133results about How to "Increased preparation rate" patented technology

The invention discloses an all solid state perovskite microcrystalline silicon composite solar battery and a preparation method thereof, and relates to a semiconductor device specially suitable for converting light energy into electric energy. The all solid state perovskite microcrystalline silicon composite solar battery is composed of a transparent conducting substrate, an oxide semiconductor film layer, a perovskite light absorption layer, a microcrystalline silicon hole transport layer and a back electrode. The preparation method of the all solid state perovskite microcrystalline silicon composite solar battery includes: preparing the perovskite light absorption layer on the transparent conducting substrate coated with an oxide semiconductor film; depositing the microcrystalline silicon hole transport layer on the perovskite light absorption layer so as to form an all solid state perovskite microcrystalline silicon composite film; compositing perovskite light absorption layer material and P type microcrystalline silicon material in matching mode. The all solid state perovskite microcrystalline silicon composite solar battery prepared from the above preparation method simultaneously overcomes the defects that an existing perovskite solar battery is poor in stability and expensive in cost due to the fact that organic hole transport material is used on the existing perovskite solar battery, and the defects that preparation costs are high and photoelectric conversion efficiency is low, caused by low preparation speed of a microcrystalline silicon thin film solar battery.

The invention provides graphene, graphene hydrosol, and graphene powder obtained by drying the graphene hydrosol, wherein the edge of the graphene comprises active groups, and the active groups comprise amino groups. The preparation method of the graphene hydrosol comprises the following steps: (1), performing electrochemical intercalation and exfoliation on graphene to obtain graphene dispersed in electrolyte; the electrolyte after electrochemical intercalation and exfoliation contains both inorganic salt and amino acid; after intercalation, removing free inorganic salt and amino acid compounds from the solution to obtain the graphene hydrosol. According to the graphene, graphene colloidal sol, graphene powder and the preparation method and the preparation device, provided by the invention, the graphene hydrosol is provided, the use of a great deal of an organic solvent in the graphene hydrosol based on the organic solvent is reduced, the stability is good, the preparation method is simple, the operation is easy, the equipment and material requirements are low, the environmental friendliness is achieved, and the industrialization is facilitated.

The invention relates to a luminous apparatus and its making method, manufacturing system, sealing device, luminous source, aphototropism module and display device; the said luminous comprises luminous semiconductor device and fluorescence powder layer placed on the optical paths of the luminous semiconductor device, and some parts of the fluorescence powder layer are coagulum without binding agent. The making method comprises: providing miscible liquids with base materials; removing liquids after stewing for a while to reduce the distance of the fluorescence powder to form the coagulum and be on the base materials without binding agent. Also provides a manufacturing system for luminous apparatus, comprising: container, imbedding device, liquids providing device, agitating device and liquids removing device.

The invention relates to a polyaniline/carbon nanotube/cotton fabric composite flexible electrode with high specific capacitance, and preparation and application thereof. The preparation comprises the steps: enabling a carbon nanotube to be carried by cotton fabric, carrying out the chemical plating of polyaniline, and obtaining a polyaniline/carbon nanotube/cotton fabric compound; adding a carboxylation carbon nanotube to deionized water, adding sodium dodecyl benzene sulfonate, carrying out the stirring, supersonic and dispersing operation, and obtaining carbon nanotube dispersion liquid; enabling the cotton fabric to be immersed in the carbon nanotube dispersion liquid for processing, then taking out the cotton fabric for drying, washing and airing under the room temperature, obtaining a carbon nanotube/cotton fabric compound, enabling the carbon nanotube/cotton fabric compound to be immersed in mixed liquid of hydrochloric acid and phenylamine for 0.5-1.5 hour, adding ammonium persulfate solution, carrying out the polymerization reaction, washing and airing under the room temperature, and obtaining the electrode. The electrode prepared through the above method is light in weight and is flexible, and the method is high in efficiency. All materials used in an experiment are commercial products, thereby greatly improving the preparation feasibility and industrialization. The method is very good in prospect.

