205 results about "Light conversion efficiency" patented technology

The invention provides an omni-directional following type reversing support which comprises a supporting assembly, an adjusting assembly and a protection assembly, the supporting assembly is composed of a stand column, a transmission shaft is arranged on the side wall of the top of the stand column, the surface of the transmission shaft is movably sleeved with a sleeve, a linkage mechanism is arranged in the top end of the stand column, and the adjusting assembly is composed of a transverse plate and a photovoltaic plate. The bottom of the photovoltaic panel is connected with the transverse plate through a rotating frame, the rotating shaft is rotationally connected with the interior of the annular plate, the protection assembly is composed of a fixing base, a gear ring is arranged in the fixing base, and one end of the supporting plate is fixedly connected with a connecting gear. The angle of the photovoltaic panel is adjusted in a double-shaft adjusting mode, the omni-directional following function is achieved to improve the light conversion efficiency as much as possible, transmission with the adjacent reversing supports is achieved, synchronous control over the angles of the supports in the same row is achieved through connection of the sleeves, and synchronous control over the multiple supports is achieved; the driving mechanism can be used for driving the supporting plate to rotate and supporting the two sides of the photovoltaic panel, and the use strength of the reversing support is improved.

The embodiment of the invention relates to the field of photovoltaic technology, and provides a solar cell and a preparation method thereof, the solar cell comprises a substrate, the substrate is provided with a first surface and a second surface which are opposite, at least one of the first surface and the second surface is provided with a suede, the suede is composed of a plurality of pyramid structures, and the side wall of at least part of the pyramid structures is provided with a wrinkle part; the wrinkle part is composed of a plurality of scaly protrusions, in the direction from the top of the pyramid structure to the bottom of the pyramid structure, the length of the wrinkle part is a first length, the length of the side wall of the pyramid structure is a second length, and the ratio of the first length to the second length is larger than or equal to 0.5. According to the solar cell and the preparation method thereof provided by the embodiment of the invention, the light reflectivity of the solar cell is at least reduced, so that the light conversion efficiency of the solar cell is improved.

The invention provides an atypical MOPA fiber laser device integration device, system and method. The device comprises an optical resonant cavity, a first device group and a second device group, wherein the first device group comprises a first amplification stage gain optical fiber, a first reverse pumping beam combiner, a first pumping source and a first cladding light stripper, and the second device group comprises a second amplification stage gain optical fiber, a second reverse pumping beam combiner, a second pumping source and a second cladding light stripper; the optical resonant cavity is used for receiving the pump light transmitted by the first amplification stage gain optical fiber and the second amplification stage gain optical fiber, transmitting the pump light which is not absorbed to the second amplification stage gain optical fiber and the first amplification stage gain optical fiber, and generating signal light under the action of the absorbed pump light; and the signal light is transmitted to the first amplification stage gain fiber and the second amplification stage gain fiber in positive and negative directions. The device number and the manufacturing cost are remarkably reduced, the light-to-light conversion efficiency and the system reliability are improved, and meanwhile high-power beam combination and miniaturization integration are facilitated.

According to the laser chip capable of inhibiting in-plane amplified spontaneous emission, the first inclined edge and the second inclined edge are designed, opposite edges parallel to the first cleavage edge and the second cleavage edge respectively are damaged, a first parasitic cavity and a second parasitic cavity existing in a natural cleavage laser chip are eliminated, and the laser chip can inhibit in-plane amplified spontaneous emission. Therefore, the formation of in-plane amplified spontaneous emission of the laser chip is remarkably inhibited, meaningless consumption of carriers in a laser emission layer in the laser chip is prevented, the luminous efficiency of the laser chip on laser wavelength can be improved, the light-light conversion efficiency of the laser from pump light to emission laser is improved, and the output power of the laser is finally improved. And secondly, due to the suppression of amplified spontaneous radiation in a laser chip plane and the improvement of the light-light conversion efficiency of the laser, the power consumption of the laser can be obviously reduced under the condition of certain output power, the operation cost of the laser is reduced to a certain extent, and the cost performance of the laser is improved.

