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119results about How to "Improve the utilization rate of sunlight" patented technology
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Organic wastewater treatment film reactor utilizing sunlight-assisted electro-catalysis
InactiveCN102603037AAccelerated adsorption/desorption rateThe actual user interface increasesWater/sewage treatment by irradiationEnergy based wastewater treatmentPhoto assistedPorous channel
The invention relates to an organic wastewater treatment film reactor utilizing solar energy photo-assisted electro-catalysis, which comprises a storage tank of water to be processed, a flow controllable constant flow pump, a photoelectric chemical reactor, a clear water storage tank and a solar battery component, wherein a photo anode and a cathode are correspondingly arranged in the reactor; the photo anode takes a porous metal membrane as a base body, and a TiO2 nano tube or a TiO2 mesoporous membrane is formed on the surface of a porous titanium membrane (net) by an electrochemical anisotropic etching technology; a porous channel film is used as the base body; a metal oxide coating electrode with high electrochemical catalytic activity and high electrical conductivity is prepared by a dipping film-forming method, simultaneously, by doping and modifying operations, the electrode material has photo catalytic activity and the reaction efficiency is improved. The reactor integrates electrochemistry, photocatalysis and film separation technologies; the three technologies are coupled to enhance a synergistic effect; the wastewater treatment efficiency can be improved; a solar component is adopted as a power supply; the clean solar energy is utilized to the maximal degree, and the organic wastewater treatment film reactor has social benefits of reducing environment load and economic benefits of reducing cost.
Owner:NANJING UNIV OF TECH
Preparation of transparent film for improving optoelectronic transformation efficiency of solar photovoltaic battery
InactiveCN101320756AExtended power generation timeExtend your lifeFinal product manufacturePhotovoltaic energy generationTransformation efficiencyPolyvinyl chloride
The invention discloses a preparation method of a transparency film used for increasing photoelectric conversion efficiency of a solar photovoltaic cell. The transparency film used for increasing photoelectric conversion efficiency of the solar photovoltaic cell comprises: (1) at least one down conversion agent A; (2) at least one up conversion agent B; (3) at least one up and down conversion agent C; (4) at least three visible light arousing long afterglow light conversion agent D, E, F; (5) a matrix resin (polyethylene, polystyrene or polyvinyl chloride); (6) an ageing resistant consistent with above materials (1), (2), (3), (4) and (5). The transparency film used for increasing photoelectric conversion efficiency of the solar photovoltaic cell is provided with the characteristics of optical conversion and noctilucence, and is lasting and stable, can cause the common photovoltaic cell to make use of solar for longer time and more effectively, and mostly can improve the photoelectric conversion efficiency of the common photovoltaic cell more than 30%, namely can cause the photoelectric conversion efficiency of the common photovoltaic cell to achieve more than 22%.
Owner:徐耀平 +2
Silver phosphate/zinc oxide composite photocatalytic material and preparation method therefor
InactiveCN103480400AEnhanced Absorption and ResponseImprove the utilization rate of sunlightPhysical/chemical process catalystsPhotocatalytic degradationPhoto catalysis
The invention relates to the technical field of photocatalysis, particularly to a silver phosphate / zinc oxide composite photocatalytic material and a preparation method therefor. The preparation method comprises the following steps: ultrasonic dispersion of zinc oxide in deionized water is performed so as to obtain a zinc oxide dispersion liquid; silver nitrate is dissolved into deionized water, the deionized water is dripped into the zinc oxide dispersion liquid under a magnetic force stirring condition so as to obtain a mixed solution, after a period of time of stirring, a well prepared phosphate solution is slowly added into the mixed solution of zinc oxide and silver nitrate for stirring continuously for a period of time, after dripping, a mixed solution is obtained and stirred continuously, after product suction filtration, absolute ethyl alcohol and deionized water are used for washing repeatedly, then vacuum drying is performed, and the silver phosphate / zinc oxide composite photocatalytic material is obtained. The silver phosphate / zinc oxide composite photocatalytic material provided by the invention has the advantages that raw material sources are wide, the preparing process is simple and feasible and the cost is low. The prepared silver phosphate / zinc oxide composite photocatalytic material has a better photocatalytic degradation effect on an organic dye material, rhodamine B, under the irradiation of ultraviolet light, and the composite photocatalytic material has wide application prospects in the fields of environmental pollution improvement and purification, and environment-friendly materials.