The invention discloses a solid dye-sensitized nanocrystal/microcrystal silicon composite film solar cell and a preparation method thereof, and relates to a special semiconductor device for converting light energy into electric energy. The solid dye-sensitized nanocrystal/microcrystal silicon composite film solar cell is composed of a transparent conducting substrate, a dye-sensitized nanocrystal porous film, a porous membrane, a microcrystal silicon hole transport layer and a back electrode, wherein the dye-sensitized nanocrystal porous film is coated on the transparent conducting substrate; the microcrystal silicon hole transport layer is settled on the dye-sensitized nanocrystal porous film to form the solid dye-sensitized nanocrystal/microcrystal silicon porous film; and an aluminum or copper film is plated on the solid dye-sensitized nanocrystal/microcrystal silicon porous film to form the back electrode. In the invention, the dye-sensitized nanocrystal and the microcrystal silicon composite film are matched and compounded to prepare the solid dye-sensitized nanocrystal/microcrystal silicon composite film solar cell. The invention overcomes the defect of poor liquid stability in the traditional dye-sensitized solar cell and the defects of low preparation rate and high preparation cost in the prior microcrystal silicon film solar cell.

The invention provides a flat panel detector structure and a preparing method thereof. The preparing method comprises the steps of providing a substrate and preparing a lower electrode layer on the substrate; providing a radiation absorbing material liquid, wherein the radiation absorbing material liquid comprises a lead-containing compound liquid; and coating the radiation absorbing material liquid on a lower electrode layer to prepare a light-converting layer on the lower electrode layer based on the coated radiation absorbing material liquid; and preparing an upper electrode layer on the light-converting layer. The structure and method of the invention improve the materials of the existing light-converting layer, improve the radiation absorption capability of the light-converting layer,reduce the thickness of the light-converting layer, design the forming method of the light-converting layer and solve the problem in forming a polycrystalline structure. Furthermore, the chemical composition and phase uniformity of the device are improved; the uniformity of the image is raised; the effective utilization of raw materials is raised; the process equipment is simplified; the structure of the detector is designed; the problem of leakage current is mitigated; the noise of detector is reduced; the sensitivity and the contrast ratio are raised; the electrode materials of the detectorare improved; and the cost is reduced.

The invention discloses a thin film crystal silicon perovskite heterojunction solar cell manufacturing method, which relates to a semiconductor device manufacturing method particularly suitable for converting optical energy into electric energy, and is a manufacturing method based on an excimer laser crystallization method. The method of the invention comprises steps: the excimer laser crystallization method is used for manufacturing a P-type thin film crystal silicon layer on a transparent conductive substrate, spin coating of a perovskite light absorption layer is carried out on the P-type thin film crystal silicon layer, an electron transport layer formed by dense titanium dioxide is manufactured on the perovskite light absorption layer, a back electrode is manufactured on the electron transport layer formed by the dense titanium dioxide, and finally, a thin film crystal silicon perovskite heterojunction solar cell composed of the transparent conductive substrate, the P-type thin film crystal silicon layer, the perovskite light absorption layer, the electron transport layer formed by the dense titanium dioxide and the back electrode is manufactured. Defects that the layer transfer technique used in the prior art has multiple steps and is complicated, the obtained thin film crystal silicon has a small size, the finished product rate is low, and the thickness of the thin film crystal silicon can not be over thin can be overcome.

