121 results about "Self assemble" patented technology

The invention discloses a high-performance anti-dazzle coating as well as a preparation method and application thereof. The core technology of the coating is to form a uniform film with a micro-nano composite structure on the surface of a base material through a self-assembly film forming process by utilizing nano quartz powder with specific particle size distribution. The coating has excellent optical performance, the light transmittance reaches up to 92% or above, and the haze is strictly controlled to be 5% or below. The unique microstructure can effectively scatter strong incident light (such as sunlight and vehicle lamps), significantly reduce dazzling glare, and maintain high definition of the base material and high reflective (or self-luminous) visibility of the identification itself, so that an observer can clearly and comfortably identify target information. The method is simple in process, controllable in cost, environment-friendly and particularly suitable for the fields of traffic safety, public facility identification, display screen protection and the like.

The invention discloses a carbon-based electrode-microorganism self-assembled compound, a preparation method thereof and application of the carbon-based electrode-microorganism self-assembled compound in strengthening anaerobic fermentation of agricultural wastes. The compound is formed by self-assembly of direct interspecific electron transfer (DITE) functional microorganisms (anode reduction geobacter and methanobacterium flexural) on the surface of a high-conductivity carbon-based electrode under the induction of a micro electric field, the relative abundance of the anode reduction geobacter is 65-82%, and the relative abundance of the methanobacterium flexural is 18-35%. During preparation, the carbon-based electrode is cleaned by acetone, ethanol and water, then the carbon-based electrode, a reference electrode and a counter electrode form a three-electrode system, and the three-electrode system is induced for 3-5 days in a micro electric field of-0.2-0.2 V to form a compound. 1-5 g / L of the compound is added into a straw-excrement mixed substrate (25-40 g VS / L) subjected to alkali pretreatment, anaerobic fermentation is conducted for 50 d after biogas slurry is inoculated, the pH can be stably maintained at 7.2-8.0, the accumulated biogas yield reaches up to 450-630 mL / g VS, and the volume fraction of methane is 68-82%. The process is simple, the compound is high and stable in activity, and efficient resource utilization of agricultural waste can be achieved.

The invention provides a battery predictive maintenance method based on a self-assembly neural network and a large language model, and relates to the technical field of battery maintenance, and the method comprises the steps: collecting original sensor data corresponding to target battery equipment; inputting the original sensor data into a battery predictive maintenance model obtained by pre-training; wherein the battery predictive maintenance model comprises a self-assembly neural network and a large language model; and extracting initial feature information of the original sensor data, extracting time sequence-space joint features corresponding to the initial feature information through the self-assembled neural network, and generating a battery predictive maintenance report corresponding to the target battery equipment based on a pre-constructed battery maintenance knowledge base and the time sequence-space joint features through a large language model. According to the invention, the prediction precision of battery predictive maintenance can be obviously improved.

The invention discloses an aptamer electrochemical biosensor for estradiol detection as well as a preparation method and application of the aptamer electrochemical biosensor. The aptamer electrochemical biosensor is obtained by growing AuNPs particles on the surface of MoS2 to prepare a MoS2-AuNPs composite material, fixing the composite material on the surface of an electrode through chitosan, hybridizing aptamer probes P1 and P2, and self-assembling the aptamer probes P1 and P2 on the surface of the electrode through Au-S bonds. The sensor can be used for in-situ detection of hormone factor estradiol in sweat, can be applied to non-invasive monitoring equipment, and provides reliable and timely monitoring data.

The application provides a method for widening the effective bandwidth of a wave-absorbing material, and comprises a preparation method of a composite material: mixing magnetic metal hydrotalcite and expanded graphite into a multiphase fluid, then introducing the multiphase fluid into a high-speed shearing microcavity in a circulation mode, using the high-speed fluid boundary layer shearing force to realize the interlayer peeling of the magnetic metal hydrotalcite and the expanded graphite, and self-assembling into a two-dimensional / two-dimensional stacked sheet-shaped magnetic particle / few-layer graphite electromagnetic wave absorbing powder. The application proposes a two-dimensional / two-dimensional structure formed by sheet-shaped magnetic nanoparticles and few-layer graphite for a carbon-based magnetic particle composite material. The two-dimensional electron gas is easy to form at the interface, and the resonance loss different from the interface relaxation can be realized by the resonance of the plasmon and the incident microwave. On the other hand, the magnetic performance of the sheet-shaped magnetic nanoparticles can be secondarily regulated, the mode of Aharoni exchange resonance is changed, the dielectric loss and the magnetic loss are improved in an integrated manner, and the effective bandwidth of the material for absorbing electromagnetic waves is widened.