The invention provides an automatic device and method for light emitting and power optimization of 2-micron solid laser. The automatic device comprises a laser pumping source, a plano-convex lens group, a gain medium, a confocal resonant cavity, an output coupling mirror, a five-degree-of-freedom electric displacement table and a regulation and control system. Automatic optimization and stable output of laser power are realized through the design of an asymmetric confocal resonant cavity and micron-order adjustment of a high-precision five-degree-of-freedom electric displacement table in combination with a tolerance optimization algorithm and a gradient descent spiral search algorithm. A thulium-doped CYA disordered crystal is adopted as a gain medium, and the angle of the thulium-doped CYA disordered crystal is adjustable so as to excite a high-order vortex The transmittance of the output coupling mirror is dynamically adjusted according to the working mode, and the intra-cavity power density and the light-to-light conversion efficiency are ensured. The invention has the advantages of high efficiency and stability, strong universality, low cost, diversified output and the like, is suitable for the fields of space communication, quantum optics, laser processing and the like, and obviously improves the performance and application range of the laser.

The invention discloses a heterojunction agricultural light conversion film, and belongs to the technical field of agricultural light conversion films, and the heterojunction agricultural light conversion film comprises the following steps: 1, weighing raw materials CsCl, MnCl2 (H2O) 4 and SbCl3 according to the stoichiometric ratio of each element, putting the weighed raw materials into an agate mortar, adding deionized water, mixing and grinding, taking out the raw materials, and carrying out vacuum sealing and packaging; and 2, fully mixing the heterojunction luminescent material obtained in the step 1 with Ecoflex-0030 silica gel in proportion, pouring the mixture into a special mold, baking in a drying box, and demolding to obtain the heterojunction agricultural light conversion film. According to the heterojunction agricultural light conversion film with the structure, the obtained light conversion film can effectively utilize solar energy, can improve the light conversion efficiency and is harmless to the environment. Meanwhile, due to the formation of the heterojunction, the red orange light emission intensity of the material is improved, and the growth and development of plants and the accumulation of organic matters are promoted.

The invention belongs to the field of solar cell materials, and provides a compound A capable of being used as a light conversion agent, a light conversion adhesive film containing the compound A and a preparation method and application of the light conversion adhesive film. The compound A is used for the light conversion adhesive film, so that the light conversion efficiency of the light conversion adhesive film can be improved, and the absorption wavelength of the light conversion adhesive film can be regulated and controlled.

The invention provides aluminum paste overprinted on a BC battery silver grid line, a preparation method of the aluminum paste and the BC battery grid line, and belongs to the technical field of BC batteries. The aluminum paste comprises 65-90 parts by mass of aluminum powder; 2-10 parts by mass of glass powder; 2-5 parts by mass of an organic resin; 10-20 parts by mass of a solvent; 0-2 parts by mass of an additive; wherein the glass powder adopts bismuth-boron glass powder with the softening point of 400-500 DEG C. By adopting the bismuth-boron glass powder with low softening point temperature, silver-aluminum alloy is reduced during sintering at the medium-high temperature of 580-630 DEG C, the silver-aluminum lap resistance is reduced, the low composite level of the grid line is ensured, the electrical property of the grid line is improved, the replacement of silver paste by aluminum paste in a BC battery is realized while the light conversion efficiency is high, and the cost is reduced.

