69results about How to "Improve light scattering performance" patented technology

The invention discloses a method for preparing a three-dimensional spherical anatase type TiO2 photo-anode, relating to a solar cell photo-anode. The method comprises the steps of: preparing a reaction water solution, wherein the reaction water solution contains 0.1-1M sodium hydroxide and 5wt%-30wt% of hydrogen peroxide; then, cleaning a titanium sheet, placing the cleaned titanium sheet in the reaction water solution, sealing the reaction water solution in a hydrothermal kettle for reaction, and then cooling to obtain light yellow precipitates; then, washing and filtering the light yellow precipitates, drying and sintering the light yellow precipitates to obtain three-dimensional TiO2 nanospheres; and mixing and stirring the three-dimensional TiO2 nanospheres, polyethylene glycol, deonized water and absolute ethyl alcohol to prepare slurry, cleaning and drying FTO electrocondcutive glass, coating a slurry layer on the FTO electroconductive glass, sintering and then carrying out TiCl4 treatment to obtain the three-dimensional spherical anatase type TiO2 photo-anode. The method is simple to operate, short in operation time, low in cost, remarkable in improving the performance of a dye-sensitized solar cell, and easy for industrialization.

A string light has multiple icicle-shaped bulbs, a controller and a connector assembly. The icicle-shaped bulbs are serially connected by a set of wires. Each icicle-shaped bulb has an icicle-shaped lamp holder shell, an elongated lamp strip and a cap assembly. The lamp holder shell has an irregular and rough surface and an opening. The lamp strip is mounted inside the lamp holder shell. The cap assembly is mounted on the opening of the lamp holder shell and has a set of through holes for the set of wires to penetrate into the lamp holder shell. Accordingly, light emitted from each icicle-shaped bulb is scattered irregularly to generate different illuminating effects when the icicle-shaped bulb is powered on and make the lighting variations of the entire string light more versatile and interesting.

A display device includes a first electrode disposed on a substrate; a pixel defining layer including first through third exposure areas, each exposing at least part of the first electrode; first through third organic light emitting layers disposed in the first through third exposure areas, respectively; a second electrode disposed on the first through third organic light emitting layers; a first capping layer disposed on the second electrode and overlapping upper surfaces of the first through third organic light emitting layers; a second capping member disposed on the first capping layer, does not overlap the upper surface of the first organic light emitting layer, and overlaps only a portion of each of the upper surfaces of the second and third organic light emitting layers; and an encapsulation layer covering the second capping member.

A surface paper with a heat transfer label and a production method thereof are disclosed. The surface paper comprises a layer of original paper, at least a receiving layer is formed on one side or two sides of the original paper layer, and the receiving layer is composed of the following components in parts by weight: 100 parts of white pigment, 5 to 15 parts of adhesive agent, 10 to 20 parts of amorphous mat filling material, and 5 to 15 parts of paint made of hot-melt adhesive; wherein the solid content of the paint is 45% to 70%, the paint viscosity is 400 cps to 1000 cps, and the coating amount of the paint on the receiving layer is 1 g/m2 to 20 g/m2. Preferably, a thermal insulation layer is formed between the receiving layer and the original paper layer. The surface paper with a heat transfer label is obtained by preparing original paper and paint, coating paint on the surface of the original paper, and press-polishing the surface. The surface paper with a heat transfer label has the characteristics of simple preparation method and low cost.

The invention discloses a method for preparing flower-sphere-shaped light calcium carbonate by using ultra-fine ground heavy calcium carbonate as a seed crystal. The method comprises the following steps: adding the ultra-fine ground heavy calcium carbonate used as the seed crystal into calcium hydroxide concentrate slurry, performing mixing, introducing carbon dioxide, and performing a carbonization reaction to obtain the flower-sphere-shaped light calcium carbonate, wherein an addition amount of the ultra-fine ground heavy calcium carbonate is 0.5-2% of a mass of the flower-sphere-shaped light calcium carbonate. According to the method provided by the invention, the flower-sphere-shaped light calcium carbonate prepared by the method is grown and arranged in a radioactive spherical shape by using the ultra-fine ground heavy calcium carbonate seed crystal as a core, the structure makes the flower-sphere-shaped light calcium carbonate have high light scattering ability, and paper whiteness and opacity can be significantly improved; and in addition, due to the induction action of the seed crystal, the efficiency of carbonization is improved, covering of un-reacted calcium hydroxide isreduced, so that the flower-sphere-shaped light calcium carbonate has extremely-narrow particle size distribution, and the spherical particles give good rheological properties to the slurry.

A transparent electrode substrate in which a transparent electrode formed from a zinc oxide-based thin film is formed on a translucent insulating substrate, the zinc oxide-based thin film containing zinc oxide as the main component and at least one type of dopant element. The zinc oxide-based thin film has an uneven surface and a dopant element concentration gradient in which the concentration of the dopant element continuously decreases from the side of the translucent insulating substrate to the surface of the zinc oxide-based thin film. The concentration of the dopant element in the zinc oxide-based thin film is 1.5 atom % to 3 atom % in a region from the translucent insulating substrate to 50 nm inward in the thickness direction and is 0.2 atom % to 1 atom % in a region from the surface of the zinc oxide-based thin film to 300 nm inward in the thickness direction.

