technology.

A curable organosilicate composition that is employed to form one or more layers in the fabrication of electronic devices comprising: (a) an alkoxy or acyloxy silane having at least one group containing ethylenic unsaturation which group is bonded to the silicon atom (b) an alkoxy oracyloxy silane having at least one group containing an aromatic ring which group is bonded to the silicon atom, (c) a latent acid catalyst, and (d) optionally an alkoxy or acyloxy silane having at least one C1-C6 alkyl group bonded to the silicon atom.

There is disclosed a photoelectric conversion device comprising a substrate 1 serving as a lower electrode; first conductivity-type crystalline semiconductor particles 3 deposited on the substrate; second conductivity-type semiconductor layers 4 formed on the crystalline semiconductor particles 3; an insulator layer 2 formed among the crystalline semiconductor particles; and an upper electrode layer 5 formed on the second conductivity-type semiconductor layers 4, wherein the second conductivity-type semiconductor layers 4 each have a smaller thickness at or below an equator of each of the crystalline semiconductor particles than at a zenith region thereof, and the second conductivity-type semiconductor layers 4 include an impurity element with a concentration gradient decreasing with proximity to the crystalline semiconductor particles.

The invention discloses a paper dye sensitization solar battery photo-anode and a preparation method thereof, which belong to the technical field of solar electrode materials and a preparation method thereof. The photo-anode has three layers of structures, wherein a first layer is nanometer paper, namely metallic oxide nanometer paper or sodium graphene nanometer paper; a second layer is a wide-band gap semiconductor porous membrane formed on the surface of the nanometer paper; and a third layer is a layer of transparent conducting membrane formed on the surface of the semiconductor porous membrane. A nanometer paper substrate made of nanometer wires or nanometer fibers is non-transparent, and can scatter sunlight fully; and a conducting layer is transparent, so the obtained electrode can absorb and utilize visible light fully. The paper dye sensitization solar battery photo-anode has reasonable structural design, and high light-absorbing performance, is low in cost, is easy and convenient to prepare, can be sintered at high temperature and improve light absorptivity, is suitable for preparing flexible dye sensitization solar batteries, and has the obvious significance to the discovery of reducing battery cost.

The invention discloses a silk texture anti-skid matt glaze, a preparation method and a ceramic tile using the silk texture anti-skid matt glaze. In percentage by weight, a raw material of the silk texture anti-skid matt glaze consists of 60 to 65% of raw glaze powder and 35 to 40% of frit powder; in percentage by weight, a mineral composition of the raw material comprises: 15 to 20% of potassiumfeldspar, 12 to 16% of burnt talc, 8 to 12% of kaolin, 10 to 15% of barium carbonate, 2 to 5% of zinc oxide, 2 to 5% of calcined alumina and 35 to 40% of frit powder. The surface texture of the silk texture anti-skid matt glaze is smooth just like silk and a decorative effect of a pattern decorative layer is not influenced; glossiness is smaller than 10 degrees, and both a dry static friction coefficient and a wet static friction coefficient are greater than or equal to 0.55; wear resistance reaches the fourth level and over in the standard.

The invention discloses A-D-A type conjugated molecules based on a substituted indenothiophene condensed ring unit, and a preparation method and an application of the molecules as an active layer material in organic photovoltaic device. The conjugated molecules have the structure represented by the following general formula defined in the specification. Different electrical absorption units alkoxy, fluorine atoms and the like are introduced to an indenothiophene condensed ring unit, the electron withdrawing characteristic of the fluorine atoms and the alkoxy is utilized, the HOMO energy level of the material is adjusted, then the open-circuit voltage of a photovoltaic battery is adjusted, the spectral absorption range is improved, and thus the photoelectric conversion efficiency of the device is improved.

Light to current converter devices, such as solar cells, are disclosed. The devices may include via holes extending through the cell substrate and may include through-hole electrodes within the via holes. The through-hole electrodes may be made from one or more materials and may be hollow, partially hollow, or fully filled. Front and rear electrodes may also be formed on the device and can be made of the same or different materials as the through-hole electrode. The devices may include emitters located only on the top surface of the cell, located on the top surface and symmetrically or asymmetrically along a portion of the inner surface of the via holes, or located on the top surface and full inner surface of the via holes. Processes for making light to current converter devices are also disclosed.