The application discloses a kind of photochromic circular polarized luminescent carbon dots long afterglow composite materials and preparation method and application thereof, belong to chiral luminescent functional material technical field;The composite material with photochromic and long afterglow luminescence characteristics carbon dots as luminescent center, and with cellulose nanocrystal through self-assembly to form chiral composite system with cholesteric helical structure.Carbon dots provide fluorescent emission, photochromic and long afterglow luminescence characteristics, while the chiral structure of cellulose nanocrystal can selectively circularly polarized modulation to luminescence, so as to realize the enhancement of circular polarized luminescent signal.The composite material can realize reversible photochromic luminescence behavior under ultraviolet irradiation, and produce long afterglow emission after excitation stops, while showing obvious circular polarized luminescence characteristics.The material has the advantages of stable structure, simple preparation method, high functional integration, etc., and has good application prospect in information anti-counterfeiting, optical encryption, chiral optoelectronic devices and intelligent display fields.

The invention provides a contact lens for treating xerophthalmia and a preparation method thereof, and belongs to the technical field of medical instruments. The contact lens comprises a contact lens base body and a functional coating fixed on the surface of the contact lens base body, the functional coating is fixed on the surface of the contact lens substrate through a self-assembly technology or a chemical grafting technology; the functional coating comprises a medicine carrying layer and a slow-release regulation and control layer. The surface functionalized coating technology is adopted, the medicine carrying layer and the slow-release regulation and control layer are sequentially constructed on the contact lens base body, a complex micro-channel or cavity structure does not need to be designed in the lens, the process is simple and convenient, large-scale production is easy, and meanwhile the original optical performance and mechanical strength of the lens are not affected.

The present invention relates to the technical field of liquid crystal device preparation, and in particular to a preparation method for a self-assembled vertical alignment film, comprising: preparation of self-assembly solutions: dissolving poly(diallyldimethylammonium chloride) in deionized water to prepare a self-assembly solution A with a concentration of 0.5-10%, and dissolving long-chain alkyl sodium sulfonate in deionized water to prepare a self-assembly solution B with a concentration of 0.02-0.2 mg / mL; cleaning a substrate, and immersing same in the self-assembly solution A for 20-30 h; taking out the substrate, washing with deionized water, and blow-drying with high-purity nitrogen; then immersing the substrate in the self-assembly solution B for 5-100 min; taking out the substrate, washing with deionized water, and blow-drying with high-purity nitrogen; and when a film is prepared, carrying out surface alignment by using a rubbing method, to obtain the self-assembled vertical alignment film. The present invention has the advantages that a self-assembled film can be formed by immersing, in self-assembly solutions, a substrate modified with specific chemical materials, the preparation method is simple, and the stability is good.

The application relates to a kind of foldable band-pass filters based on polyimide flexible substrate.The filter adopts coplanar waveguide structure, and is prepared using self-assembly technology.It is tested that the filter center frequency is 2.5 GHz, the relative bandwidth is 15.9%, the minimum insertion loss is 0.71 dB, and the in-band return loss is greater than 20 dB.The performance of the filter is basically consistent in flat, curved and folded states.The flexible filter prepared using the self-assembly technology is expected to become one of the components of future flexible communication systems.

The application relates to a preparation method of high-quantum-yield tetraphenyl ethene oxonium salt / polyoxometalate fluorescent nanomaterial and application of the nanomaterial in a white light LED lamp. 10 The self-assembly in an aqueous solution is convenient and fast, and a novel fluorescent nanomaterial with environment-friendly characteristics is prepared. The fluorescent material has good light emitting properties, and the fluorescence quantum yield is 39.88%, which is increased by 2.18 times compared with that of original TPE-1. Through mixing of a low amount of the fluorescent material and commercial fluorescent powder, a white light fluorescent powder under 365nm can be obtained, and the fluorescent powder can be used for LED lamp manufacturing.

