936 results about "Composite substrate" patented technology

The invention provides a slow-release ecological grass blanket for improving an eroded inferior land and a construction method of the slow-release ecological grass blanket. The ecological grass blanket comprises a bottom intercepting layer, a nutrient slow-release layer, a seed triggering layer and a surface fixing layer which are sequentially arranged on the soil surface of the eroded inferior land. The bottom interception layer at least comprises a water-soluble lower film arranged on the soil surface and a first composite substrate layer arranged on the water-soluble lower film; the nutrient slow-release layer at least comprises an organic fertilizer mixture particle layer arranged on the first composite substrate layer and a water-soluble upper film arranged on the organic fertilizer mixture particle layer; the seed triggering layer comprises a degradable fiber lower net arranged on the water-soluble upper film and a composite seed belt arranged on the degradable fiber lower net; the surface fixing layer comprises a second composite substrate layer arranged on the composite seed belt and a degradable fiber net arranged on the second composite substrate layer. The ecological grass blanket provided by the invention is high in seed survival rate, good in uniformity, low in cost and capable of realizing sustainable ecological restoration.

The invention discloses an MEMS thermal flow sensor based on a glass film structure and a preparation method of the MEMS thermal flow sensor. The sensor comprises a glass inner silicon substrate, a back cavity, a silicon through column, a heating resistor, a temperature measurement resistor, an environment temperature measurement resistor, a chromium adhesion layer, a PAD port and a silicon nitride protection layer. Wherein the heating resistor is located in the center, and the temperature measuring resistors are symmetrically distributed on two sides of the heating resistor; the back cavity is located on the back of the glass inner silicon substrate, and the heating resistor, the temperature measuring resistor and the environment temperature measuring resistor lead a PAD port to the back of the glass inner silicon substrate through a silicon through column. A thermal temperature difference principle is adopted, and upstream and downstream temperature measuring resistors form a Wheatstone bridge. When the flow velocity is not zero, the Wheatstone bridge outputs, and the larger the flow velocity is, the larger the output is. Based on the glass and silicon composite substrate, the suspension film structure is formed through the silicon etching process, transmission of heat to the substrate is greatly reduced, and the heat utilization rate is increased.

The invention discloses a door and window surface treatment intelligent regulation and control system and method based on multi-sensor fusion. According to the method, through multi-dimensional cooperation of the self-learning optimization center, breakthrough improvement of the process quality and essential optimization of the production efficiency are achieved. According to the system, the high-precision simulation capability of the digital twins and a dynamic decision-making mechanism of reinforcement learning are deeply fused, so that fine changes of material characteristics, environmental conditions and equipment states can be sensed in real time in the door and window surface treatment process, and optimal process parameters are automatically generated. The traditional hysteresis quality which depends on manual experience for adjustment is thoroughly eliminated, and when the system treats complex working conditions such as special-shaped curved surfaces and composite base materials, not only can the uniformity of the nanoscale coating be maintained, but also the energy supply strategy can be dynamically optimized, and the energy consumption and the material loss can be obviously reduced. The cross-process global optimization capability ensures that the links of pretreatment, spraying, curing and the like form cooperative gain instead of isolated operation, and the debugging period of the complex process is greatly shortened through the full-process intelligence.

The invention belongs to the technical field of folding screens, and discloses an optical conductive film for a folding screen and a preparation method thereof.The optical conductive film for the folding screen comprises a composite base material, an interface transition layer, a gradient refractive index optical adjustment layer, a hybrid conductive layer and a scratch-resistant wear-resistant layer which are sequentially stacked from bottom to top; the composite base material is a blending modification layer of polyimide and transparent polyamide, the hybrid conductive layer is formed by compounding silver nanowires, a graphene sheet layer and PEDOT: PSS according to a preset proportion, and the refractive index of the gradient refractive index optical adjustment layer is gradually reduced in the direction away from the composite base material. And the difference value between the refractive index of the gradient refractive index optical adjustment layer and the refractive index of the hybrid conductive layer is not greater than 0.05. The mechanical stability, the light transmission efficiency, the conductive stability, the scratch resistance and the wear resistance of the film are improved, the performance is stable after folding circulation, the use requirements of a folding screen are met, and application in different scenes can be met.