The invention discloses a large-area flexible thin film solar cell, comprising at least a release protective layer, a thin film solar cell layer system and a flexible carrier layer. The release protective layer is formed on the surface of a hard carrier in manufacturing, the thin film solar cell layer system with inner cascade is formed on the surface of the release protective layer; the flexible carrier layer is integrated with the thin film solar cell layer system; and the release protective layer contains metallic oxide powder. The large-area flexible thin film solar cell disclosed by the invention can not only improve the tensile strength and size stability of the release protective layer, but also improve transparency and light scattering capability of the release protective layer, thus further improving photoelectricity conversion efficiency.

The invention relates to a method for growing a ZnO-TCO thin film with a suede structure, which comprises the following steps of: taking a glass substrate as a substrate, a Zn-AI alloy target with the purity of 99.995% as a target raw material, and Ar gas as sputtering gas; introducing oxygen in the sputtering process, wherein the oxygen flow presents gradient change in the sputter coating cycle;and preparing the ZnO-TCO thin film with the suede structure by using a magnetic control sputter coating technology. The method has the advantages: compared with the ZnO-TCO thin film with the suede structure, obtained through the traditional sputtering technology, the thin film obtained through a gradient oxygen flow method has better transmission rate and maintains better electricity property; in addition, the suede structure of the thin film is obviously improved; and the ZnO-TCO thin film is applied to microcrystalline silicon thin film cells or amorphous silicon/microcrystalline silicon laminating thin film cells, and has the advantages of being capable of improving the light scattering function, prolonging the incidence optical length, effectively reducing the thickness of active layers, and increasing the efficiency and stability of Si-based thin film solar cells.

The invention discloses a high-flame-retardant low-gloss dynamically vulcanized thermoplastic elastomer material and a continuous preparation method thereof. The material is prepared from an ethylene-butylene elastomer, polypropylene, a cross-linking agent, lipophilic silicon dioxide, polyethylene wax, an assistant cross-linking agent, a halogen-containing flame retardant, a flame retardant aid, an anti-dripping agent, a lubricant and an antioxidant. According to the thermoplastic elastomer material, the impact resistance can be improved in the presence of the flame retardant, the flame retardant property is excellent, the V0 level can still be achieved under the condition that the thickness is 0.8 mm, the special lipophilic silicon dioxide and polyethylene wax are used for reducing the glossiness of the material, and the glossiness can be remarkably reduced. The production process of the dynamically vulcanized thermoplastic elastomer is low in energy consumption, greatly reduces the production cost, and is very suitable for large-scale process production.

The invention discloses a gradient hydrogen process grown ZnO-TCO thin film with a textured structure, which is prepared by using a glass substrate as a substrate, ZnO:Ga2O3 or ZnO:Al2O3 as a target material and Ar as a sputtering gas, introducing hydrogen in a sputtering process and varying the flow of the hydrogen in a gradient manner in a sputtering coating period and by a magneto-controlled sputter coating technique. The gradient hydrogen process grown ZnO-TCO thin film has the advantages that: compared with ZnO-TCO thin film with the textured structure, which is obtained by using the magneto-controlled sputter coating technique with normal hydrogen flow, the ZnO-TCO thin film with the textured structure, which is grown gradient hydrogen flow process, has higher transmissivity and better electrochemical property, and the textured structure of the thin film is improved obviously; and when the thin film is used in a microcrystalline silicon thin film cell or noncrystalline silicon cell/microcrystalline silicon tandem thin film solar cell, the light scattering effect is improved, the incident light path is increased, the thickness of an active layer is lowered effectively, and the efficiency and stability of a Si-based thin-film solar cell are improved.

An alloy substrate (32) formed of an alloy of Ni and Mo is formed by electroforming. The alloy substrate (32) has a graded composition with an alloy composition varied in its thickness direction. In this case, the alloy substrate (32) on its lower surface side is mainly composed of Ni, and the alloy substrate (32) on its upper surface side is mainly composed of Mo. The alloy substrate (32) has on its upper surface a large number of minute pyramid-shaped concavoconvexes (37) with a high light scattering effect. A CIS optical absorption layer (33) is provided on the upper surface of the alloy substrate (32), and an upper electrode (35) is provided above the optical absorption layer (33).

The invention discloses a forming method of tin oxide with high quality. When an APCVD is used for making a low resistance with textures and highly transparent tin oxide films which are suitable for film solar cells, at first, a first layer tin oxide with textures and higher resistivity is deposited on a glass substrate, and then a second layer tin oxide with higher conductivity which is smooth itself is formed on the glass substrate. Compared with the traditional one-step formed tin oxide, the multi-step formed tin oxide is easier to satisfy various needs of film solar cells with high performance.