The invention discloses an electrode material based on an MXene / PEDOT porous membrane and a preparation method and application thereof, and belongs to the technical field of supercapacitor electrode materials. The electrode material comprises a flexible ITO-PET substrate and an MXene / PEDOT porous membrane on the flexible ITO-PET substrate, the ITO-PET flexible substrate is beneficial to improving the bending resistance of the electrode material, the porous structure can inhibit re-stacking of MXene and improve the electrochemical performance of the electrode material, and the electrode material shows high specific capacitance and long cycle stability. The preparation method comprises the following steps: combining simple physical blending with self-assembly and ion exchange processes, coating MXene and PEDOT with an amphiphilic substance to prepare compounds, mixing the two compounds as a pouring liquid, preparing an MXene / PEDOT-based porous membrane through the self-assembly process, removing the amphiphilic substance through the ion exchange process to prepare the MXene / PEDOT porous membrane attached to ITO-PET, and preparing the MXene / PEDOT porous membrane attached to the ITO-PET through the self-assembly process. The porous membrane can be used for constructing a supercapacitor, and the method has the advantages of simplicity, convenience, low cost and environmental friendliness.

The invention provides a photomask manufacturing method based on guided self-assembly. Advanced node high-end photomasks with high graphic quality can be prepared with high production flux. Comprising the steps of forming a first photoetching pattern and a second photoetching pattern; a random copolymer filling step: coating a random copolymer to fill gaps of the second photoetching pattern, and performing first annealing treatment to enable the upper end surface of the random copolymer to be flush with the upper end surface of the second photoetching pattern; a block copolymer guided self-assembly step: coating the random copolymer and the second photoetching pattern with a block copolymer, carrying out second annealing treatment, guiding the block copolymer to carry out self-assembly to form a first block pattern and a second block pattern, and preferentially self-assembling the second block pattern on the upper end surface of the second photoetching pattern; a first block pattern removal step of selectively removing the first block pattern; and a pattern transfer step: taking the second block pattern as a hard mask layer, and transferring the second block pattern to the random copolymer and the photomask substrate.

The invention discloses an antibacterial packaging material and a preparation method thereof, and relates to the technical field of functional packaging materials. When the antibacterial packaging material is prepared, polyvinyl alcohol reacts with 4-carboxybenzaldehyde under the catalysis of hydrochloric acid to prepare carboxylation modified polyvinyl alcohol; the preparation method comprises the following steps: acylating cellulose nanofibers by using 6-bromohexanoyl chloride, and then reacting with 1-octyl imidazole to prepare quaternized modified nanofibers; carboxylation modified polyvinyl alcohol and quaternization modified nanofibers are subjected to electrostatic self-assembly to form a film, and a self-assembly composite film is prepared; and treating the self-assembled composite film with a zinc chloride / sodium bicarbonate composite solution to obtain the antibacterial packaging material. The antibacterial packaging material prepared by the invention has efficient antibacterial property, excellent mechanical strength and controllable degradability, and is suitable for the field of food and medicine packaging.

The invention provides a method of forming a patterned structure. The method includes the following operations. The photoresist layer on the target layer is patterned to form a first opening in the patterned photoresist layer. A directed self-assembly layer is formed on the patterned photoresist layer and in the first opening, wherein directed self-assembly material in the directed self-assembly layer is separated into a first phase on the patterned photoresist layer and a second phase in the first opening by attraction by polarity of the patterned photoresist layer. The second phase is removed to form a second opening through the directed self-assembled layer. The target layer is etched through the second opening. According to the invention, when the photoresist material is patterned, the photoresist material can be very thin to prevent standing waves of light from staying in the photoresist material to influence the formed pattern, so that the pattern of the photoresist material can be formed as expected and transferred into the directed self-assembly material; and when the patterned photoresist material and the directed self-assembly material are used for etching the target layer, the pattern formed by the target layer can meet the expectation.