The invention belongs to the technical field of chemical vapor deposition of diamond films, and particularly relates to a high-temperature pulse bias assisted diamond single crystal heteroepitaxial growth method, which comprises the following steps: carrying out ultrasonic cleaning and etching pretreatment on an Ir / YSZ / Si composite substrate; self-assembling a polystyrene nanosphere template on the surface of the substrate; placing the substrate covered by the template in a low-power oxygen plasma etching machine for etching to form a regular nano pit array; putting the etched substrate into a microwave plasma chemical vapor deposition (MPCVD) reaction cavity, and applying-300V short pulse bias voltage to realize nucleation of high-density diamond crystal nuclei; after the bias voltage is closed, conventional diamond epitaxial growth continues to be carried out in the MPCVD cavity; after the growth is finished, the self-supporting diamond film is separated through chemical dissolution, a nano pit template is formed through pre-etching, and one-time-300V short pulse bias is combined, so that high-density and highly-uniform sp3 crystal nucleus nucleation can be realized on the surface of the substrate, and the distribution consistency and nucleation efficiency of diamond crystal nucleation are improved.

The invention discloses a high-solid-content MIL-101 (Fe) / PIM-1 mixed matrix membrane and a preparation method thereof, and belongs to the technical field of gas separation membranes. The preparation method comprises the following steps: firstly, dissolving an iron source in a PIM-1 polymer solution to form a homogeneous membrane casting solution; forming the obtained membrane casting solution, and removing the solvent to obtain a PIM-1 / Fe (II) composite substrate containing Fe (III); then, the substrate is alternately immersed in a terephthalic acid methanol solution and a ferric salt methanol solution, and MIL-101 (Fe) is generated in the polymer matrix through in-situ limited crystallization by layer-by-layer limited crystallization. According to the method, the problem of interfacial compatibility between the MOF filler and the polymer matrix is effectively solved, and high loading capacity (up to 52.9 wt.%) of MIL-101 (Fe) is realized without agglomeration. Meanwhile, the membrane has excellent COplasticizing resistance and long-term operation stability, and has a wide application prospect in the fields of carbon capture and the like.

The invention provides a high-strength antibacterial implant material and a preparation method thereof. The implant material comprises a composite matrix, a graphene-titanium nitride composite coating and a tantalum-silver composite coating, wherein the graphene-titanium nitride composite coating and the tantalum-silver composite coating are sequentially arranged on the surface of the composite matrix from inside to outside; wherein the graphene-titanium nitride composite coating is of a multi-layer alternating structure formed by alternately stacking graphene layers and titanium nitride layers; the tantalum content and the silver content in the tantalum-silver composite coating are in opposite gradient changes. The mechanical strength and the antibacterial property of the implant material are remarkably improved through the multi-layer alternate structure design, the hardness and the biocompatibility of the material are enhanced through the graphene-titanium nitride composite coating, and the implant material is endowed with the antibacterial property and the corrosion resistance through the tantalum-silver composite coating; the implant material has long-acting antibacterial property and biological safety while keeping high strength, so that the implant material is widely applied to the medical implant fields of orthopedics, dentistry and the like.

A composite substrate includes a piezoelectric layer and a low-acoustic-velocity film. The low-acoustic-velocity film extends along a bottom surface of the piezoelectric layer and has a lower acoustic velocity than the piezoelectric layer. An inverse velocity plane of an acoustic wave propagating through the piezoelectric layer is concave.

The embodiment of the invention provides a composite substrate and a preparation method of the composite substrate, relates to the technical field of semiconductor devices, and is used for solving the technical problem of relatively high bonding interface resistance of a composite substrate formed by bonding a 3C-SiC substrate and a 4H-SiC substrate in related technologies. The composite substrate comprises a 3C-SiC layer and a 4H-SiC layer, the 4H-SiC layer comprises a first surface, and the 3C-SiC layer comprises a second surface; the first surface and / or the second surface comprises a high-concentration doped layer with N-type conductivity, and a bonding interface of the 3C-SiC layer and the 4H-SiC layer is a contact surface between the high-concentration doped layer and the second surface, between the high-concentration doped layer and the first surface or between the high-concentration doped layer and the two high-concentration doped layers. The interface energy band is adjusted through the energy band bending effect of the high-concentration doping layer, the barrier width and height of the bonding interface are reduced, electrons penetrate through the barrier through a tunneling mechanism, the migration efficiency of the electrons on the heterojunction interface is improved, and the interface resistance is reduced.