The present invention relates to a coating composition for forming a UV light conversion coating for a photovoltaic cell, a UV light conversion coating prepared therefrom, a method for preparing the UV light conversion coating, and a photovoltaic cell and a photovoltaic module comprising the coating. The composition comprises by mass: (A) 100 parts of a first epoxy resin that is liquid at room temperature, which is an epoxy resin containing at least two glycidyl ether groups per molecule on average; (B) 33-66 parts of a second epoxy resin that is liquid at room temperature, which is an alicyclic epoxy resin containing at least two epoxy cycloalkyl groups per molecule on average; (C) 33-66 parts of a vinyl ether monomer that is liquid at room temperature; (D) 6-16 parts of a cationic initiator; (E) 3-15 parts of a UV light conversion agent; and (F) 0-200 parts of an inert diluent. The light conversion coating prepared by the coating composition can reduce the UV band light transmittance and increase the visible light wavelength transmittance when used in a photovoltaic cell or a photovoltaic module, improve the light conversion efficiency and have excellent adhesion and aging resistance.

The invention provides a benzotriazole derivative and a resin composition containing the benzotriazole derivative. The benzotriazole derivative is of a 1H-site substitution type, and compared with a traditional 2H-site substitution type benzotriazole derivative light conversion material compound, the 1H-site substitution benzotriazole compound can remarkably improve the light conversion efficiency of a solar cell, especially the light conversion efficiency of the solar cell with a TOPCon photovoltaic module.

The invention provides a low-cost ytterbium-doped Yb calcium silicate niobium aluminum gallium laser crystal and a preparation method and application thereof. According to the invention, Al < 3 + > is introduced to replace 50% Ga < 3 + >, Yb < 3 + > ions are doped, and the Yb: Ca3NbAl < x > Ga < 3-x > Si2O14 laser crystal (0lt; xlt; and 3) the raw material cost is greatly reduced, the growth period is shortened, the laser performance of the crystal is improved, the absorption cross section and the emission cross section of the crystal are increased, the half-peak width of absorption and emission peaks is broadened, the oblique efficiency and the light conversion efficiency of continuous laser output are further improved, the laser threshold value is reduced, and watt-level continuous laser output is obtained.

The present invention belongs to the technical field of functional films, and particularly relates to a UV-protection PVB composite film, a preparation method therefor, and the use thereof. The UV-protection PVB composite film comprises an EVA / PVB composite film formed by an EVA film and a PVB film, wherein an ultraviolet light conversion layer is provided between the EVA film and the PVB film, the EVA film contains an ultraviolet light conversion agent, the PVB film contains an ultraviolet light absorber, and the ultraviolet light conversion layer is formed by coating with a transparent ultraviolet light conversion coating, and contains the ultraviolet light conversion agent, perhydropolysilazane, α-Al2O3 and a solvent. The ultrathin inorganic ultraviolet light conversion layer is designed which uses the perhydropolysilazane as a film-forming substance and the α-Al2O3 as a dispersion aid, and therefore exhibits excellent dispersibility, transparency and durability, thus reducing the use amount of light conversion agents, improving the light conversion efficiency, and solving the problem that light conversion agents added to EVA films are difficult to disperse and thus cannot achieve effective light conversion.

An ultraviolet-irradiation-resistant high-efficiency photovoltaic module belongs to the technical field of photovoltaic equipment, solves the technical problem of insufficient light conversion efficiency of photovoltaic modules, and adopts the technical scheme that two groups of photovoltaic modules are symmetrically arranged on the surfaces of the upper side and the lower side of a battery piece, and the two groups of photovoltaic modules and the battery piece are packaged into a whole; a nano-metal low-radiation film, a photovoltaic glass plate, a one-way light-transmitting film, a composite light conversion adhesive film (including a lower conversion adhesive film and an upper conversion adhesive film), an ultraviolet scattering film, an infrared shielding adhesive film and an ultraviolet cut-off film are sequentially arranged in each group of photovoltaic modules in an overlapping manner from the surface layer to the inner layer. The solar cell module not only can protect the cell from being irradiated by infrared rays and ultraviolet rays and prolong the service life of the cell, but also can prolong the propagation path of the ultraviolet rays and the infrared rays in the module, reduce light loss, prevent the light conversion efficiency from being reduced due to temperature rise and improve the power generation efficiency.