Owner:JIANGSU UNIV
Automatic tracking solar power generating device
InactiveCN102035434AImplement trackingImprove the utilization rate of sunlightPhotovoltaic supportsControl using feedbackElevation angleMotor drive
The invention relates to an automatic tracking solar power generating device, comprising a solar cell and a solar cell bracket, wherein the solar cell is arranged on the solar cell bracket; a photoreceptor is arranged in the east-west direction above the solar cell; the photoreceptor output a signal by means of blocking of a baffle; and the output signal is used for controlling a stepping motor rotating horizontally. The stepping motor drives the solar cell bracket by a gear and semicircular racks so as to carry out swivel adjustment on the east-west angle of the solar cell. The elevation angle of the solar cell bracket and the sun is changed by expansion of an expansion device due to increase and decrease of pressure caused by phase change of an energy-storing medium. Therefore, omnibearing tracking of solar power generation is realized and the sunlight utilization ratio is improved by 30%-50% compared with that obtained by a fixed solar power generating device.
Owner:陈永胜
Light-gathering seawater desalination device and seawater desalination method
ActiveCN110498465AIncrease profitPromote absorptionSolar heating energyGeneral water supply conservationFresh water organismEvaporation
The invention discloses a light-gathering seawater desalination device and a seawater desalination method. The seawater desalination device includes: a semielliptical solar heat collection cover, wherein a freshwater collection tank is arranged at the bottom of the inner wall of the solar heat collection cover, the freshwater collection tank defines an evaporation plane at the bottom of the solarheat collection cover, a freshwater outlet is arranged in the freshwater collection tank, the freshwater outlet is connected with a freshwater storage unit, the b-axis length of the solar heat collection cover is longer than the a-axis length of the solar heat collection cover, and the b-axis is perpendicular to the evaporation plane; a light gathering member, wherein the light gathering member isconfigured to gather sunlight radiated to the solar heat collection cover; and a cooling unit, wherein the cooling unit is arranged outside the solar heat collection cover, and is configured to coolthe outer surface of the solar heat collection cover. The light-gathering seawater desalination device can be directly used on the water surface (such as the sea surface), and has the advantages of simple structure, low cost, convenience in use, high solar energy utilization rate, high seawater desalination efficiency and high water purification efficiency.
Owner:TSINGHUA UNIV +1
Silver phosphate/P25 bi-functional composite material, preparation method and application thereof
InactiveCN102974374APromote absorptionImprove responsivenessBiocidePhysical/chemical process catalystsOrganic dyePhosphate
The invention discloses a silver phosphate / P25 bi-functional composite material, a preparation method and an application thereof, and belongs to the technical field of antibacterial materials, photocatalysis and environment treatment. The preparation method comprises the following steps of dispersing the P25 in water under the assistance of ultrasonic to obtain a P25 dispersion solution; dissolving silver nitrate in deionized water, adding the silver nitrate solution into the above P25 dispersion solution with magnetic stirring to obtain a mixed solution; dropwise adding a prepared phosphatic solution into the mixed solution slowly until brown yellow turbid appears in the reaction system; stirring continuously after the phosphatic solution is completely added; pump-filtering, washing, and vacuum-drying the product to obtain the silver phosphate / P25 bi-functional composite material. The prepared composite material not only has relatively good photocatalytic degradation effect for an organic dye rhodamine B, but also has wide-spectrum sterilization effect for common bacteria. The bi-functional composite material has wide application prospects in the fields of treatment and purification of environment pollutions, environment-friendly functional materials, etc.