The invention discloses a Guangxi strigose hydrangea juvenile tea gall mite comprehensive control method based on ecological regulation and control, and belongs to the technical field of ecological planting of strigose hydrangea juvenile tea. The method comprises the steps that lemongrass is planted on the periphery to form a smell barrier, purple perilla is arranged in the middle, Guangxi strigose hydrangea juvenile tea and sugar oranges are planted at intervals in a core area, and a composite rhombic layout is formed; chinaroot greenbrier is planted in the interplanting zone at intervals to serve as gall mite trapping plants, and matrine or azadirachtin botanical pesticide is sprayed to the chinaroot greenbrier regularly; a composite substrate containing 60-65% of loess, 20-25% of bagasse biochar, 10-12% of vermiculite and 3-5% of sodium alginate-attapulgite clay composite water-retention slow-release particles is adopted to form a water-retention breathable layer with a slow-release function; and spreading wormwood seeds around the host plants to inhibit survival of overwintering adults of the gall mites. The method has good ecological benefits and insect pest prevention and control efficiency, effectively improves the soil microenvironment and is suitable for sweet tea planting in subtropical hilly areas such as Guangxi.

The invention provides a modified silicon-based negative electrode material as well as a preparation method and application thereof, and relates to the technical field of new energy battery negative electrodes. The preparation method provided by the invention comprises the following steps: dipping a boron-silicon substrate in a pre-lithium solution, evaporating a solvent to dryness, and calcining to obtain a modified substrate; growing silicon nitride nanowires on the surface of the modified matrix in situ to prepare a composite matrix; and reducing the composite matrix in a reducing atmosphere, and coating the surface with mesoporous carbon to prepare the modified silicon-based negative electrode material. The structure stability of the negative electrode material in the charging and discharging process can be effectively improved, the cycle performance reduction caused by the pulverization of the negative electrode material is avoided, and meanwhile, the first effect can be improved by performing pre-lithiation on the boron-silicon substrate.

The invention discloses a composite circuit substrate material parameter pixel gray scale coding method and device and a storage medium, and relates to the technical field of composite substrate material physical property modeling simulation. According to the method, the composite circuit substrate unit image is pixelated, the pixel gray value is used as a matrix material parameter coding space, and then matrix material parameter information is embedded into the substrate unit image, so that fusion coding of wiring pattern features and material mechanical parameters is realized when two or more materials exist in the same layer of substrate; and the accuracy of predicting the equivalent mechanical parameters of the substrate unit through the wiring image information of the substrate unit and the deep convolutional neural network is improved.

The invention discloses a biodegradable flexible conductive high-hydrophobicity sensor substrate and a preparation method and application thereof.The preparation method comprises the steps that a polylactic acid electrostatic spinning solution and a chitosan / polyethylene oxide mixed electrostatic spinning solution are prepared on the basis of a safe and non-toxic food-grade material; the preparation method comprises the following steps: sequentially spinning by adopting an electrostatic spinning technology to form a sandwich structure flexible substrate, transferring a carbon nano tube conductive film, and tightly attaching the carbon nano tube conductive film to the surface of a polylactic acid layer of the sandwich structure substrate, thereby finally obtaining the flexible conductive high-hydrophobicity composite substrate. According to the invention, a hydrophobic-hydrophilic-hydrophobic sandwich structure is constructed through multi-layer electrostatic spinning, and a surface carbon nanotube conductive layer is cooperated, so that the substrate has high hydrophobicity, excellent conductivity and flexible tensile property. The preparation method has the characteristics of controllable process, low cost and environmental friendliness, and the obtained substrate is expected to have wide application prospects in the fields of food packaging, sensor substrates, intelligent wearing, health monitoring and the like.

The invention discloses an integrally compression-molded hard top tent shell for a vehicle, which comprises a hard shell main body, the hard shell main body comprises a PHC composite substrate and a protective shell arranged outside the PHC composite substrate, and the PHC composite substrate comprises a surface glass fiber layer, a bottom glass fiber layer and a honeycomb core material arranged between the surface glass fiber layer and the bottom glass fiber layer. The invention further discloses a manufacturing process which comprises the following steps: S1, slitting the glass fiber raw material; s2, taking the unfolded honeycomb core material; s3, conveying to a spraying room for spraying a polyurethane material; s4, the prefabricated protective shell, the prefabricated first metal embedded part and the prefabricated second metal embedded part are filled; s5, performing hot-pressing shaping; s6, the blocked holes are cleaned; s7, cutting off slitter edges of the formed edges and polishing the formed edges; and S8, packaging and warehousing after visual inspection is qualified. The hard-top tent shell is integrally formed, the number of assembly parts is small, and assembly is convenient and fast; the technology is high in specificity, the manufactured hard-top tent shell can be directly used for later assembly, the overall function is complete, and practicability is high.