The invention relates to the technical field of photovoltaic cells, and provides a solar cell and a preparation method thereof, the solar cell comprises a silicon substrate and a transparent conductive film, the transparent conductive film is provided with a periodic nanostructure array, and the solar cell also comprises a metal electrode arranged on the surface of the transparent conductive film, the metal electrode is prepared by adopting copper electrode slurry and a laser process. The periodic nanostructure array modified layer is prepared on the conductive thin film, so that the surface area and the conductivity of the transparent conductive thin film can be increased, the absorption and reflection of the transparent conductive thin film to light are improved, and the efficiency of the solar cell is improved; and the binding force of the electrode can be increased, and the durability and the stability of the solar cell are improved. According to the preparation method of the solar cell provided by the invention, the position of the copper electrode can be precisely processed, the problem of precision of current silk-screen printing is solved, the damage to the amorphous silicon layer can be avoided, the prepared copper electrode has a relatively large height-width ratio, and the light conversion efficiency can be effectively improved.

The utility model relates to a light storage and charging integrated system, which comprises a truss, a photovoltaic control module, an energy storage module, an inversion boosting module, a transformation rectification module, a charging pile, a distribution management module and a power grid, the distribution management module inverts, boosts and grids redundant electric quantity in the energy storage module, and when the power supply of the energy storage module is insufficient or the power consumption is underestimated, the distribution management module supplies the alternating current in the power grid to the energy storage module and the charging pile after voltage transformation and rectification. According to the optical storage and charging integrated system, the photovoltaic control module is used for controlling the movable photovoltaic panel base and the support to adjust the inclination angle of the photovoltaic panel according to the change of the solar elevation angle, so that the angle of sunlight irradiating the photovoltaic panel is enlarged, the light conversion efficiency is improved, and the power generation ratio of photovoltaic power generation in the optical storage and charging integrated system is improved.

The invention discloses a bending-resistant all-solid-state anti-resonance optical fiber with a double-cladding structure. The radial section of the bending-resistant all-solid-state anti-resonance optical fiber sequentially comprises a fiber core, an anti-resonance unit, a bending-resistant unit and a cladding unit from inside to outside, the anti-resonance unit comprises a plurality of anti-resonance rings which are uniformly distributed along the periphery of the fiber core in the circumferential direction, and each anti-resonance ring is tangent to the fiber core; the anti-bending unit comprises a plurality of anti-bending round bars, and any anti-bending round bar is located on the outer side of every two adjacent anti-resonant rings and does not make contact with the anti-resonant rings. According to the all-solid-state anti-resonant optical fiber, through reasonable arrangement of component structures, the limiting loss of a fundamental mode in a bending state is reduced, meanwhile, a high high-order mode rejection ratio is kept, the utilization efficiency of a traditional all-solid-state anti-resonant optical fiber on pump light is improved, and the light-light conversion efficiency of high-power optical fiber laser can be further improved.

The invention discloses a self-adaptive control method for a fire-fighting emergency lamp, and relates to the technical field of illumination control, and the method comprises the steps: arranging a fire-fighting emergency lamp group with ceramic fluorescent powder, generating visible light with a predetermined color through blue laser excitation, and achieving nS-level fiber breaking control through the chromatographic reflection of the visible light, carrying out attenuation prediction and identification on the light conversion efficiency of the lamp in combination with a generative adversarial network; a building three-dimensional model is generated through simulation, a lamp identifier is mapped into the model, fixed-point optimization control analysis of the lamp is executed, laser parameters are dynamically adjusted, and self-adaptive regulation and control of emergency lighting of a target building are achieved. The technical problems that an existing fire-fighting emergency lighting system has electrical fire hazards and is insufficient in anti-interference capability and emergency response capability are solved, and the technical effects that the intrinsic safety, the anti-interference capability and the emergency response capability of the emergency lighting system are improved through dynamic optimization of the photoelectric separation technology and the generative adversarial network are achieved.