This invention relates to the field of dielectric materials and energy storage materials, specifically to a self-assembled nanoscale multi-interface all-polymer nanostructure dielectric thin film and its preparation method. The composition of the thin film material meets the following requirements: the mass ratio of thermoplastic resin to bismaleimide resin is 95:5-65:35; the amount of catalyst added is 0.05wt%-2wt% of the weight of the bismaleimide resin. The thin film provided by this invention can meet the application requirements at 150℃ and above 600MV / m. The thermoplastic resin component in the film imparts good flexibility, suitable for the winding and stacking processes of thin film capacitors; while the bismaleimide (BMI) nanoscale multi-interface structure effectively blocks charge injection and excitation, significantly reducing leakage current under high temperature and strong electric field conditions, thereby improving its dielectric energy storage performance under high temperature and strong electric field conditions.

The invention discloses a controllably prepared gold nanorod self-assembled array SERS (Surface Enhanced Raman Scattering) substrate as well as a preparation method and application thereof, and relates to the technical field of SERS (Surface Enhanced Raman Scattering) detection. The substrate comprises a silicon wafer and a surface self-assembled PVP modified gold nanorod array (the length-diameter ratio is 2.5 / 3.1 / 3.5 / 4.2, optimally 3.5), and the array is a continuous compact single-layer film and is excellent in uniformity and reproducibility. The preparation method comprises the following steps: synthesizing gold nanorods by adopting a seed crystal method, and preparing the substrate through three-phase self-assembly (dispersion liquid, dichloromethane, water and normal hexane); during application, a honey sample is pre-treated by a Carrez reagent and then is applied to a substrate, 785nm laser Raman detection is carried out (the characteristic peak is 1524cm <-1 >), the standard substance detection limit is 0.1 mg / L, the honey detection limit is 1mg / L, the adding standard recovery rate is 73.32%-95.92%, and the method is suitable for accurate detection of honey 5-HMF.

The present invention relates to the field of prefunctionalized nanoparticles (NPs). More particularly, the present invention relates to NPs prefunctionalized with self-assembled monolayers (SAMs) and functionalized with biomolecules such that the NPs are stable in solution. These NPs can be used in many applications, particularly as diagnostic tools, tools for depleting molecules of interest in solution, and therapeutic tools.

A display device according to an exemplary embodiment of the present invention includes: a substrate; a plurality of first assembly lines extending along a column direction on the substrate; a plurality of second assembly lines extending along the column direction on the substrate and disposed adjacent to the plurality of first assembly lines; a plurality of first assembly electrodes connected to the plurality of first assembly lines; a plurality of second assembly electrodes connected to the plurality of second assembly lines and facing the plurality of first assembly electrodes; a plurality of transistors electrically connected to each of the plurality of first assembly lines and the plurality of second assembly lines; and a plurality of assembly pads connected to the plurality of transistors, the plurality of transistors being configured to transmit voltage from the plurality of assembly pads to the plurality of first assembly lines and the plurality of second assembly lines. Therefore, voltage can be selectively applied to each of the plurality of assembly lines by using transistors, and the self-assembly regions of light-emitting diodes can be configured in various positions and sizes.

The invention provides a guide self-assembly method, which can effectively remove guide template photoresist below a guide self-assembly pattern to form a high-resolution pattern. Comprising the following steps: annealing a block copolymer, and guiding the block copolymer to self-assemble to form a first block pattern and a second block pattern of which the etching rate is lower than that of the first block pattern; removing the first block pattern to expose the upper end surface of the first photolithographic pattern to the outside; heating the first photoetching pattern, and carrying out pre-etching on the upper end surface of the first photoetching pattern by utilizing pre-etching gas; and transferring the second block pattern to the block copolymer auxiliary layer through etching treatment by taking the second block pattern as a mask, and further transferring the second block pattern to the substrate.

The application discloses a straw confined self-assembly cobalt oxide three-dimensional composite material and a preparation method and application thereof, and belongs to the technical field of gas-sensitive materials. x The method is characterized in that natural straw is used as a hard template, a small amount of Ti3C2T x nanosheets and clay nanosheets are premixed to form a composite network, and then a cobalt salt and a nitrogen source are added to obtain a precursor solution; the precursor is filled in the straw pipeline through vacuum impregnation, and then one-step air calcination is performed to completely pyrolyze and remove the straw template, in-situ convert the cobalt salt into porous Co3O4, and copy the straw pipeline morphology, so that the porous Co3O4 particles are finally uniformly loaded on the surface of the small amount of Ti3C2T x nanosheets. The obtained composite material has high response value, fast response recovery rate and excellent selectivity to NO2 at a working temperature of 70-130 DEG C, and has wide application prospects in the fields of environmental monitoring and industrial safety.