The invention discloses a water-based paint composition for building exterior walls and a preparation method thereof, comprising the following raw materials in parts by weight: 30-35 parts of water-based polyurethane emulsion, 25-29 parts of polyacrylate, 26-31 parts of isocyanate, polyether 25‑30 parts, 16‑20 parts of sodium methyl silicate, 11‑14 parts of sodium carbonate, 10‑15 parts of talc powder, 11‑16 parts of mica powder, 12‑17 parts of titanium dioxide, 8‑12 parts of sodium tripolyphosphate 9-13 parts of polyoxyethylene fatty acid ester, 7-11 parts of sodium polyacrylate, 6-10 parts of tricresyl phosphate, 5-9 parts of ethylene glycol butyl ether, 4-8 parts of tetrachloroisophthalonitrile , 3-7 parts of ethylene glycol, 5-8 parts of terpineol, 30-34 parts of deionized water; including the following steps: S1: water-based polyurethane emulsion, polyacrylate, isocyanate, polyether, sodium methyl silicate and deionized water in a blender. The invention has excellent waterproof performance, high tensile strength and good flexibility, and also has excellent mechanical properties, low cost, high yield and no pollution to the environment.

The invention discloses a 3D voxel printing device based on cell soft spheres and a method thereof. The device comprises a water phase input part, an oil phase input part and a microfluidic microtube,wherein the water phase input part inputs an extracellular matrix material loaded with cells, namely bio-ink, into the microfluidic microtube; and the oil phase input part synchronously inputs a low-viscosity and low-boiling-point oil phase meeting set requirements into the microfluidic microtube. The extracellular matrix material loaded with the cells is separated into monodisperse microdropletsembedded with the cells through an oil phase, the microdroplets are gelled into cell soft spheres in the flowing process in the microtube, the cell soft spheres are sequentially shot onto a substrateby utilizing rapid expansion and volatilization of the oil phase at an outlet of the microfluidic microtube, and the cell soft spheres are adhered together through an incompletely gelled ink material. An in-vitro model capable of highly reducing the human organ or tissue structure and the cell microenvironment can be printed under the condition that a printing material does not contain a biological inert material for assistance.

The invention discloses a building external wall temperature-change-resistant anti-oxidative color coating, which is prepared from the following raw materials in parts by weight: 20 to 25 parts of carboxylic waterborne polyurethane, 19 to 24 parts of pure silicon resin emulsion, 11 to 16 parts of cobalt blue, 10 to 15 parts of mill base, 8 to 12 parts of bentonite, 7 to 11 parts of mica powder, 6 to 10 parts of kaolin, 5 to 9 parts of talcum powder, 12 to 14 parts of sodium carbonate, 9 to 11 parts of sodium tripolyphosphate, 10 to 12 parts of polyoxyethylene aliphatic ester, 8 to 10 parts of sodium polyacrylate, 13 to 16 parts of sheet zinc powder, 7 to 11 parts of aluminum hydroxide, 5 to 8 parts of silicon nitride, and 30 to 35 parts of deionized water. A preparation method comprises the following steps of S1, adding the carboxylic waterborne polyurethane, the pure siliconresin emulsion, the cobalt blue, the mill base and the deionized water into a stirrer, and stirring with the stirring speed of 30 to 40rpm for 20 to 30min at the temperature of 40 to 50 DEG C; S2, adding the sheet zinc powder, the aluminum hydroxide and the silicon nitride for stirring with the stirring speed of 100 to 150rpm for 5 to 10min. The building external wall temperature-change-resistant anti-oxidativecolor coating provided by the invention has excellent temperature alternating resistance and oxidation resistance, has high tensile strength and favorable flexibility, and is simple in preparation process, convenient to use, and low in cost.

The present invention provides a chemical sensor simultaneously having light sensitivity and gas sensitivity, and relates to a semiconductor device specially adapted for various gases and illuminationdetection. The chemical sensor comprises the sensitive layer of a chemical sensor, a planar Au plating ceramic substrate, a leading wire and a gas sensor base, wherein the sensitive layer of the chemical sensor is a thin film layer obtained by doping a CH3NH3PbI3 perovskite precursor liquid and WO3 nanometer powder, and a heating layer made of a special material and a Au plating electrode are arranged on the planar ceramic sheet. According to the present invention, by preparing the CH3NH3PbI3 perovskite precursor liquid and WO3 nanometer powder mixing chemical sensor, the gas sensitivity of the sensor is improved, the sensitivity to gases is improved, the chemical sensor has good sensitivity to light, and the resistance of the sensor is reduced in the case of strong illumination so as toimprove the sensitivity to gases.