Owner:JIANGSU UNIV
Novel digested-effluent organic liquid fertilizer and preparation method therefor
The invention discloses a novel digested-effluent organic liquid fertilizer and a preparation method therefor, relates to a fertilizer prepared from wastes or garbage and particularly relates to the low-concentration and high-efficiency organic liquid fertilizer prepared from digested effluent. The object of the invention is to provide the low-concentration, high-activity and good-fertilizer-effect organic liquid fertilizer, which is prepared through adding a composite bacterium agent and a physical light-conversion material into the biogas liquid, and the preparation method therefor. The novel digested-effluent organic liquid fertilizer disclosed by the invention contains the ingredients in parts by mass: 1,000 parts of digested effluent, 10-20 parts of three-acid mixture, 2.5-3.5 parts of the composite bacterium agent and 2.5-3.5 parts of the physical light-conversion material. According to the novel digested-effluent organic liquid fertilizer disclosed by the invention, a variety of physiologically-active nutrients are provided for plant growth, the site condition of soil is greatly improved, and meanwhile, the problem of secondary pollution resulting from the digested effluent is solved. The novel digested-effluent organic liquid fertilizer and the preparation method therefor are applied to the field of agricultural planting.
Owner:北京汉科财富科技有限公司
White packaging film for double-glazed photovoltaic module and preparation method thereof
ActiveCN105802548AIncrease profitImprove photoelectric conversion efficiencyNon-macromolecular adhesive additivesFilm/foil adhesivesMooney viscosityCarvacryl acetate
The invention discloses a white packaging film for a double-glazed photovoltaic module. The white packaging film comprises, by weight, 45-65 parts of ethylene-vinyl acetate, 25-50 parts of ethylene propylene rubber, 1-7 parts of white pigment and 0.5-10 parts of aids, wherein the ethylene-vinyl acetate comprises, by weight, 14-33% of vinyl acetate and 15-55% of ethylene propylene rubber; and the ethylene propylene rubber has a density of 0.80-0.91g / cm<3> and Mooney viscosity of 20-40. The dedicated white EVA film for the double-glazed photovoltaic module has high reflection rate, tenacity, volume resistivity and impact resistance, and the double-glazed photovoltaic module made of the film does not cause starved joints, bubbles or the like.
Owner:SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
Novel ZnO/Cu2O heterojunction photocatalytic material and preparation method thereof
ActiveCN106732617ANoveltyImprove photocatalytic performanceWater/sewage treatment by irradiationWater treatment compoundsMicro nanoHeterojunction
The invention discloses a novel ZnO / Cu2O heterojunction photocatalytic material and a preparation method thereof. According to the material, soluble copper salt is dissolved in 50 mL of deionized water, hierarchical ZnO micro-nano flowers are dispersed into the solution uniformly under magnetic stirring condition, then proper amount of sodium hydroxide and citric acid are added in sequence, the materials react in a water bath at 50 DEG C for 30 min, and a hierarchical ZnO micro-nano flower structure modified with rod-shaped Cu2O nanoparticles is obtained. The preparation technology of the novel ZnO / Cu2O heterojunction photocatalytic material is simple and convenient, expensive equipment is not involved, the product is novel in morphology and larger in specific surface area, response of ZnO in the visible light range is extended, furthermore, a built-in electric field produced in a heterojunction at a compound interface of the product can promote effective separation of photo-induced electron-holes remarkably and inhibit recombination of the photo-induced electron-holes, so that the photo-quantum efficiency is increased obviously, and excellent photocatalytic performance and cycle stability are shown.
Owner:ANHUI UNIV OF SCI & TECH
Flexible polymer solar cell with wrinkled structure and preparation method thereof
InactiveCN103219467BImprove the utilization rate of sunlightImprove photoelectric conversion efficiencySolid-state devicesSemiconductor/solid-state device manufacturingPolyethylene terephthalate glycolComposite film
Owner:PEKING UNIV
Visible light responsive NaFeTi3O8 photocatalytic material, preparation method and application thereof
ActiveCN105056956AVisible light response hasAbsorbs light in a wide range of wavelengthsMaterial nanotechnologyWater/sewage treatment by irradiationLength waveLight responsive
The invention discloses a visible light responsive NaFeTi3O8 photocatalytic material, a preparation method and application thereof. The molecular formula of the photocatalytic material is NaFeTi3O8. The photocatalytic material can be prepared by a high temperature solid state method or sol-gel method. The preparation method is simple, and the preparatory cost is low. The obtained NaFeTi3O8 powder has uniform particles and an average particle size of 80-100 nanometers, a wide absorption band in the scope of visible light wavelength, and good chemical stability, is economical and practical, can treat organic pollutants in water, and is a potential green and environment-friendly, and visible light responsive photocatalytic material.