The invention relates to the technical field of photovoltaic cells, and provides a laser processing device, a method for preparing a metal electrode and a photovoltaic cell. According to the laser processing system, remelting and solidification are carried out while selective metallization is carried out, the internal stress of the electrode is released while the adhesive force is increased, and the porosity can be effectively reduced; in addition, the technological process can be simplified, the problem that the secondary machining position is difficult to calibrate is solved, and the machining efficiency is improved. According to the method for preparing the metal electrode, the position of the copper electrode can be precisely machined, the problem of precision of current silk-screen printing is solved, damage to the amorphous silicon layer can be avoided, the prepared copper electrode has the large height-width ratio, and the light conversion efficiency can be effectively improved.

An eyewear display device implements a curved lightguide to form an intermediate image between an incoupler and an outcoupler. The curved lightguide produces an approximately 20-degree diagonal field of view (FOV) full-color display having approximately 10% red, blue, green efficiency with uniform color and luminance for a micro-display at a temple of an eyewear display device. The curved lightguide incorporates freeform mirror incouplers and / or outcouplers and color-corrected relay optics. Using an intermediate image stage in the optical pathway allows for use of a compact incoupler that does not exceed a thickness of the curved lightguide.

The invention relates to the technical field of sewage treatment, in particular to modified manganese sand and a preparation method and application thereof in sewage treatment. The preparation method comprises the following steps: preparing g-C3N4 powder by taking urea as a precursor; the preparation method comprises the following steps: adding g-C3N4 into pure water, and carrying out ultrasonic treatment to obtain a g-C3N4 suspension; manganese sand is added into the g-C3N4 turbid liquid, magnetic stirring and heating are carried out, and a mixture containing modified manganese sand is obtained; and washing, drying and grinding the mixture to obtain the modified manganese sand. The preparation method disclosed by the invention is simple, mild in reaction condition and free of environmental pollution. The composite material prepared by the method can be simultaneously subjected to adsorption treatment and photocatalysis treatment in the water treatment process. MnO2 in the manganese sand promotes transfer and separation of free charges of g-C3N4, so that the light conversion efficiency of g-C3N4 is improved, the treatment effect on sulfonamide compounds is improved, and the purpose of removing pollution in water more efficiently is achieved.

The invention discloses a laser beam combining device and method, the laser beam combining device comprises a plurality of laser units, a wave locking assembly and a beam combining assembly, and the laser units are used for outputting light beams; the wave locking assembly comprises a beam splitter and a grating, the grating is arranged at the reflecting end of the beam splitter, a light beam output by the laser unit is emitted to the beam splitter, and wavelength locking is carried out through the grating; the beam combining assembly is used for combining the light beams output by the wave locking assembly in pairs step by step until the light beams output by all the laser units are combined into one beam; the beam combining assembly comprises a polarization state conversion device, a reflecting mirror and a polarization beam combining device, the polarization state conversion device is used for adjusting the polarization direction of the light beams, and the reflecting mirror is used for adjusting the light paths of the light beams so that the two light beams in the same group can enter the polarization beam combining device; and the polarization beam combining device is used for combining the two light beams subjected to polarization direction and light path adjustment. The light-to-light conversion efficiency is high, the light spot brightness after beam combination is improved, and the light beam quality is improved.

This invention discloses a method for enhancing and controlling the radiation of an LPP-EUV light source based on dual-pulse spatiotemporal co-constraint, belonging to the field of semiconductor manufacturing technology. This invention obtains a spatiotemporal reference by real-time monitoring of a liquid metal droplet, uses a pre-pulse laser to induce target material deformation into a fogged target cloud, and combines high-speed imaging and a hydrodynamic model to predict the time and coordinates of the target cloud's energy absorption peak. It dynamically adjusts the delay time and optical axis direction of the main pulse laser to achieve dual-pulse spatiotemporal co-constraint, and constructs a closed-loop control system through a recursive least squares algorithm with a dynamic forgetting factor. This invention effectively improves the extreme ultraviolet light conversion efficiency, controls the power fluctuation of the light source within ±0.5%, and extends the maintenance cycle of optical components by 2 times. It can be widely applied to next-generation high-power extreme ultraviolet lithography light source systems, meeting the application requirements of semiconductor miniaturization processes.