The invention relates to a reinforced-concrete draught fan tower. The reinforced-concrete draught fan tower comprises a pile foundation, a supporting platform, a concrete tower body and a steel tower body, wherein the pile foundation, the supporting platform, the concrete tower body and the steel tower body are sequentially arranged from bottom to top. The pile foundation is pre-buried underground, the supporting platform laid on the pile foundation is arranged at the bottom of the concrete tower body, the supporting platform and the pile foundation are integrally formed through pouring, and the top of the concrete tower body is coaxially and fixedly connected with the bottom of the steel tower body through a connecting part. The upper ends and the lower ends of prestressed steel bars penetrating through the side wall of the concrete tower body are fixed to the connecting part and the supporting platform correspondingly through anchors. Due to the arrangement, the draught fan tower which is overall high is divided into the concrete tower body and the steel tower body, so that the overall manufacturing cost of a draught fan is lowered; meanwhile, the upper ends and the lower ends of the prestressed steel bars penetrating into the concrete tower body are fixed through the anchors correspondingly, so that the prestressed steel bars are in a tensioned state, wind resistance and vibration reduction are provided for concrete steel bars, and shaking caused by pneumatic vibration of the tower is buffered.

The invention discloses a carbon nanotube fibrous composite material and a preparation method thereof. The preparation method comprises the following steps: providing one-dimensional carbon nanotube fibers; by a method of layer-by-layer winding, stacking and the like, and adding reinforcing bodies, enabling the carbon nanotube fibers to be in stacked arrangement layer by layer so as to form a carbon nanotube fibrous composite material prepreg body with a layered composite structure; and performing forming treatment on the carbon nanotube fibrous composite material prepreg body, thereby obtaining the carbon nanotube fibrous composite material. The preparation method has the beneficial effects that an interlayer arrangement mode is adjusted and controlled by adjusting and controlling the adopted arrangement parameters of the carbon nanotube fibers, interpenetration of the carbon nanotube fibers in a plurality of layers is realized, and the obtained carbon nanotube fibrous composite material has the advantages of strong interlayer action, convenience for forming, convenience for dimension design, high preparation efficiency and the like, can exert the advantage of the mechanical properties of the carbon nanotube fibers and also can maintain the electric and thermal properties of the carbon nanotube fibers.

A method of preparing calcium fluoride comprises the following steps: providing a waste solution containing HF acid; controlling the HF content of the waste solution within a predetermined concentration range; adding a Ca source to the waste solution containing HF acid within a predetermined concentration range; and controlling the reaction temperature of Ca and HF acid within a predetermined temperature range to form CaF2. Accordingly, the method of preparing calcium fluoride of this invention has the advantages of simple process, low costs, high CaF2 preparation speed, and high and stable purity and quality of CaF2 prepared thereby.

The present invention provides a film solar cell with the combination of a perovskite monocrystalline material and P-type monocrystalline silicon, and relates to a semiconductor device for converting luminous energy to electric energy. The film solar cell with the combination of the perovskite monocrystalline material and the P-type monocrystalline silicon is formed by a bottom electrode, an N-type oxide semiconductor film, a C<60> electronic film, a perovskite monocrystalline luminous absorption layer, a monocrystalline silicon hole transport layer, and top electrodes, the oxide semiconductor film is an N-type zinc oxide film obtained through magnetron sputtering, the C<60> electronic film is a buffer layer obtained through thermal evaporation, the perovskite monocrystalline is a luminous absorption material with a perovskite structure, the hole transport layer is a P-type monocrystalline silicon material obtained through magnetron sputtering, and the bottom electrode and the top electrodes are films formed by aluminum or silver and obtained through thermal evaporation. According to the film solar cell, the perovskite monocrystalline material is regarded as the luminous absorption layer, the P-type monocrystalline silicon material is regarded as the hole transport layer, and the stable and high-efficiency solar cell is obtained.