The invention provides a composite substrate and a preparation method thereof, a semiconductor device and a chip, relates to the technical field of semiconductor chips, and aims to solve the problem that the on resistance of the composite substrate is relatively high due to relatively high bonding interface resistance after a plurality of substrates are bonded together. The composite substrate comprises a first substrate, a functional layer and a second substrate which are sequentially stacked, the first substrate and the second substrate are connected through the functional layer; wherein the resistivity of the material of the functional layer is less than or equal to 1 * 10 <-4 > omega.cm.

The invention provides a flexible temperature sensor based on aerosol jet printing and a preparation method and application thereof, and belongs to the technical field of novel materials. The preparation method of the flexible temperature sensor comprises the following steps: (1) mixing polyimide with N, N-dimethylformamide to obtain a PI solution; coating paper with the PI solution, and drying to obtain a PI / paper-based composite material substrate; (2) preparing graphene and deionized water into a solution, and adding a dispersing agent to obtain conductive printing ink; and (3) taking the PI / paper-based composite material as a substrate, printing conductive printing ink on the PI / paper-based composite material substrate through aerosol jet printing, and drying to obtain the flexible temperature sensor. The flexible temperature sensor provided by the invention is mainly used for monitoring the internal temperature of a heat-sensitive food package. Through the improvement and innovation of materials and processes, the overall performance (such as stability, accurate monitoring performance, good bending adaptability, quick response and the like) and environmental protection performance of the sensor are improved, so that the sensor can be used for monitoring the internal temperature of a heat-sensitive food package.

The invention discloses a method for epitaxial growth of gallium oxide on a patterned composite substrate and a gallium oxide thin film, and belongs to the technical field of semiconductor manufacturing. Comprising the following steps: step 1, providing a patterned composite substrate, placing the patterned composite substrate in a reaction cavity, and baking the patterned composite substrate; 2, preparing a buffer layer on the patterned composite substrate; and step 3, preparing a gallium oxide thin film on the buffer layer. According to the invention, the problem of large difference of gallium oxide heteroepitaxy thermal expansion coefficients is solved, the problem of stress release of high-temperature epitaxial gallium oxide is optimized, the heat dissipation capability is improved, the flatness of an epitaxial gallium oxide film is improved, and the quality of the epitaxial film is also greatly improved.

Provided is a composite substrate having a variable dielectric constant, the composite substrate comprising: a stretchable polymer matrix formed of a stretchable polymer having elasticity; and a dielectric cluster having a predetermined shape, the dielectric cluster being contained in the polymer matrix and formed from a dielectric powder having dielectric properties, wherein when the composite substrate is stretched, the predetermined shape of the dielectric cluster changes and thus the dielectric constant changes.

The invention discloses a composite material liner and a production process thereof, and the production process comprises the following steps: carrying out plasma surface activation treatment on a foam substrate to obtain an activated foam substrate; the activated foam substrate and a polyester film are placed in ultraviolet irradiation equipment to be subjected to modified composite treatment, and a composite base material is obtained; performing line-by-line irradiation on the composite base material along a preset grid pattern based on a laser, forming a groove network structure on the surface of the composite base material, and obtaining a grid base material with grid identification lines; the grid base material is subjected to nanometer coating spraying treatment, and a coating base material is obtained; the coating base material is subjected to hot-pressing shaping treatment, and a semi-finished liner product is obtained; and the semi-finished liner is subjected to laser cutting treatment according to the preset size, and the composite liner is obtained. Through the integrated process design, the technical bottleneck that in the prior art, the surface structure machining precision is insufficient is remarkably overcome, and the applicability and reliability of the product in the electronic equipment industry, the automotive trim industry and the packaging industry are remarkably improved.