Owner:徐州博创建设发展集团有限公司
Strontium titanate/titanium dioxide composite nano fibers and preparation method thereof
InactiveCN106868633AImprove photocatalytic activityImprove the utilization rate of sunlightInorganic material artificial filamentsMetal/metal-oxides/metal-hydroxide catalystsPhotocatalytic degradationFiber size
The invention relates to 100-200nm strontium titanate / titanium dioxide (rutile phase) composite nano fibers by means of a one-step electrostatic spinning method. The method is simple and high in operability. The obtained fibers are controllable in dimension, uniform in distribution and good in continuity. Compared with single TiO2 (rutile phase) and single SrTiO3, the photocatalytic activity of the prepared SrTiO3 / TiO2 (rutile phase) composite nano fibers is hugely improved and the SrTiO3 / TiO2 (rutile phase) composite nano fibers have an important application prospect in photocatalytic degradation of degradation-resistant organic pollutants such as methyl orange, methylene blue and rhodamine B.
Owner:台州市中元新材料有限公司
Novel multipurpose solar concentration system
ActiveCN103441177AReduce technical difficultyRealize comprehensive utilizationPhotovoltaic energy generationLight radiation electric generatorElectric generatorShort Waves
The invention relates to a novel multipurpose solar concentration system which is provided with a main reflecting mirror used for tracking the sun in real time, and a light splitting mirror used for concentrating sunlight between the main reflecting mirror and the focus of the main reflecting mirror. Sunlight is divided into two parts to apply by the light splitting mirror according to a spectrum. Short wave light is reflected by the light splitting mirror and is concentrated on a photovoltaic battery to carry out photovoltaic power generation, and redundant heat is utilized to provide hot water and heat and the like; or is concentrated on a light guide pipe for lighting. Long wave light is transmitted via the light splitting mirror and is concentrated on a photo-thermal receiver, and heat is transmitted to a thermal storage device via a working medium so that heat can be extracted when heat is needed, and an electric generator is driven by a heat engine to perform photo-thermal power generation or to provide hot water and heat and the like. A dividing wavelength of long wave light and short wave light is corresponding to the wavelength determined by a forbidden bandwidth of the photovoltaic battery. Sunlight energy comprehensive utilization which integrates multiple application modes as a whole is realized so that sunlight utilization rate is enhanced.
Owner:SHANGHAI NEW IND OPTOELECTRONICS TECH
Preparation method of photo-thermal material and application of photo-thermal material in water evaporation
InactiveCN111978592AReduce spreadImprove the utilization rate of sunlightGeneral water supply conservationEvaporationHeat lossesLight absorber
The invention relates to a preparation method of a light absorption-water delivery and heat insulation integrated photo-thermal evaporation material, and the light absorption-water delivery and heat insulation integrated photo-thermal evaporation material obtained by the preparation method. The invention also relates to application of the light absorption-water delivery and heat insulation integrated photo-thermal evaporation material in absorbing sunlight and generating heat to accelerate water evaporation. The light absorption-water delivery and heat insulation integrated photo-thermal evaporation material prepared by the method can solve the heat loss of water in the transportation process, so that the photo-thermal conversion rate is increased. The photo-thermal evaporation material provided by the invention can also solve the technical problem that: the stability of a device is reduced in that a light absorber is separated from a heat insulator.
Owner:YANCHENG INST OF TECH
Method for preparing anti-reflecting glass through acid corrosion
InactiveCN102795784AAchieving anti-reflectionImprove anti-reflection effectLight pollutionGreenhouse
The invention relates to a method for preparing anti-reflecting glass by an acid corrosion method from a Na2O-CaO-SiO2 system glass matrix. The method aims to reduce the surface reflectivity of glass for photovoltaic purpose, photo-thermal purpose, buildings greenhouses and decoration purpose and increase the transmissivity of the glass, thereby increasing solar utilization rate, improving photoelectric or photo-thermal conversion efficiency, enhancing vision sharpness and reducing light pollution. The purposes of the method are achieved by the following technical scheme: firstly, the glass matrix is put in a corrosion tank holding acidic solution and corroded in the corrosion tank; and after being taken out and cleaned, the glass matrix is put in a drying oven to be dried, thus the anti-reflecting glass is obtained. The method has the benefits that the cost is low, and the glass is good in anti-reflecting performance and high in transmissivity; and the transmissivity of the glass to the visible light can reach 97%.