The invention discloses a stacked organic light emitting device and a preparation method thereof. The stacked organic light emitting device comprises an anode, a hole injection layer, a first hole transport layer, a first light emitting layer, a first electron transport layer, a charge generation layer, a second hole transport layer, a second light emitting layer, a second electron transport layer, an electron injection layer and a cathode which are sequentially stacked. The charge generation layer comprises a metal oxide layer, an n-type doped layer and a metal oxide doped layer which are sequentially stacked. The metal oxide layer can improve the electron transport rate. The n-type doped layer can provide electrons and holes at the same time, and improves the stability and light scattering effect of the charge generation layer. The metal oxide doped layer improves the hole transport rate, and meanwhile, the metal oxide is of an amorphous structure which can inhibit crystallization of polycrystalline hole transport materials and avoid the presence of electron traps. The invention further provides a preparation method of the stacked organic light emitting device.

The invention discloses an epoxy resin composition for a diffusion plate, a prepreg and a preparation method and application thereof. The epoxy resin composition for the diffusion plate comprises the following components in parts by mass: 40-80 parts of matrix resin, 5-15 parts of core-shell resin, 5-15 parts of organic particles, 10-30 parts of nanoscale filler, 0.1-0.3 part of a dispersing agent, 2-4 parts of a curing agent and 0.01-0.05 part of an accelerant. The optical properties of a prepreg and a diffusion plate which are further prepared from the epoxy resin composition for the diffusion plate prepared from the raw materials are remarkably improved, meanwhile, the mechanical properties are also greatly improved, and the epoxy resin composition has a good application prospect.

The invention relates to a reaction extrusion polymerization method of a functional acrylate resin, which comprises the following steps: dissolving acrylate resin monomer in modified resin at certain temperature, and adding modifying monomer and nano/micro inorganic modifying material to implement extrusion polymerization directly by monomer one-step reaction, thereby obtaining the high-performance functional acrylate resin. The invention avoids losing economical efficiency for production due to overlong retention time in the resin reaction extrusion polymerization, and overcomes the defects of high tendency of flash polymerization and difficulty in stable control in the route of reaction extrusion polymerization after monomer prepolymerization in the reaction kettle. The method has the advantages of high efficiency, low energy consumption, low cost, extremely low pollution, continuous production, no need of solvent recovery, very low equipment investment and the like; and the obtained product has the advantages of excellent transparency, excellent mechanical properties, surface scratch resistance, different light scattering rates and the like.

The invention discloses a matt coated paper preparation method, and relates to the technical field of coated paper. The matt coated paper preparation method comprises the following steps: (1) raw paper preparation, (2) coating preparation, and (3) coating. The matt coated paper is not glaring during reading, difference between gloss of a printed product and gloss of paper is large, thus, high quality of the printed product is highlighted, images and texts are bright in color, and the printing adaptability is good.

The invention discloses a flip LED chip. The flip LED chip comprises a substrate, an epitaxial layer, a transparent conductive layer, a variable transparent curve-surface layer, a reflection layer, aninsulation layer, a first electrode and a second electrode, wherein the epitaxial layer is arranged on the substrate, the transparent conductive layer is arranged on the epitaxial layer, the variabletransparent curve-surface layer is arranged on the transparent conductive layer, the reflection layer is arranged on the variable transparent curve-surface layer, the insulation layer is arranged onthe reflection layer, a contact surface of the variable transparent curve-surface layer and the reflection layer is a convex curve surface, and the variable transparent curve-surface layer is made ofa transmitting material of which the reflective index is larger than that of air. Correspondingly, the invention also provides a fabrication method of the flip LED chip. By arranging the variable transparent curve-surface layer between the transparent conductive layer and the reflection layer, the light giving-out efficiency of the chip is improved.

A flexible linear light emitting element to be flexibly bent along the shape of an object to be decorated or to be bent in accordance with a linearly represented decorative letter or decorative pattern of any kind and to excel in light emitting performance such as luminance as well as a method of producing the same. The optical fiber type linear light emitting element includes a bar-shaped extrusion-molded article in which a clad layer made from a fluorine resin is integrally formed over the periphery of a cored layer made from an acrylic thermoplastic elastomer; and a block copolymer of methyl methacrylate and butyl acrylate or a block copolymer of methyl acrylate and butyl acrylate, the flexural modulus of elasticity (according to ASTM D790) of the copolymers ranging from 50 to 500 MPa, is adopted for the material of the cored layer.

The invention discloses a preparation method of a functional thermal-insulation and anti-bacterial starch coating. The preparation method comprises steps as follows: a low-temperature gelatinized starch solution is prepared and modified with styrene-acrylic emulsion; talcum powder, zinc oxide and nanometer titania are subjected to high-temperature calcination and ball-milling treatment to coat prepared oil phase; a dispersing agent, a lubricating agent, a film-forming agent, an anti-settling agent, an anticorrosive agent, polyethylene glycol, ammonium hydroxide and filler are mixed and stirred, a mixture, the styrene-acrylic modified gelatinized starch solution and coated powder are added to a ball mill for grinding, a product is mixed uniformly with other materials, and the functional thermal-insulation and anti-bacterial starch coating is obtained. According to the preparation method, water resistance is improved by the styrene-acrylic emulsion, and the coating is prepared by mixingwith raw materials such as inorganic filler and the like and has good water resistance and good thermal-insulation and anti-bacterial functions.