37results about How to "Improve light conversion rate" patented technology

The invention relates to the field of anti-reflective coatings, in particular to a solar cell anti-reflective coating. The self-cleaning solar cell anti-reflective coating is characterized in that transparent tempered glass serves as base materials, the anti-reflective coating comprises three coating bodies, namely the silicon dioxide coating body, the titanium dioxide coating body and the silicon dioxide coating body, the silicon dioxide coating body, the titanium dioxide coating body and the silicon dioxide coating body are sequentially arranged from the side close to the transparent tempered glass to the outside, the reference wavelength is the 800-nm wavelength, a sol-gel method is adopted for the silicon dioxide coating body close to the transparent tempered glass, the optical thickness of the silicon dioxide coating body is one fourth of the reference wavelength, magnetron sputtering coating is adopted for the titanium dioxide coating body, the optical thickness of the titanium dioxide coating body is a half of the reference wavelength, magnetron sputtering coating is adopted for the silicon dioxide coating body on the outer side, and the optical thickness of the silicon dioxide coating body is one fourth of the reference wavelength. According to the self-cleaning solar cell anti-reflective coating, the photocatalysis self-cleaning function of titanium dioxide and the hydrophobicity of nanoscale silicon dioxide are sufficiently used, the light conversion rate can be increased by 1%, the durability of the glass of the anti-reflective coating can be further improved, a solar cell panel can be easily applied outdoors for a long time, and the cost of solar power generation is greatly saved.

The invention discloses a photocatalysis sterilization deodorization device which is used for eliminating bacteria and odor in the air, and comprises a chassis, a sterilization deodorization mechanism, an exhaust mechanism and a control system, wherein the sterilization deodorization mechanism comprises a photocatalysis plate and a catalysis light source, the catalysis light source is arranged on one side or two sides of the photocatalysis plate and illuminates a light catalyst layer; the exhaust mechanism is used for enabling the air to sequentially flow by an air inlet cavity, the photocatalysis plate and an air outlet cavity to reach an exhaust port from an air suction port; and the control system is respectively electrically connected with the catalysis light source and the exhaust mechanism. By adopting the advanced photocatalysis technology and utilizing the strong oxidation function of the photocatalysis, harmful substances including ammonia, sulfide and organic volatize gases in the air of a toilet can be high efficiently oxidized into harmless substances, the deodorization rate can reach more than 99 percent and all bacteria can be basically killed and cannot be recovered.

The invention, which belongs to the technical field of plant cultivating, particularly relates to a plant cultivating device and a remote plant cultivating monitoring system having the same. The plant cultivating device comprises a cultivation room; an LED light supplementing lamp and a height adjusting unit are arranged inside the cultivation room; the height adjusting unit consists of a motor, a drive screw rod, and a lifting rod, wherein the parts are connected successively; the LED light supplementing lamp is connected to the lifting rod; an internal thread is arranged at the lifting rod; the drive screw rod and the lifting rod are in a screw joint; and the motor cont5rols the lifting rod to move up and down by the drive screw rod. The LED light supplementing lamp is driven by the lifting rod to move up and down and is used for adjusting the illumination intensity on the plant. According to the invention, the height adjusting unit has a simple structure; a few of parts are used; the occupied space is small; and practicability is low.

A solar energy soft-porcelain decorative material is characterized by including a base layer and a solar energy conversion layer. The base layer is a soft-porcelain material. The solar energy conversion layer is a flexible solar cell assembly. A TiO2 reflection layer is arranged between the base layer and the solar energy conversion layer. The flexible solar cell is formed by depositing a semiconductor material onto a transparent conductive thin film. The solar energy soft-porcelain decorative material is light in weight, has proper flexibility, is simple in production method and is high in photo-electricity conversion rate.

The invention discloses a preparation method and application of a biodegradable rare earth fluorescent film. According to the method, a PLA matrix is doped with a trinuclear rare earth europium complex luminescent material Eu3(TTA)9-TPMB to obtain the biodegradable rare earth fluorescent film with PLA as the matrix, wherein, the mass ratio of the PLA to the Eu3(TTA)9-TPMB is 100: (1-10). The biodegradable rare earth fluorescent film made of the Eu3(TTA)9-TPMB-doped PLA matrix has the advantages that the biodegradable rare earth fluorescent film can be degraded completely and is environmentallyfriendly, green and free from pollution; the biodegradable rare earth fluorescent film also has the advantages of trinuclear rare earth europium complex luminescent materials, including superior luminescent property and high energy transfer efficiency; europium ions have unique red-light luminescent property, the wavelength is between 610nm and 640nm, plant photosynthesis is benefited to help plant production, and a good agricultural value is achieved; the biodegradable rare earth fluorescent film has a simple preparation process and a low cost, and is suitable for popularization and application.