The invention belongs to the preparing field of TiO2 nano-crystal thin film photoelectrode of dye sensitization solar cell, especially relates to a preparing method of non-metal doped dye sensitization TiO2 nano-crystal thin film photoelectrode which is prepared by colloids containing non-metal doped large granule TiO2 nano-crystal and non-metal doped TiO2 nano-crystal granule. The photoelectrode prepared by the invention is prepared by rotary coating the non-metal doped TiO2 colloidal sols and non-metal doped TiO2 power body slurry in order on a conductive substrate; after naturally drying, performing heat-treatment to obtain a nano-crystal thin film photoelectrode with porous structure. On one hand, the non-metal doped TiO2 nano-crystal granule changes the performance of the semiconductor, and is used as almsgiver to provide more carriers to improve the electric conductivity; on the other hand, the non-metal doped TiO2 nano-crystal granule changes the position of TiO2 energy band to improve the photovoltage and the photo absorption efficiencies. The preparing method of the invention is simple and is easy to operate, is suitable for the industrial production preparation of the dye sensitization TiO2 nano-crystal thin film photoelectrode, and also is suitable for the fields of photochemical catalysis electrode and self-cleaning glass and so on.

The present invention is fluorescent powder for white LED and its preparation process, and the fluorescent powder has torispherical structure and high light converting efficiency. The fluorescent powder has the composition of (Y1-xGdx)3-z(Al1-yGay)5O12:Cez3+, with the activator including RE activator Ce3+ and other activator. The preparation process includes preparing torispherical precursor of granularity of 1-2 micron, adding flux into the precursor, synthesis in H2 / N2, acid prickling, alkali washing, water washing, crushing, sieving, detecting and packing. The fluorescent powder has high light emitting efficiency and light flux up to 80 lm / w.

The invention relates to polyacrylonitrile / copper sulphide photo-thermal nanofiber fabric, and a production method and an application thereof. Polyacrylonitrile PAN nanofibers are used as a substrate, and copper sulphide CuS nano-particles are distributed on the surfaces of the polyacrylonitrile PAN nanofibers. The production method has the steps of soaking PAN nanofiber cloth including copper salts into sulfur source solution for sulfidizing, and drying. According to the fabric and the production method thereof provided by the invention, photo-thermal material is extended to the solid fibers from the solution, so that utilization limitation of the photo-thermal material is broken, and the fabric is expected to be widely applied to the fields of new generation solar heating equipment and new generation solar warm clothes.

A novel black matrix, a method for preparing the same, and a flat display device and an electromagnetic interference filter to which the black matrix is applied. The black matrix is prepared by exposing a photoactive compound to form a latent pattern of nuclei for crystal growth and treating the latent pattern of nuclei for crystal growth with a metal salt solution to give a metal particle-deposited pattern; forming an electroless Ni-plated layer on the metal particle-deposited pattern; and forming an electroless Cu-plated layer on the electroless Ni-plated layer. Exhibiting improved black tone, which is achieved only by a selective multilayer plating process, without using expensive vacuum sputtering apparatus or a photolithographic process, the black matrix can be applied to various flat display devices. In addition, due to improved electric conductivity, the black matrix can be used in an electromagnetic interference filter, without employing an additional front surface blackening process.

The invention discloses a light-Fenton catalytic oxidation coal chemical industry wastewater deep treatment system and a coal chemical industry wastewater treatment method thereof, relates to a coal chemical industry wastewater deep treatment system and the coal chemical industry wastewater treatment method thereof, and aims to solve the problems of high cost, low efficiency, serious sludge accumulation and poor treatment effect in the existing coal chemical industry wastewater deep treating process. The system disclosed by the invention consists of a water inlet system, a chemical inlet system, a photoreaction treatment system and a cyclic water system. Sunshine is adopted as a light source of the system; under the catalytic reaction of TiO2, except that part of pollutants can be directly decomposed, a hydroxyl complex of iron has high light absorption property, and can absorb light and perform photolysis to generate more .OH; the reaction speed is high. Illumination can also enhance the reduction of Fe<3+> and improve the concentration of Fe<2+>, and is beneficial to the catalytic decomposition of H2O2, so that the removal effect of pollutants is improved, the removal rate of COD and ammonia nitrogen reaches over 90 percent, and chrominance is also removed greatly.

