374 results about "Self assembled" patented technology

The invention provides a self-assembled hypha flexible carbon electrode material and a preparation method and application thereof, and belongs to the technical field of battery packs. The preparation method of the self-assembled hypha flexible carbon electrode material comprises the following steps: treating basswood with white rot fungus mycelia, crushing and roasting to obtain porous basswood / hypha composite carbon powder; and putting the porous basswood / hypha composite carbon powder and a carbon nanotube into a sterilized conical flask containing a potato glucose culture solution, inoculating gloeophyllum trabeum, performing activation culture, adding a dopamine hydrochloride aqueous solution, performing polymerization after ultraviolet irradiation, taking out and tabletting to obtain the self-assembled hypha flexible carbon electrode material. In the preparation process of the self-assembled hypha flexible carbon electrode material, the flexible carbon electrode material is synthesized by taking porous basswood / hypha composite carbon powder as a matrix, taking gloeophyllum trabeum hypha as an adhesive, taking polydopamine as a reinforcing agent and adding carbon nanotubes as a conductive reinforcing material, so that the technical problem of poor cycle performance of a lithium ion battery is solved.

The invention discloses a hole transport layer, a preparation method thereof and a solar cell. The hole transport layer comprises an SAM (single self-assembled monomolecular layer) material and a buried material, and the buried material comprises F-type phosphate group-containing molecules. According to the invention, the technical problems of poor coverage of a hole transport material SAM on a transparent conductive oxide (TCO) substrate and weak transmission capability in a perovskite cell or a laminated cell in the prior art can be solved. The hole transport layer is more uniform, the interface transmission loss is smaller, and the filling factor and the conversion efficiency are remarkably improved when the hole transport layer is used for the solar cell.

The invention relates to the technical field of solar cells, in particular to a perovskite solar cell based on a mixed self-assembly monomolecular layer and a preparation method of the perovskite solar cell. The perovskite solar cell based on the hybrid self-assembly monomolecular layer comprises a hybrid self-assembly monomolecular hole transport layer; the mixed self-assembly monomolecular hole transport layer contains polymerized SAM and monomolecular SAM; the mass ratio of the polymerized SAM to the monomolecular SAM is (1-10): 1. Two self-assembled monomolecular materials with different end groups are mixed to serve as the hole transport layer, and meanwhile, the photoelectric property and the mechanical property of the flexible f-PSCs are optimized; according to the flexible perovskite solar cell, agglomeration of a traditional SAM material is reduced, the coverage degree difference of the SAM material on the substrate is improved, meanwhile, the adhesive force between the perovskite layer and the flexible substrate is improved, and the photovoltaic performance and mechanical stability of the flexible perovskite solar cell are improved.

The invention relates to a solar cell and a preparation method thereof. The solar cell comprises a light absorption layer, a hole modification layer and a hole transmission layer which are arranged in a stacked mode. The hole modification layer is located between the light absorption layer and the hole transmission layer; the material of the hole modification layer comprises at least one of self-assembled monomolecular layer materials and at least one of polyoxometallate. According to the solar cell, the hole extraction capability of the hole transport layer can be improved, the hole mobility of an interface is improved, and the high photoelectric conversion efficiency of the solar cell is further achieved.

The invention discloses a method for in-situ lossless repair of an attenuated lithium manganate positive electrode material, which specifically comprises the following steps: adding the attenuated lithium manganate material into a lithium hydroxide solution, supplementing lithium to an original value by a hydrothermal method, repairing the component and structure defects of attenuated LiMn2O4 by combining high-temperature roasting, and recycling and regenerating lithium manganate particles with severely attenuated capacity. The lithium manganate positive electrode material is directly recovered by the lossless method, and the chemical components and crystallinity of the invalid positive electrode material in various health states are reconstructed, so that the invalid positive electrode material can be repeatedly used in the lithium ion battery. Finally, the treated recycled powder material is coated by a metal organic framework (MOFs) self-assembly method, so that the electrochemical performance of the treated powder material is further improved. The method is simple, environmentally friendly and low in energy consumption, has obvious advantages compared with a traditional hydrometallurgy battery recovery method, and lays an important foundation for sustainable manufacturing of energy materials.