The invention discloses a fluorine-contained polythiophene photoelectric material with high optical conversion rate and a preparation method thereof. The fluorine-contained polythiophene photoelectric material with high optical conversion rate is in a three-embedded-segment macromolecular structure containing fluorine-contained polythiophene receptor-polythiophene- polythiophene donors, wherein a fluorine-contained polythiophene receptor is polythiophene containing a fluorine-contained alkyl chain. Compared with the prior art, the fluorine-contained polythiophene photoelectric material introduces fluorine-contained groups strongly sucking electrons in the polythiophene structure to improve the electron-receiving capability. A controllable segmental catalyst transferring and polymerizing method is utilized to synthesize the polythiophene in the regular three-embedded-segment macromolecular structure containing the fluorine-contained polythiophene receptor-polythiophene- polythiophene donors. The invention has the advantages of little defects, low carrier loss rate and high optical conversion rate and can be used in the field of organic film solar batteries to provide an ideal material for preparing solar batteries with high optical conversion rate.

The invention belongs to the technical field of photocatalysts, and discloses a magnetic photocatalyst with SPR response, and a preparation method thereof. The preparation method comprises: rapidly and simply preparing Fe3O4 nanoparticles with good magnetic property and uniform particle size through microwave irradiation, preparing a magnetic composite catalyst Ag3PO4/Fe3O4 by using an ultrasonic-assisted in-situ precipitation method, and preparing an Ag/Ag3PO4/Fe3O4 composite material through microwave reduction of partial silver. According to the present invention, the photocatalyst is rapidly prepared by using the microwave reduction method, wherein the method is simple, and the preparation time is substantially shortened; and the prepared catalyst has high activity so as to further improve the light conversion rate, has superparamagnetism, and can be simply and rapidly recycled, wherein the MG degradation rate of the catalyst can achieve more than 99%.

The invention belongs to the technical field of petrochemical industry, and relates to a hydrocracking technology. By a heavy oil hydrocracking technology provided by the invention, through addition of a hydrocracking catalyst and a hydrofinishing catalyst simultaneously in a hydrocracking reaction, in cooperation with supplementation of fresh hydrogen, the partial pressures of H2S and NH3 in a secondary hydrocracking reaction are reduced, and a hydrodesulfurization reaction and a hydrodenitrification reaction can be promoted to be reversely performed. The lightweight conversion rate of heavyoil is improved, and the desulfurization rate and the denitrification rate are greatly increased, so that an oil product with relatively high quality is directly and efficiently obtained. In allusionto the characteristics of components contained in the heavy oil, the time of inflating the secondary hydrogen and heating is further controlled, so that the reaction time is saved on the basis that amore easily cracked heavy oil component is hydrocracked as much as possible; through timely heating and supplementation of fresh hydrogen, hydrocracking and refinement of a heavy oil component which is more difficultly cracked for removing heteroatoms is promoted.

The invention relates to an LED assembly, a quantum dot LED light-emitting part, a quantum dot LED packaging structure and display equipment. The LED assembly comprises an LED chip, and a light-transmitting quantum dot containing structure with a plurality of protrusions in the surface is arranged on one side face of the LED chip. The light-transmitting quantum dot containing structure is a porousstructure; and the light-transmitting quantum dot containing structure is made of an organic polymer or an inorganic substance. A material capable of forming a porous structure through etching treatment is utilized to construct the light-transmitting quantum dot containing structure with high light transmittance by taking a quantum dot as a light source, so that the quantum dot can be arranged ina specific form in a three-dimensional space, and in addition, by combining a multiple refraction guide path provided for light, the quantum dot in the whole region is prevented from being systematically quenched due to quenching blackening caused by excessive blue light irradiation on the quantum dot in a local range; the blue light absorption rate of the quantum dots is effectively improved, the actual usage amount of the quantum dots can be effectively reduced under the same brightness while the high light conversion rate is achieved, and therefore the cost is reduced.

The invention discloses a laboratory nucleic acid product removing method and device, the device comprises a UVC lamp bead assembly, the UVC lamp bead assembly is used for disinfecting and killing a sample, the UVC lamp bead assembly comprises UVC lamp beads, the optical power range of the UVC lamp beads is 50-100 mW, the optical power range of the UVC lamp bead assembly is 30-100 W, the wavelength range of ultraviolet rays emitted by the UVC lamp beads is 260-270 nm, the center wavelength is 265 nm, and the UVC lamp bead assembly is used for disinfecting and killing the sample. Or the wavelength range of the ultraviolet rays emitted by the UVC lamp beads is 270-280 nm, and the central wavelength is 275 nm. The UVC lamp bead capable of generating a certain deep ultraviolet band is utilized to physically irradiate a polluted sample or formed aerosol and toxin, so that nucleic acid and product pollution can be effectively removed within a short time, the removal rate is high, and ultraviolet leakage is avoided.