Owner:SHANDONG JIANZHU UNIV
A sun tracking apparatus
In order to solve problems of existing sun tracking apparatuses that stabled performance, simple structures, low designs costs and maintenance costs can not be simultaneous satisfied, the invention brings forward a sun tracking apparatus comprising a support. The support comprises a supporting pedestal and a holder, wherein the holder is used for fixing solar energy utilization equipment. The sun tracking apparatus is characterized in that: the sun tracking apparatus also comprises a location detection assembly, a signal processing unit, a transmission assembly and a control motor. According to the sun tracking apparatus of the present invention, a cuboid casing body is employed to combine with a location detection photosensitive sensor to compose the location detection assembly, and advantages of properties such as a simple structure, low costs, high precision and good reliability are realized. In addition, a light intensity detection assembly is employed, purposes of intelligent energy saving in cloudy days or at night can be realized, so that meaningless losses are reduced; the economical efficiency is raised; electric energy can be effectively saved; and the utilization rate of sunshine can be raised. The apparatus is with a self-locking structure, and influences by outside forces such as wind are small.
Owner:泰州市海通资产管理有限公司
Organosilicone composition, reflecting coating, preparation method therefor and photovoltaic module comprising reflecting coating
ActiveCN106317894AImprove adhesionModerate bond strengthPhotovoltaic energy generationEpoxy resin coatingsCross linkerSilorane Resins
The invention relates to the field of preparation of photovoltaic cells and discloses an organosilicone composition, a reflecting coating, a preparation method therefor and a photovoltaic module comprising the reflecting coating. The organosilicone composition contains basic polymerization ingredients, a catalyst, a cross-linker and reflecting particles, wherein the basic polymerization ingredients, the catalyst and the cross-linker are not simultaneously mixed before use, the basic polymerization ingredients contain the ingredients in parts by weight: 100 parts of polymethyl siloxane, of which each molecule contains at least two Si-Vi bonds, 5-15 parts of hydrogenated epoxy resin or alicyclic epoxy resin modified hydroxyl-terminated polymethylvinylsiloxane and 10-20 parts of siloxane resin containing at least two Si-Vi bonds, and the cross-linker is polyorganosiloxane containing at least two Si-H bonds. According to the organosilicone composition, the adhesion of the reflecting coating can be improved while the curing time of the reflecting coating prepared from the organosilicone composition is shortened.
Owner:BYD CO LTD
Metal back electrode of flexible film solar cell and preparation method thereof
InactiveCN102403411AAdjustable velvet valueImprove reflectivityFinal product manufacturePhotovoltaic energy generationElectrical batteryThin membrane
The invention relates to a metal back electrode of flexible film solar cell and a preparation method thereof, which belong to the technical field of solar cell. The technical solution is that a metal back electrode with texture structure on the surface is directly prepared on a flexible substrate, and the method comprises the following technological steps of: (1) forming a concave-convex texture structure on the flexible substrate; and (2) depositing a metal film on a substrate with the concave-convex surface structure as the metal back electrode of the flexible cell. The method for preparing the flexible film solar cell by using the texture metal back electrode has the following advantages that: 1) the surface structure of the back electrode can be adjusted by changing microparticle size and interval, which is convenient, flexible and favorable for realizing optimization of technological parameters; 2) the metal back electrode has high reflection rate, and can improve utilization rate of sunlight and improve efficiency of the solar cell; and 3) the sunlight has high optical distance in the cell, so thickness of absorption layer of film battery can be reduced, production time can be shortened, production cost can be reduced and production efficiency is improved.
Owner:BAODING TIANWEI GRP CO LTD
Method for preparing antireflection glass with alkaline corrosion method
ActiveCN102786228AAchieving anti-reflectionImprove anti-reflection effectLight pollutionPhotothermal conversion
The invention relates to a method for preparing an antireflection glass with an alkaline corrosion method through a Na2O-CaO-SiO2 system glass base, and aims to reduce reflectivity of a photovoltaic glass surface, a photo-thermal glass surface, a building glass surface, a room temperature glass surface and a decorative glass surface, and increase the transmittance, so as to increase a sunlight utilization rate, improve photoelectric or photo-thermal conversion efficiency, improve visual definition, and reduce light pollution. The purpose of the invention is achieved by the technical scheme that: placing a glass base body into an alkaline solution corrosion tank to be corroded; taking out, and cleaning, and then placing into an oven to be parched to obtain an antireflection glass. The method has the beneficial effects of low cost, good antireflection performance of the glass, high transmittance, and has a visible light transmittance of over 97%.