The invention discloses a nitrogen-doped multilayer rose-shaped hard carbon material as well as a preparation method and application thereof, and belongs to the technical field of battery materials. A precursor of the nitrogen-doped multi-layer rose-shaped hard carbon material is prepared by adopting a solid-liquid self-assembly method, and then the precursor is calcined, so that the final nitrogen-doped multi-layer rose-shaped hard carbon material can be obtained. The prepared nitrogen-doped porous carbon material has more mesopores and defects, is unique in structure and uniform in shape, and can be used as a sodium ion battery negative electrode material. The nitrogen-doped multilayer rose-shaped hard carbon material prepared by the invention is a material with immunity to environmental influence, belongs to a mesoporous carbon material with stable chemical components and controllable shape in the porous field, has the advantages of regular structure, relatively good stability and the like, and has the properties of high capacity, good rate and the like as a negative electrode material.

The application belongs to the technical field of porous adsorption membrane materials, and discloses a titanium lithium ion porous adsorption membrane material and a self-assembly preparation method and application thereof. The preparation method comprises the following steps: dissolving a film-forming polymer in a dispersion liquid containing MXene nanosheets to form a uniform precursor liquid; the MXene nanosheet is a carbide, nitride or carbonitride of a transition metal with a single-layer structure; dispersing a titanium lithium composite oxide in the precursor liquid to form a casting solution; coating the casting solution on a support, and then performing phase inversion by using pure water to obtain a matrix film; placing the matrix film in a lithium elution liquid for immersion washing, replacing lithium ions in the matrix film, and causing a self-assembly reaction of the titanium lithium composite oxide in the matrix film, so that the titanium lithium ion porous adsorption membrane material is obtained. The application innovatively introduces MXene nanosheets and a polysulfone matrix film, fixes the MXene nanosheets on the polysulfone matrix film as an in-situ growth substrate of the titanium lithium composite oxide, and the obtained membrane material has a high adsorption capacity.

A method of making a razor blade by forming a cutting edge on a substrate having an outer bonding surface. A first self-assembled monolayer having a non-fluorinated organic material is deposited on the outer bonding surface of the substrate.

The invention provides a multi-mode visual touch fusion sensor of a non-coaxial light path, which realizes multi-mode cooperation of a visual mode and a visual touch mode by performing non-coaxial arrangement on the optical axis of a camera and the central normal of a touch plane on a structural level; a virtual binocular system is constructed under the condition of a single camera by means of a free-form surface light splitting biprism, the number of devices and the assembling freedom degree are reduced, and therefore the integration degree and calibration consistency are improved; a semi-transparent and semi-reflective optical element is matched with an LED light-emitting unit time sequence and a control circuit to realize automatic and rapid mode switching, so that the long-term reliability is improved, and the switching service life is prolonged; through the collaborative design of the self-assembled metal nano reflective coating and the thin polyurethane packaging layer, a high-contrast and wear-resistant deformation image is obtained on the premise of not sacrificing the tactile sensitivity, and finally continuous acquisition of a target pose and contact parameters is realized. And the comprehensive requirements of accurate grabbing and touch closed-loop control on stable imaging, rapid switching, easy integration and high reliability are met.

The application discloses a fused benzothiadiazole derivative, a preparation method thereof, a hole transport material, a hole transport layer and a perovskite battery, and belongs to the technical field of battery materials.The fused benzothiadiazole derivative can be applied as a hole transport material, contains a fused benzothiadiazole unit in a mother nucleus, has a large conjugate core, and has a D-A-D type molecular structure, so that the intermolecular interaction can be strengthened, and the extraction of holes can be promoted.In addition, the fused benzothiadiazole derivative also contains a phosphate group, so that a self-assembled monolayer can be formed in the form of a bidentate bond or a tridentate bond on a transparent conductive glass to improve the contact between the hole transport layer and an ITO interface.Further, the fused benzothiadiazole derivative also contains rich heteroatoms such as sulfur, nitrogen and oxygen, can be used as a Lewis base to passivate free lead iodine ions at the interface, so that the loss caused by charge recombination can be reduced, and the performance of an inverted perovskite solar cell can be improved.