The invention relates to a high-voltage polyoxyethylene (PEO)-based solid electrolyte and a preparation method thereof, and belongs to the technical field of solid-state battery materials. The electrolyte is composed of a polymer substrate, an inorganic filler, a cosolvent and a lithium salt, the polymer substrate is a PEO-polyacrylonitrile (PAN) composite substrate; the inorganic filler is lithium titanium aluminum phosphate LATP, and the cosolvent is fluoroethylene carbonate FEC; the lithium salt is lithium bis (trifluoromethanesulfonic acid) imide LiTFSI and lithium difluoro (oxalato) borate LiDFOB; the dispersing agent is acetonitrile ACN. The method has the advantages that PEO and FEC are complexed to form a new structure, and room-temperature efficient operation of a single-salt (LiTFSI) system is realized; and meanwhile, LiDFOB is cooperatively introduced to construct a stable passivation layer on a positive electrode interface, FEC synchronously induces to generate LiF-rich stable SEI on a lithium negative electrode, and the interface compatibility and electrochemical stability of the electrolyte to a high-voltage electrode are remarkably improved.

The invention discloses a TEC photo-thermal stable thermoelectric power generation device and a preparation method thereof, and relates to the technical field of thermal power generation, and the TEC photo-thermal stable thermoelectric power generation device comprises an energy capture module, a thermoelectric power generation module and a dual-mode heat dissipation module which are sequentially arranged from top to bottom; the energy capture module comprises a silicon substrate with a micro-cone array on the surface, a phase change energy storage buffer dielectric layer coated on the surface of the micro-cone array, and a silicon carbide film layer, a titanium nitride film layer and a titanium nitride nanoparticle layer which are sequentially arranged on the surface of the phase change energy storage buffer dielectric layer; the thermoelectric power generation module comprises a corrugated metal composite substrate and a plurality of thermoelectric units arranged on the surface of the metal composite substrate. The bottleneck that a traditional single material is insufficient in solar spectrum coverage is broken through, the solar energy utilization efficiency is greatly improved, excessive heat generated by sudden change of instantaneous illumination intensity can be effectively absorbed, and continuous and stable heat source input is provided for thermoelectric conversion.

The invention provides a preparation method and device of a composite matrix for sewage treatment and a server, and relates to the technical field of water treatment material.The preparation method comprises the steps that center combination treatment is conducted on a ternary composite matrix for sewage treatment, and a test formula set is generated; obtaining test data corresponding to the test formula set, and taking the removal rate corresponding to each matrix as a response value to obtain target test data; substituting the target test data into a quadratic polynomial regression model of the ternary composite matrix to carry out regression analysis processing to obtain a model predicted value, and carrying out model verification updating processing on the quadratic polynomial regression model by utilizing the model predicted value and the target test data to determine a target quadratic polynomial regression model; and through the target quadratic polynomial regression model, optimizing the ratio of the ternary composite matrix, and determining the target mass ratio of the ternary composite matrix. According to the invention, the pollutant removal rate of synergistic decontamination of various pollutants in the sewage treatment process can be obviously improved.

To improve the adhesion between a substrate and an external electrode in a coil component equipped with a composite substrate.SOLUTION: A coil component includes substrate containing metal magnetic particles and a resin, a coil conductor provided inside a substrate, an external electrode provided on the surface of the substrate so as to be electrically connected to the coil conductor, and ceramic particles provided between the substrate and the external electrode.SELECTED DRAWING: Figure 1

A coated battery separator, coated battery gelation composite substrate, or coated battery separator membrane is provided comprising a microporous substrate; and a coating on one or both sides of the microporous substrate. The coating comprises a polymeric binder and inorganic filler or siliceous material. In some examples, the separator is coated on one or both sides of the microporous substrate or membrane, wherein the coating comprises a polymeric binder, siliceous material, and carboxymethyl cellulose (CMC). In some examples, the microporous substrate may be a ribbed microporous substrate comprising polyethylene. Also provided are batteries including the coated battery separator, coated battery gelation composite substrate, or coated battery separator membrane. Such batteries may be improved flooded lead acid batteries, VRLA gel batteries, AGM batteries, storage batteries, or flow batteries.