Owner:SHANDONG JIANZHU UNIV
Light wave conversion-antireflection difunctional sol material and preparation method of thin film thereof
The invention discloses a light wave conversion-antireflection difunctional sol material and a preparation method of a thin film thereof. The molecular formula of the disclosed light wave conversion-antireflection difunctional sol material is Am,Bn:SiO2; when A is Tb<3+>, B is Zn<2+>, m is more than or equal to 0.2% and less than or equal to 0.6%, n is more than or equal to 0.2% and less than or equal to 0.8%; or B does not exist, m is more than or equal to 0.2% and less than or equal to 0.6%; when A is Eu<3+>, B is Al<3+>, m is more than or equal to 0.1% and less than or equal to 0.5%, and n is equal to 0.4%. The preparation method of the thin film of the light wave conversion-antireflection difunctional sol material comprises the steps of adding soluble rare-earth salts and / or soluble metal salt into a mixed solution of tetraethoxysilane, absolute ethyl alcohol and deionized water, and coating a film on the surface of glass through sol subjected to hydrolytic polycondensation and ageing by a pulling method, and the dried and annealed wet film has the functions of light wave conversion and antireflection. The effects of light wave conversion and antireflection are achieved by controlling the refractive index and the thickness of the thin film through the preparation processes of regulating the additive amount of a solvent of a precursor solution, the varieties and mixing amount of metal and rear-earth salts, the pulling rate, and the amount of layers of the film.
Owner:NORTHWEST UNIV(CN)
Active light collection and heat storage type sunlight greenhouse
PendingCN110024593AIncrease the amount of daylightImprove light uniformityClimate change adaptationGreenhouse cultivationGreenhouseControl system
The invention provides an active light collection and heat storage type sunlight greenhouse, which comprises a combined framework, a wall heat preservation material, an elevation-adjustable back roofand a solar active heat storage and release system. One side, facing a light collection roof, of the elevation-adjustable back roof is provided with a reflector. One end of the elevation-adjustable back roof is hinged to a back wall, and the elevation of the back roof is regulated by a control system to realize active light collection and secondary reflective light collection. The solar active heat storage and release system comprises a solar collector, a hot water storage tank, a water feeding pipe, a water return pipe and a submersible pump, the solar collector is positioned on the inner side of the back wall, and a heat collecting surface faces the light collection roof. The active light collection and heat storage type sunlight greenhouse has advantages that by active sunlight collection, the sunlight utilization capacity is increased; by active heat storage and release, light collection and heat preservation performances of the sunlight greenhouse can be improved, uniformity of alight environment is improved, and annual efficient production of the sunlight greenhouse is benefited.
Owner:甘肃省农业科学院蔬菜研究所
Full-spectrum response double-doped lanthanum fluoride/attapulgite upconverting composite photocatalytic material and preparation method and application thereof
ActiveCN109158117AReduce compoundingBroaden the photoresponse rangePhysical/chemical process catalystsWater/sewage treatment by irradiationMicrowaveLight irradiation
The invention belongs to the field of photocatalytic materials, and particularly relates to a double-doped lanthanum fluoride / attapulgite upconverting composite photocatalytic material and a preparation method and application thereof. The preparation method comprises the following steps: adding La(NO3)3.6H2O, Tm(NO3)3.6H2O, Yb(NO3)3.5H2O, NH4F and hydrochloric acid-modified ATP into deionized water respectively for dissolving, magnetically stirring for 30min for fully mixing, and adjusting the pH value of a system to 4-5; then, transferring to a microwave hydrothermal kettle for a reaction, reacting for 1-2h at the set power of 400W and the set temperature of 160-200 DEG C, centrifuging a prepared sample, washing by using deionized water, then drying the sample, and grinding to obtain a ytterbium-doped and thulium-doped lanthanum fluoride / attapulgite upconverting composite photocatalytic material. The composite photocatalytic material is applied to simulation of photocatalytic gasolinedenitrification, and the denitrification rate can reach 85% after 3h light irradiation.