Provided are a nanocomposite dielectric film material for energy storage prepared by vertical self-assembly of lead zirconate titanate (PZT) and magnesium oxide (MgO), and a preparation method thereof. The method includes: 1, preparing a PZT powder; 2, mixing the PZT powder with an MgO powder to obtain a uniformly mixed PM composite powder; and mixing the PM composite powder with a binder, and subjecting a resulting mixture to tableting and cold isostatic pressing to obtain a PM composite target blank; 3, sintering the PM composite target blank at a temperature of not higher than 900° C. to obtain a PM composite target; and 4, subjecting the PM composite target to pulsed laser deposition to form an epitaxial vertical self-assembly composite dielectric film; and subjecting the epitaxial vertical self-assembly composite dielectric film to annealing to obtain the film material.

The invention belongs to the technical field of positive electrode materials, and particularly discloses a hierarchical porous ternary positive electrode material prepared by self-assembly of double sub-templates and application of the hierarchical porous ternary positive electrode material. The hierarchical porous ternary positive electrode material comprises a lithium transition metal composite oxide, the lithium transition metal composite oxide comprises secondary particles composed of a plurality of primary particles, and the secondary particles contain micropores, mesopores and macropores at the same time; the aperture of the micropores is larger than or equal to 0.35 nm and smaller than 2 nm, the aperture of the mesopores is 2-50 nm, and the aperture of the macropores is larger than 50 nm and smaller than or equal to 160 nm; the V micropores and the V macropores account for 15-65% of the V pores, and the ratio of the V micropores to the V macropores is (0.2: 1)-(3: 1). The hierarchical porous ternary positive electrode material meeting the characteristics can reduce the diffusion distance of lithium ions, has the effect of relieving stress generated by volume change among primary particles during charging and discharging, and is beneficial to improving the rate capability and the cycle characteristic of a downstream battery product.

The application discloses a kind of plasma electron sponge nanochannel composite membranes and preparation method and application thereof, the composite membrane includes a layer of self-assembled arrangement plasma electron sponge film and a layer of membrane material with large pore structure, part of the pore in the self-assembled arrangement plasma electron sponge film and part of the large pore in the membrane material with large pore structure are communicated correspondingly, and electron sponge refers to polyoxometalates (POMs). The application first uses plasma electron sponge nanomaterial as functional material to make nanochannel composite membrane, and plasma electron sponge has excellent and stable performance, mild preparation condition, simple operation and green environmental protection. In addition, the plasma electron sponge nanochannel composite membrane prepared by the application can be used as ion selective membrane in salinity gradient energy conversion, and has the advantages of excellent and stable performance, high conversion power and green environmental protection.

This invention relates to the field of metal surface treatment technology, specifically to tin-plated copper wire for preventing tin plating layer peeling and its production process. The production process of the tin-plated copper wire for preventing tin plating layer peeling includes: preparing a nano-alumina-pillared nano-graphene sheet composite material; pretreatment; pulse electroplating; post-plating washing; and passivation sealing. This invention first disperses carboxyl-modified graphene in anhydrous ethanol, then adds an aluminum source precursor. Electrostatic self-assembly allows the aluminum source to be adsorbed onto the graphene sheet surface. After acid-catalyzed gelation, aging, and calcination heat treatment, a nano-alumina-pillared nano-graphene sheet composite material is obtained. This composite material is then added together with polytetrafluoroethylene (PTFE) particles to a mixed tin plating solution. After pulse electroplating of the pretreated copper wire, the nano-alumina-pillared nano-graphene sheets and PTFE particles synergistically improve the bonding force between the tin plating layer and the copper wire substrate, thereby effectively preventing tin plating layer peeling.