The invention relates to a deposition method and application of a high-compactness SiO2 film, and belongs to the technical field of composite substrate processing. Providing a substrate to be deposited; the substrate is placed on a base in a chemical vapor deposition chamber, the temperature is kept at 350 + / -50 DEG C, SiH4, Ar and N2O are introduced, the flow is 500 + / -50 sccm, 1000 + / -200 sccm and 100 + / -20 sccm respectively, the radio frequency power is 100 + / -20 W, and a SiO2 film is deposited for 60 + / -20 s; the SiH4, the Ar and the N2O continue to be introduced, the SiO2 thin film is deposited repeatedly for 2-4 times, the flow of the SiH4 deposited in each time is increased by 50 + / -10 sccm compared with the flow of the SiH4 deposited in the last time, and the radio frequency power is increased by 30 + / -6 W; and stopping supplying the SiH4 and the N2O, turning off the radio frequency power, placing the SiO2 thin film in a cavity, heating the cavity to 600 + / -50 DEG C, and annealing for 120 + / -20 minutes to finish deposition.

The invention provides an epitaxial wafer, a preparation method thereof and a power device. The epitaxial wafer comprises a composite substrate and an epitaxial layer located on the composite substrate, wherein the composite substrate comprises a polycrystalline layer and a single crystal silicon carbide layer located on the polycrystalline layer; the epitaxial index K of the epitaxial wafer is N1. 5 * d single crystal * rho2 composition, and K is more than or equal to 0 and less than or equal to 5 * 10 <-7 > omega; n is the defect density of the epitaxial layer, and the unit is cm <-2 >; d single crystal is the thickness of the single crystal silicon carbide layer, and the unit is [mu] m; rho is the resistivity of the composite substrate, and the unit is m omega.cm. The on-resistance of a power device made of the epitaxial wafer is low.

The invention provides a low-warping-degree polycrystalline diamond film and a preparation method thereof, and the preparation method comprises the following steps: S1, depositing a layer of neutralization material with a thermal expansion coefficient lower than that of monocrystalline silicon on the surface of one side of a monocrystalline silicon substrate to form a neutralization layer; s2, carrying out mechanical grinding treatment on the surface of the other side of the monocrystalline silicon substrate and cleaning the surface; and S3, putting the processed monocrystalline silicon substrate into microwave plasma chemical vapor deposition equipment, enabling the neutralization layer to face downwards to be in contact with the molybdenum tray, and carrying out growth of the polycrystalline diamond film. A third heterogeneous material is introduced into the double-layer composite structure by adopting a physical or chemical vapor deposition method, the thermal expansion coefficient of the third heterogeneous material is lower than that of monocrystalline silicon, the shrinkage difference between the polycrystalline diamond film and the monocrystalline silicon can be effectively adjusted during cooling, and the warping degree of the polycrystalline diamond film composite substrate is effectively reduced; the polycrystalline diamond film obtained through the method is low in warping degree, the subsequent grinding and polishing time can be effectively shortened, and the manufacturing cost of the polycrystalline diamond film for optics and heat sinks is reduced.

The invention provides an ultra-low pressure reverse osmosis membrane production process and production equipment thereof. The equipment comprises a membrane treatment assembly, a film rolling machine is arranged on one side of the film processing assembly. The device further comprises an unwinding machine, the unwinding machine is arranged on the side, away from the film winding machine, of the film processing assembly, a plurality of first motors are arranged on the unwinding machine, and an air swelling shaft is installed on an output shaft of each first motor; the multiple air swelling shafts are each provided with a material carrying roller, and a base film wound on the material carrying rollers stretches into the film processing assembly. And the sweeping mechanism is used for sweeping the base film. After the base film is unwound, dust and dirt on the surface of the base film can be cleaned and removed through the cleaning mechanism, so that the dust and the dirt are prevented from being clamped and hidden in a composite base material, and the quality of a final product is guaranteed.

The invention relates to the technical field of mycotoxin rapid detection, in particular to an electrochemical luminescence sensor for citrinin detection and a detection method of the citrinin. A sensing substrate of the sensor is prepared by loading platinum nanoclusters (Pt NCs) on a NiCo-LDH / MXene composite substrate through an in-situ growth strategy; the high conductivity of MXene and the LDH confinement effect are utilized to synergistically promote three-dimensional exposure of Pt active sites, the efficiency of generating active oxygen through electro-catalysis is remarkably enhanced, and a light-emitting signal is improved. And a CRISPR / Cas12a system is further integrated, so that a regulation mechanism of recognition-cutting-signal de-suppression is realized, and food matrix interference is effectively avoided. And a new technology is provided for monitoring the fungaltoxin by combining a dual enhancement mechanism of material catalytic optimization and enzymatic signal amplification.