Owner:CHANGZHOU UNIV
Pt/silicon nanometer array structure composite material and preparation method thereof
InactiveCN103464146AIncreased out-of-phase migration rateReduce compoundingMaterial nanotechnologyCatalyst activation/preparationElectrochemistryNanometre
The invention discloses a Pt / silicon nanometer array structure composite material and a preparation method of the Pt / silicon nanometer array structure composite material. Pt of the Pt / silicon nanometer array structure composite material is in the shape of a cluster, a silicon nanometer array is in the shape of regular holes or wires, and the Pt is located at the top end of the silicon nanometer array. According to the preparation method of the Pt / silicon nanometer array structure composite material, a microstructure of the material is controlled by adjusting electrochemical parameters, metal is deposited with a VSTEP method, therefore, the transfer speed of photo-generated carriers is increased, generation of defects is reduced, the photoelectric conversion efficiency is improved, and the utilization rate of solar energy is enhanced.
Owner:CHONGQING UNIV
Movable solar cell charging pile
InactiveCN104467114AImprove the utilization rate of sunlightEasy to movePV power plantsElectric powerElectrical batteryElectric energy
The invention relates to a movable solar cell charging pile which comprises a framework, a solar cell module, a photo-voltaic controller, a storage battery, a power supply unit and a moving unit. The solar cell module is installed on the framework. The photo-voltaic controller and the storage battery are contained in the framework. The power supply unit is used for supplying power to equipment. The moving unit is installed on the framework to make the charging pile move. Light energy is converted into electric energy through the solar cell module, then the electric energy is stored in the storage battery through the photo-voltaic controller, and the electric energy stored in the storage battery supplies power through the power supply unit. The charging pile can be moved everywhere conveniently, and is high in efficiency at various angles and in various directions.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Thin film solar cells and preparation methods thereof
ActiveCN109713132AReduce lossesImprove energy conversion efficiencySolid-state devicesSemiconductor/solid-state device manufacturingHole transport layerMetal electrodes
The invention provides thin film solar cells and preparation methods thereof. The thin film solar cell includes a transparent electrode, an electron transfer layer, a perovskite light absorbing layer,a hole transport layer, and a metal electrode which are sequentially are arranged in a laminated manner, wherein the transparent electrode is provided with multiple grooves disposed at intervals. Through arrangement of the grooves in the battery, light absorption of the transparent electrode can be inhibited, and at the same time, obvious resistive loss can not be produced, thereby being capableof improving the utilization rate of sunlight, and the energy conversion efficiency of the battery is improved.
Owner:WUXI UTMOST LIGHT TECH CO LTD
Novel self-illuminating solar advertising plate system capable of generating electricity
InactiveCN102646377AImprove power generation efficiency and sunlight utilizationImprove power generation efficiencyPhotovoltaic energy generationIlluminated signsElectricityEngineering
The invention relates to a novel self-illuminating solar advertising plate system capable of generating electricity. The system consists of a transparent thin film solar battery panel and a rare-earth ternary to hexahydroxy compound layer which is plated on the surface of the solar battery panel, wherein infrared light is converted into visible light through the rare-earth ternary to hexahydroxy compound layer; and the visible light is irradiated onto the transparent thin film solar battery panel to generate electricity. According to the self-illuminating solar advertising plate system capable of generating electricity, the infrared light which penetrates through the transparent thin film solar battery panel and is wasted previously is converted into the visible light through the rare-earth ternary to hexahydroxy compound layer, the visible light can be used for generating electricity, and the corresponding pattern can be displayed according to the outline of the plated rare-earth ternary to hexahydroxy compound layer, so that the generating efficiency and the sunlight utilization rate of a transparent thin film solar battery are greatly improved, and the self-illuminating solar advertising plate system can serve as an advertising plate.