The invention discloses a photovoltaic power station irradiance component calculation method and device. According to the method, environmental parameters and multiple groups of historical operation data of a photovoltaic power station are obtained firstly, and then target historical operation data with corresponding slope clear sky irradiance and power actual value correlation meeting preset conditions are screened out according to the environmental parameters and the multiple groups of historical operation data. And finally, exhaustion of a light conversion efficiency prediction value is carried out based on the target power actual value and the target direct light conversion efficiency and the target scattered light conversion efficiency corresponding to the target timestamp, and when the residual error between the prediction power corresponding to the prediction value and the target power actual value is minimum, the target power actual value is obtained. And determining a clear sky irradiation direct component predicted value and a clear sky irradiation scattering component predicted value corresponding to the predicted light conversion efficiency as a clear sky irradiation direct component actual value and a clear sky irradiation scattering component actual value of the target timestamp. The difference between the conversion efficiency of the direct light and the conversion efficiency of the scattered light is fully considered, and the accuracy of irradiance component calculation is effectively improved.

A quantum-dot light conversion film, a preparation method and an application thereof and an anti-ultraviolet blue-free yellow light for chip manufacturing are provided. The preparation method includes: (1) mixing a quantum-dot concentrate with an acrylic monomer, then adding high polymer for secondary mixing, to obtain a polymer; (2) after mixing the polymer and nanoparticles, adding additives for dispersion to obtain a light conversion liquid resin; and (3) coating and curing the light conversion liquid resin to obtain a quantum-dot light conversion film. The light conversion film has high light conversion efficiency, adjustable emission peak position and narrow half peak width. Its surface forms a tightly arranged high refractive index microlens structure. When the light reaches the microlens array, as the light output surface is a lens structure and the refractive index is improved, more light is emitted in the positive direction, thereby effectively improving the light output rate.

The present application relates to a manufacturing method of an LED light-emitting device and an LED light-emitting device manufactured by this manufacturing method, and relates to the technical field of semiconductor packaging, including: providing a substrate and an LED chip. On the premise that the LED chip is mounted on the substrate, a first transparent encapsulant is coated along the substrate, and the first transparent encapsulant wraps the light-emitting surface of the LED chip; the first transparent encapsulant is baked for the first time to semi-cure the first transparent encapsulant; phosphor is sprayed onto the semi-cured first transparent encapsulant so that the particle density of the phosphor increases in the direction of the top surface away from the light-emitting surface of the LED chip. The present application has the effects of higher light-emitting efficiency, higher light conversion efficiency, and better light color performance of the LED chip.

The invention discloses a high-efficiency optical parametric oscillator, and belongs to the technical field of lasers, the high-efficiency optical parametric oscillator comprises a pumping source output assembly, a coupling system, a first resonant cavity mirror and a nonlinear crystal which are sequentially arranged along the direction of an optical path, a dispersion prism is arranged at a light outlet of the nonlinear crystal, and the dispersion prism can divide light into signal light and idler frequency light; the dispersion prism and the light source are transmitted along a first light path and a second light path respectively, a second resonant cavity mirror is arranged on the first light path, an optical parameter adjusting assembly is arranged between the dispersion prism and the second resonant cavity mirror, and a third resonant cavity mirror is arranged on the second light path. According to the high-efficiency optical parametric oscillator provided by the invention, the light-light conversion efficiency and high light beam quality of parametric light can be simultaneously obtained under different power pumps under the conditions of not changing a cavity type structure and not needing to be reassembled and adjusted under the different power pumps.