The invention discloses a preparation method and applications of a photocatalysis material prepared through adding of graphene. The preparation method comprises following steps: 1, indium and bismuthare dissolved in a nitric acid solution to obtain a mixed nitrate solution; 2, butyl titanate and isopropanol are mixed and stirred to obtain a mixed solution of butyl titanate and isopropyl; 3, a graphene aqueous solution, the mixed nitrate solution obtained in step 1, and deionized water are mixed and stirred to obtain a graphene mixed solution; 4, the graphene mixed solution prepared in the step 3 is mixed with the mixed solution of butyl titanate and isopropyl, and an obtained product is stirred, and is subjected to 2h of hydrolysis reaction at a reaction temperature of 60 to 70 DEG C; 5,the temperature is increased through heating to 95 to 100 DEG C, stirring is carried out, and reaction is carried out for 4h to form a viscous liquid; and 6, deionized water and isopropyl are added tothe viscous liquid, stirring is carried out, and when it is detected that the pH value becomes 7, stirring is stopped so ast o obtain a stock solution. The preparation method is simple and easy to operate, no ultraviolet light irradiation is needed, the antibacterial rate is high, and the organic matter decomposition performance is excellent.

The invention discloses a mixed light LED light source, which comprises a substrate and a plurality of LED devices. The LED devices are fixedly connected to the substrate, the LED devices comprise a yellow-green light LED device and a red light LED device, the yellow-green light LED device comprises a blue light chip and yellow-green light fluorescent powder, and the red-light LED device comprisesa blue-light chip and red-light fluorescent powder. According to the invention, two kinds of fluorescent powder capable of mutually absorbing exciting light of each other are separately arranged on different LED devices, and then the yellow-green light and the red light are emitted towards the light emitting direction of the LED device, so that the yellow-green light and the red light are prevented from entering fluorescent powder which can absorb the yellow-green light and the red light, light absorption among different fluorescent powder is effectively eliminated, the light conversion rateof the light mixing LED light source is greatly improved, and the internal friction of the device is reduced; and meanwhile, the proportion of various colored lights in the mixed light LED light source is easier to regulate and control, and the fine regulation of the color of the emergent light can be realized. The invention further provides LED lighting equipment with the beneficial effects at the same time.

The invention discloses a solar cell with a high conversion rate, which comprises a substrate, wherein the substrate is provided with a first conductive layer, the substrate is provided with a P+ amorphous silicon layer at one side of the first conductive layer, the P+ amorphous silicon layer is provided with an intrinsic amorphous silicon layer at the side away from the first conductive layer, the intrinsic amorphous silicon layer is provided with an N+ amorphous silicon layer at the side away from the P+ amorphous silicon layer, and the N+ amorphous silicon layer is provided with a protective layer at the side away from the intrinsic amorphous silicon layer. According to the invention, multi-layer laminated structures such as a three-layer P-i-N laminated structure are manufactured or some transition layers are inserted in order to improve the efficiency and the stability, wherein the intrinsic amorphous silicon layer is the i layer which is used for improving the photoelectric conversion efficiency and stability of the solar cell with an amorphous silicon structure. In addition, the thickness of the amorphous silicon solar cell is only 1% of that of monocrystalline silicon or polycrystalline silicon, which can well absorb the sunlight. A lot of materials are saved so as to reduce the manufacturing cost of the solar cell, and the photoelectric conversion efficiency of the solar cell is improved at the same time.

The invention discloses a solar radiation absorption device capable of achieving automatic cleaning. The solar radiation absorption device comprises a work box and a rectangular cavity located in thework box, wherein an opening of the rectangular cavity is formed upwards. A first cavity which is located on the lower side of the rectangular cavity and communicates with the rectangular cavity is fixedly arranged in the work box. A first rotating shaft is rotationally arranged on the inner wall of the lower side of a first cavity. The outer end wall of the first rotating shaft is in threaded connection with a threaded sleeve. A rectangular solar plate connected with a circumferential wall of the rectangular cavity in an abutting manner is fixedly arranged on the upper end face of the threaded sleeve. The solar radiation absorption device is a built-in power generation device capable of automatically cleaning the solar plate, under the condition that an ultraviolet detector detects that it is sunny outside and ultraviolet light is sufficient, the rectangular cavity of the device will be opened, and therefore the rectangular solar plate of the device is made to ascend to the upper opening of the rectangular cavity, and solar energy is absorbed and is converted into electric energy to be stored; and after the solar plate is used every time, sundries possibly falling on the solar plate will be blown away by fan blades of the device, and therefore the service life of the solar plate is prolonged, and a high light conversion rate is guaranteed.