Owner:张一熙
Two-degree-of-freedom photovoltaic power generation device for automatically tracking sunlight and tracking method
PendingCN108400765ASimplify the operation processImprove the utilization rate of sunlightPhotovoltaic supportsControl using feedbackTwo degrees of freedomSelf locking
The invention discloses a two-degree-of-freedom photovoltaic power generation device for automatically tracking sunlight and a tracking method. The problem of single position of the battery panel is overcome as the solar panel is capable of tracking the position of the sun. At the beginning, the device is initialized, a photosensitive element provides the collected data to a single chip, the single chip receiving the data signal runs the program and controls a first stepping motor and a second stepping motor that are electrically connected to make the worm and the second worm rotate to drive the transmission main shaft to rotate, so that the solar panel rotates and can receive the maximum illumination. The stepping motor and worm gear set used by the invention for angle adjustment is capable of realizing precise angle control and self-locking of the corresponding rotation direction, and preventing the orientation of the solar panel from being arbitrarily changed due to external force factors. The photosensitive member of the invention is capable of accurately determining the direction of the sun light and automatically adjusting the orientation of the solar panel to be the same asthe direction of the sunlight.
Owner:ANHUI UNIV OF SCI & TECH
Preparation method and application of tungsten sulfide quantum dot and noble metal nanoparticle co-modified bismuth oxybromide composite material
PendingCN113926473AEnhanced sunlight utilization and light quantum efficiencyUniform productPhysical/chemical process catalystsWater/sewage treatment by irradiationPhoto catalysisSulfide
The invention relates to a preparation method and application of a tungsten sulfide quantum dot and noble metal nanoparticle co-modified bismuth oxybromide composite material, and belongs to the technical field of photocatalysts. The preparation method comprises the following steps: preparing bismuth oxybromide with the uniform size from bismuth nitrate and potassium bromide through a solvothermal method; adding bismuth oxybromide into a noble metal salt solution, and reducing to obtain noble metal loaded bismuth oxybromide; pretreating tungsten sulfide to obtain a tungsten sulfide quantum dot solution; and adding the noble metal-loaded bismuth oxybromide into the tungsten sulfide quantum dot solution, and stirring at room temperature to obtain the tungsten sulfide quantum dot and noble metal nanoparticle co-modified bismuth oxybromide composite material. The tungsten sulfide quantum dot and noble metal nanoparticle co-modified bismuth oxybromide composite photocatalyst prepared by the invention has good performance in the aspect of photodegradation of organic pollutants, can be widely applied to the fields of removal of organic pollutants in catalytic wastewater, reduction of heavy metal ions and the like, and greatly widens the application range of bismuth oxybromide and tungsten sulfide.
Owner:INST OF APPLIED CHEM JIANGXI ACAD OF SCI
MoO3-x nanobelt material regulated and controlled by one-dimensional plasma resonance absorption and application thereof
InactiveCN111704167AImprove the utilization rate of sunlightStrong light absorption performanceGeneral water supply conservationWater/sewage treatmentOxygen vacancyPolyethylene glycol
The invention relates to a MoO3-x nanobelt material for one-dimensional plasma resonance absorption regulation and control and an application thereof. The material comprises a one-dimensional MoO3-x (x is greater than less than1) nanobelt with an oxygen vacancy defect and a carrier for loading the nanobelt. The macromolecules such as PEG (polyethylene glycol) are used as a surface protection ligand and a weak reducing agent, the oxygen defect state MoO3-x is obtained through reduction, meanwhile, the one-dimensional strip-shaped morphology is kept, and strong plasma absorption matched with sunlight in the full spectrum range is obtained by means of oxygen vacancy defects and MoO3-x nanoribbons; and the one-dimensional MoO3-x nanobelt with plasma absorption is dispersed in deionized water to obtain a dispersion liquid, then loading the dispersion liquid on the surface of the carrier, and drying is carried out to obtain the MoO3-x nanobelt photocatalyst. The MoO3-x nanobelt material hashigh water evaporation efficiency and long cycle life, and has great application value in the fields of sea water desalination, sewage purification and the like.
Owner:SHANDONG UNIV
Preparation method of titanium oxide film and titanium oxide film
The invention provides a preparation method of a titanium oxide film and a titanium oxide film. The preparation method comprises the following steps: 1) preparation of titanium oxide precursor; and 2) film coating and after-treatment. The preparation method is simple in preparation technique and can implement large-scale production.
Owner:卜艳茹
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