The invention discloses a quantum cutting adhesive film, a solar cell and a preparation method of the quantum cutting adhesive film, belongs to the technical field of solar cells, and overcomes the defects that in the prior art, a process of introducing a down-conversion material into the solar cell can pollute the environment, can reduce the stripping force of an assembly and is poor in light conversion efficiency gain effect. The preparation method of the quantum cutting adhesive film comprises the following steps: step 1, mixing and granulating raw materials required for synthesizing quantum cutting quantum dots with a plastic material respectively to obtain master batches containing corresponding raw materials; and 2, mixing the master batches of the quantum cutting quantum dots, and molding to obtain the quantum cutting adhesive film. The quantum cutting quantum dots are directly synthesized in the adhesive film, so that introduction of a quantum cutting quantum dot coating in the process of preparing the solar cell is avoided, and reduction of the stripping force of the module is avoided.

This invention discloses a YAG-based composite laser ceramic and its preparation method. The composite laser ceramic has a five-layer structure from top to bottom: a microstructured concave YAG transparent ceramic, an Nd:YAG transparent ceramic, a YAG transparent ceramic I, a Ce,Nd:YAG transparent ceramic, and a YAG transparent ceramic II. The microstructured concave YAG transparent ceramic is used to reduce the temperature gradient and compensate for the thermal lensing effect; the Nd:YAG transparent ceramic is used to collect the energy emitted by the microstructured concave YAG transparent ceramic and to transfer the energy; the Ce,Nd:YAG transparent ceramic is used for laser energy transfer; and the YAG transparent ceramic I and YAG transparent ceramic II are used to reduce the ceramic thermal lensing effect. It is prepared using thermal bonding technology. The composite laser ceramic of this invention emits bright yellow light near 1064 nm when excited by a laser with a pump source of 808 nm. Furthermore, the composite laser ceramic has a light-to-light conversion efficiency of 19.85% and a laser threshold of 410 mW.

The application provides an omnidirectional following type reversing support, which comprises a supporting assembly, an adjusting assembly and a protection assembly, the supporting assembly is composed of a stand column, a transmission shaft is arranged on the top side wall of the stand column, a sleeve is movably sleeved on the surface of the transmission shaft, a linkage mechanism is arranged in the top end of the stand column, the adjusting assembly is composed of a horizontal plate and a photovoltaic panel, the photovoltaic panel is connected with the horizontal plate through a rotating frame, a rotating shaft is rotatably connected with the inside of the annular plate, the protection assembly is composed of a fixing base, a gear ring is arranged in the fixing base, and a connecting gear is fixedly connected to one end of a supporting plate. The application adopts a double-shaft adjusting mode to adjust the angle of the photovoltaic panel, realizes the omnidirectional following function to improve the light conversion efficiency as much as possible, and drives the adjacent reversing support, the sleeve is connected to realize the synchronous control of the angle of the same row of supports, realizes the synchronous control of multiple supports, the driving mechanism can drive the supporting plate to rotate and realize the support of the two sides of the photovoltaic panel, and the use strength of the reversing support is improved.

The invention belongs to the technical field of material preparation, and provides a non-rare earth metal doped copper-based up-conversion photocatalytic material and a preparation method thereof.The preparation method comprises the following steps that Cu (NO3) 2.3 H2O, (NH4) 2HPO4 and water are mixed and then placed in a homogeneous reactor to be subjected to a hydrothermal reaction, and a mixture is obtained; and drying the mixture to obtain the Cu2 (OH) PO4 photocatalytic material. Cu (NO3) 2.3 H2O, (NH4) 2HPO4 and water are mixed and then Cu2 (OH) PO4 is prepared by adopting a hydrothermal method, the conditions are mild, the operation is simple, the effect of photocatalytic degradation of pollutants is obvious, the stability is good, the cost is relatively low, rare earth metal does not need to be introduced, and the method is suitable for industrial production and application; the prepared sample has larger absorbable wavelength, and the light conversion efficiency of the photocatalytic material and the performance of photocatalytic degradation of pollutants are improved, so that the photocatalytic activity is improved.