The invention discloses a variable-spacing anti-light curtain and a preparation method thereof. The variable-spacing anti-light curtain comprises a base material layer and a prismatic structure layerarranged on the outer surface of the base material layer, and is characterized in that a plurality of prisms which are parallel to one another in the horizontal direction and have triangular sectionsare arranged on the prismatic structure layer; the distances between the prisms are gradually increased from bottom to top; the upper side surfaces of the prisms are light absorption surfaces; and thelower side surfaces of the prisms are reflective surfaces and are coated with a reflective coating respectively. The distance of the prismatic structure layer in the longitudinal direction of the curtain is adjusted, the distance is gradually increased from bottom to top, the prisms below can be effectively prevented from shielding the prisms adjacent to the prisms above, and the reflecting surfaces of the prisms can completely play a role. According to the structural design, raw materials of the prismatic structure layer are saved, the manufacturing cost is reduced, on the premise that the same reflection area is maintained, the light absorption area is increased, the absorption rate of ambient light is additionally increased, interference of the ambient light is reduced, and the contrast ratio is increased.

The invention discloses a double-stimulus-responding porous graphene driver which comprises a flexible polymer film. A graphene film is arranged on one side face of the polymer film and is of a multilayer structure, and micropores are formed between adjacent graphene layers; the driver is in bending deformation when receiving illumination or voltage stimulation. The invention further discloses a preparation method and application of the driver. The driver has the advantages that the driver can acquire double-stimulus response, so that environment adaptability of the driver is improved; bendingdeformation of the driver is caused jointly by expanding deformation of polymer when being heated and contracting deformation of graphene micropores, so that good mechanical performance is demonstrated, application range of the driver is widened, and using effect of the driver is improved. The driver can be used in the field of imitated-worm robots, manipulators, artificial joints and intelligentdrive.

The invention discloses a porous photo-thermal film with salt precipitation resistance and preparation and application thereof. Seawater-corrosion-resistant metal Ti nets with different pore diametersare used as substrate materials to obtain TiO2 / Ti porous films with different pore diameters through hydrothermal synthesis reaction and control of reaction time; then TiNx with a plasma resonance effect is loaded on the surface of the Ti nets through a desalination reaction, the light absorption rate is increased, then a hydrophobic TiNx / Ti porous photo-thermal film is obtained through hydrophobic modification, and salt is prevented from being separated out in the seawater desalination process. The nitriding measure is adopted for the TiO2 / Ti porous film, although the TiNx / Ti porous film obtained after nitriding has good light absorption performance, the hydrophobicity is poor, the TiNx / Ti porous film is hydrophobically modified, the stability is improved, and salt precipitation is simulated.

The invention discloses a preparation method of an ultra-black coating with a nano-pore structure. The preparation method comprises the following steps of: cleaning and activating a metal matrix material, plating the cleaned and activated metal matrix material in a chemical plating solution to deposit a nickel phosphorus carbon alloy coating on the metal matrix material, wherein the chemical plating solution comprises nickel sulfate, sodium hypophosphite, a buffer agent, a complexing agent and a carbon black, and the particle size of the carbon black is 20-60mm, and chemically etching the nickel phosphorus carbon alloy coating on the surface of the metal matrix material using an etching acid solution. A plurality of nanometer conical pores different in sizes are uniformly distributed in the surface of the ultra-black coating prepared by the preparation method, nano-pores which are smaller in pore diameters are filled in the inner surfaces of the nanometer conical pores and in the plane areas between the adjacent conical pores, the light reflectivity of the ultra-black coating within a 400-2000 light wavelength range is less than 0.12%, and the ultra-black coating has light absorption performance better than that of the light absorbing coating obtained by carrying out conventional chemical etching on a Ni-P alloy.