This disclosure provides an optically active nanocomposite material having a textured substrate and a multilayer optical stack comprising multiple nanosheets. The nanosheets may be chiral and composed of materials such as transition metal chalcogenides, MXenes, or nanocarbon. The optically active nanocomposite material exhibits linear birefringence (LB) and linear dichroism (LD), and optionally circular dichroism (CD). The nanocomposite material also exhibits optical asymmetry. g The factor may be greater than or equal to 1. Furthermore, the nanocomposite material exhibits thermal stability, for example, remaining stable at temperatures above or equal to about 250 °C. This disclosure also provides different methods for preparing such nanocomposite materials using a layer-by-layer self-assembly (LBL) process.

The invention relates to the technical field of solar cells, in particular to a self-assembled monomolecular hole transport material, a preparation method and application thereof, a perovskite solar cell, a preparation method thereof and a photovoltaic module. The self-assembled monomolecular hole transport material provided by the invention has a structure as shown in a formula I. In the formula I, A1, A2 and A3 are respectively and independently anchor groups or hydrogen atoms; the anchoring groups are independently selected from phosphate groups respectively; g is selected from a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted acridinyl group, a substituted or unsubstituted phenothiazinyl group, and a substituted or unsubstituted phenoxazinyl group. The self-assembled monomolecular hole transport material provided by the invention has stronger anchoring binding capacity, conjugation in molecules is enhanced through the aromatic connection unit, and transport of carriers is facilitated; polyphosphonic acid anchoring in the self-assembled monomolecular hole transport material provided by the invention can enhance adsorption and uniformity of molecules, and a formed hole transport interface has better charge transport and defect passivation effects.

The application provides a preparation method of a perovskite / crystalline silicon laminated solar cell and the cell. The self-assembled monolayer is blocked from adsorbing on a tunneling layer through a non-full-coverage insulating layer, so as to achieve the effect of a non-full-coverage hole transport layer. On one hand, the lateral conduction network of the hole transport layer can be directly cut off, so that the holes can only migrate longitudinally along the preset transport channel area, and the hole diffusion loss is reduced from the root; on the other hand, the insulating layer is used as a blocking material, and due to the excellent chemical inertness and thermal stability, the insulating layer can be used as a part of interface barrier to inhibit the chemical reaction between the perovskite layer and the SAM layer, slow down the decomposition rate of the perovskite crystal caused by interface erosion, and moreover, the non-full-coverage design can reduce the total amount of SAM molecules by 40%-55%, the SAM molecules in the transport channel area are not densely accumulated, and the problems of transport channel rupture and defect increase caused by molecular aggregation in the traditional structure are avoided.

This invention relates to an air electrode material and its preparation method. The preparation method includes: using metal salts of Ce, Pr, La, Ba, and Sr, metal salts of Co, and a fluorine source as raw materials, and preparing a fluorine-containing perovskite precursor according to a stoichiometric ratio; pretreating the precursor and then sintering it to obtain a composite powder; the composite powder includes a fluorine-containing perovskite main phase and a fluorine-containing CeO2 nanophase; pulverizing and sieving the composite powder to obtain air electrode powder; the fluorine-containing perovskite main phase is an A-site high-entropy perovskite oxide; the fluorine-containing CeO2 nanophase is precipitated through the self-assembly of some Ce elements during sintering; the fluorine-containing CeO2 nanophase is dispersed inside the main phase grains or at grain boundaries, and forms a strongly coupled heterogeneous interface with the main phase. This invention solves the technical problems of poor surface exchange activity, bulk diffusion transport, and long-term stability of existing air electrodes.