Methods and apparatus for self-assembled monolayer (SAM) deposition are provided herein. In some embodiments, an apparatus for self-assembled monolayer (SAM) deposition includes: a chamber enclosing a processing volume; a substrate support disposed in the chamber and configured to support a substrate in the processing volume; a gas distribution system coupled to the chamber and configured to distribute a process gas into the processing volume; a first SAM precursor source fluidly coupled to the gas distribution system to provide a first SAM precursor as a part of the process gas; and a second SAM precursor source fluidly coupled to the gas distribution system to provide a second SAM precursor, different than the first SAM precursor, as a part of the process gas, wherein the first and second SAM precursor sources are independently controllable to control a relative percentage of the first and second SAM precursors in the process gas with respect to each other.

The invention discloses a hole transport layer precursor solution, a perovskite solar cell, a preparation method of the perovskite solar cell and a power utilization device, and belongs to the technical field of solar cells. The hole transport layer precursor solution comprises a self-assembled single-layer material, a solvent and an additive; the solvent comprises dimethyl sulfoxide, diethylene glycol butyl ether and methanol; the additive comprises triethyl phosphate. The hole transport layer precursor solution is not prone to volatilization, good in stability and suitable in viscosity and volatility, the prepared self-assembled single-layer material layer wet film is low in drying speed and can be stably stored for a long time, full contact between an SAM material and a substrate is promoted, the SAM material is evenly distributed on the substrate, and the hole transport layer is formed. Therefore, the repeatability and the photoelectric conversion efficiency of the perovskite assembly can be improved, and the large-area processing requirement can be met.

The invention discloses a nano-zirconia ceramic membrane constructed based on layer-by-layer self-assembly as well as a preparation method and application of the nano-zirconia ceramic membrane. Belongs to the field of ceramic membrane material preparation. The invention aims to solve the problem of single function in the ceramic membrane filtration process. The method comprises the following steps: dispersing yttrium-doped nano zirconium dioxide in deionized ethanol, then adding a dispersing agent, performing ultrasonic treatment until the mixture is uniform, then adding a binder and glycerol, and performing stirring until the mixture is uniform to obtain a suspension; sequentially carrying out ultrasonic cleaning on the alumina-based ceramic membrane by using ethanol and deionized water, and drying; adopting a layer-by-layer assembly technology, and depositing the suspension on the treated alumina-based ceramic membrane in a direction alternate blade coating mode; and drying, sintering and naturally cooling to room temperature. According to the method, an efficient adsorption interface can be introduced while the excellent separation performance of the basement membrane is reserved, and function collaboration and strengthening are achieved.

The invention belongs to the field of photoelectric detectors, and discloses a flexible vacuum ultraviolet photoelectric detector and a preparation method thereof, and the preparation method comprises the steps: enabling a hexagonal boron nitride nanosheet dispersion liquid to form a self-assembly layer through an oil-water self-assembly mode; transferring the self-assembly layer to the flexible substrate; performing radio frequency magnetron sputtering on the hexagonal boron nitride nanosheet dispersion liquid to form a layer of hexagonal boron nitride film on the self-assembly layer to form a sputtering layer; and photoetching an interdigital electrode pattern on the sputtering layer, and evaporating a Ni electrode pattern on the sputtering layer to obtain the flexible vacuum ultraviolet photoelectric detector. The detector has excellent response to deep ultraviolet light with the wavelength smaller than 200 nm, the light-dark current ratio reaches 655 under illumination of 185 nm, good flexibility is achieved, and the typical attenuation rate of light current is smaller than or equal to 10% when the detector is bent. The method solves the problem that the thin film is difficult to directly grow on the flexible substrate, and has the characteristics of simplicity and easiness in large-scale preparation.

The present invention discloses a photoelectric material based on an ultrathin protein nanofilm and a preparation method thereof. By breaking the disulfide bonds of the protein, the protein undergoes a phase transition and self-assembles at the solid-liquid interface to form an ultrathin protein nanofilm with a secondary structure mainly composed of α-helix. A metal coating is then prepared by magnetron ion sputtering or a chemical method to obtain the photoelectric material. The preparation method of the ultrathin protein nanofilm of the present invention is simple and has good stability, light transmittance, and good non-toxic biocompatibility. Moreover, since the surface of the ultrathin protein nanofilm has multiple functional groups such as free thiol, carboxyl, and amino groups, stable adhesion to the metal coating can be achieved. The photoelectric material of the present invention can be used to prepare secret information devices, Raman enhancement devices, smart window devices, printed devices, and tactile sensors. The metal layer can maintain stable performance in various harsh environments.