The invention relates to a class of star-shaped three-dimensional conjugated molecules based on triphenylamine-benzothiadiazole and a preparation method thereof, and the application of the molecules as active layer materials in organic semiconductor devices such as organic solar cells (OPV). The star-shaped three-dimensional conjugated molecule based on triphenylamine-benzothiadiazole of the present invention has good solar light harvesting ability and hole transport ability, and has good solution processability and thermal stability, and is useful for making organic solar energy Ideal material for battery devices. Its general structure is as follows:

The invention discloses a preparation method of a ceramic. The preparation method of the ceramic comprises the following steps: mixing a ceramic substrate, a sintering aid and a monomer carbon to obtain a mixture; shaping, deguming and sintering, wherein based on the total weight of the mixture, the monomer carbon accounts for 0.001-1wt%. Furthermore, the invention provides the ceramic prepared by the method, a method for surface selective metalization of the ceramic and a prepared ceramic composite material. The carbon element in the ceramic material provided by the invention can improve the light absorption of the general white ceramic material on the energy beam of a low-power laser device, so that the ceramic material can be directly graphically etched and activated by the low-power laser, then the material is coated in a chemical plating solution, and the coating layer metal is firmly combined with the ceramic material; and the method is simple and easy to control.

The invention discloses a conjugated polymer containing a chlorine-substituted conjugated side chain and a preparation method thereof and application of the conjugated polymer as an active layer electron donor material or an electron acceptor material in an organic solar battery. The conjugated polymer containing the chlorine-substituted conjugated side chain can be processed by a solution method,can realize effective adjustment of polymer energy level, has good solar light capturing ability and thermal stability, and is an ideal material for electron donors or electron acceptors of an organic solar battery. The conjugated polymer is shown in the following general structure.

The present invention is directed to adjustable chromophore compounds and materials (e.g., ophthalmic lens materials) incorporating those compounds. The adjustable chromophore compounds include a chemical moiety that structurally changes upon exposure to predetermined electromagnetic radiation (e.g., two photon radiation) as well as lens materials, particularly intraocular lens materials that incorporate those compounds.

The invention provides an LED lamp bead preparation method which comprises the following steps: S10, LED chips are regularly arranged on the surface of a substrate, and the light-emitting side surfaces of the LED chips face upwards; S20, silica gel is dispensed on the surfaces of the light-emitting sides of the LED chips; S30, fluorescent films cut into a preset size are sequentially attached to the surfaces of the LED chips to cover the light-emitting surfaces of the LED chips, and triangle-like silica gel layers are formed on the connecting interfaces of the fluorescent films and the LED chips; S40, high-reflection white glue fills the gaps between the LED chips until the high-reflection white glue is flush with the fluorescent films in height; and S50, cutting is carried out according to the cutting channels between the LED chips to obtain single LED lamp beads. Fluorescent powder covers the surfaces of the light-emitting sides of the LED chips in a film pasting mode, the light-emitting uniformity of LED lamp beads is improved, and the prepared LED lamp beads are uniform in light spot. The triangle-like silica gel layers are formed on the connection interfaces of the fluorescentfilms and the LED chips, so that the brightness of the LED lamp beads is greatly improved.

The present invention relates to a class of A-D-A conjugated molecules based on a dithieno-indazene unit as a core, an oligomerized five-membered aromatic heterocycle as a bridging unit, and an electron-drawing unit at the end and a preparation method thereof, and the class Applications of molecules as active layer electron donor or electron acceptor materials in organic solar cells. The A-D-A conjugated molecule based on dithienoindacene of the present invention can be processed by solution method, has suitable energy level, strong sunlight capture ability and thermal stability, and is an electron donor or Ideal materials for electron acceptors. It has the following general structure:

The invention discloses a self-growing noble metal plasma element nano-structure. The self-growing noble metal plasma element nano-structure comprises a noble metal nano-structure prepared on an n type AlIn layer on the surface of a solar battery. The noble metal nano-structure is an Ag nano-structure, the diameter of the Ag nano-structure is 10-50 nanometers, and the distribution density of the Ag nano-structure is 2.0*10<9>-3.0*10<10> / cm<2>. The noble metal nano-structure is an Au nano-structure, the diameter of the Au nano-structure is 20-70 nanometers, and the distribution density of the Ag nano-structure is 1.0*10<10>-5.0*10<10> / cm<2>. The noble metal nano-structure is prepared on the surface of the solar battery by using a direct growth method for the first time, and a photoetching process is not needed any more, thereby avoiding a complex pattern preparation process. Meanwhile, the machining processes of physical deposition, chemical deposition, reactive ion etching, mechanical polishing and thermal treatment are not needed, and a preparation process is simple.