The invention provides a meat preservation method with self-assembled nanoparticles cooperating with a three-layer controlled release film. The method comprises the following steps: S1, selecting fresh meat, removing impurities, cleaning, detecting the muscle fiber density and the total number of initial bacterial colonies, classifying the meat into I / II / III classes according to the standard, and pre-cooling and discharging acid for 18-24 hours under the conditions that the temperature is 0-2 DEG C, the air speed is 0.3-0.5 m / s and the humidity is 85-90%; s2.2, graded loading of dormant-state self-assembled nanoparticles at the temperature of 2-4 DEG C, I-type dip coating, II-type ultrasonic-assisted dip coating, III-type high-pressure atomization spraying and air drying in a blast environment after loading; s3, filling three layers of controlled release films, vacuumizing to-0.095 to-0.09 MPa, keeping for 20 seconds, filling customized controlled atmosphere according to grades, and then performing heat sealing; and S4.0, refrigerating at 0-4 DEG C. By constructing a synergistic mechanism that the self-assembled nano-particle adsorption layer recognizes a decay signal in a close range and the three layers of controlled release films release drugs in a linkage mode and strengthen barrier, the limitation that traditional preservation is passively inhibited and active ingredients are lost quickly is broken through, and the technical problems that bacteriostasis is not lasting, the water-retaining property is poor and sensory quality is prone to deterioration are fundamentally solved; and the fresh-keeping efficiency and the meat quality are both improved.

This invention discloses a gradient pore self-assembled drag-reducing agent for nano-fracturing fluids and its preparation method. The drag-reducing agent comprises nanoparticles with a three-layer gradient self-assembled structure, the particle size of which is no greater than 50 nm. The three-layer gradient self-assembled structure comprises, from the inside out, a hydrophobic core layer, a middle viscoelastic layer, and an outer hydrophilic layer, and is composed of the following by mass percentage: hydrophobic core layer: 25–35% nonionic surfactant, 15–20% organic solvent; middle viscoelastic layer: 30–40% polymer; outer hydrophilic layer: 15–20% zwitterionic surfactant. This invention, through its three-layer gradient self-assembled structure design, integrates multiple functions such as high-efficiency drag reduction, strong proppant carrying capacity, reservoir modification, deep penetration, and temperature and salt resistance. It comprehensively solves the technical bottlenecks of existing technologies, such as low drag reduction efficiency, high reservoir damage, single function, and poor environmental adaptability, providing a novel fracturing fluid additive with superior performance for the efficient development of unconventional oil and gas resources.

The invention discloses a solar cell, a preparation method thereof and an electric device. The solar cell comprises a substrate, a hole transport layer, a perovskite light absorption layer, an electron transport layer and an electrode which are stacked. Wherein the material of the hole transport layer comprises a self-assembled monomolecular material and a product obtained by carrying out nucleophilic substitution reaction on a functional material, and the functional material comprises a nucleophilic group substituted C5-C20 aromatic compound; the self-assembled monomolecular material comprises an aromatic compound with an electrophilic central group, and the nucleophilic group and the electrophilic central group are subjected to the nucleophilic substitution reaction. According to the material of the hole transport layer in the solar cell, halogen in the self-assembly monomolecular material and the functional material is replaced by nucleophilic functional groups, the molecular dipole moment and an interface built-in electric field are enhanced, the self-assembly monomolecular material is prevented from being agglomerated, a uniform and compact hole transport network is formed, and the performance of the solar cell is improved.

Metallization interconnect structures, integrated circuit devices, and methods related to high aspect ratio interconnects are discussed. A self assembled monolayer is selectively formed on interlayer dielectric sidewalls of an opening that exposes an underlying metallization structure. A first metal is formed on the underlying metallization structure and within only a bottom portion of the self assembled monolayer. The exposed portion of the self assembled monolayer is removed and a second metal is formed over the first metal.

This invention relates to the field of solar cell technology, and in particular to a self-assembled monolayer based on a fluorinated alcohol solvent, its preparation method, and a solar cell. The method involves adding a fluorinated alcohol as a co-solvent to a solution of the self-assembled monolayer material, which is then deposited onto the surface of a metal oxide electrode to construct a hole transport layer. The hydroxyl groups of the fluorinated alcohol can form hydrogen bonds with the phosphorus-oxygen double bonds in the phosphonic acid groups, reducing the electron density of the phosphorus atoms and thus weakening the chemisorption barrier of the self-assembled monolayer on the electrode surface, promoting the formation of a uniform and dense monolayer film. The resulting interface layer effectively suppresses interface defects and promotes hole extraction. Organic solar cells prepared using this method exhibit excellent performance in terms of energy conversion efficiency, stability, and large-area processing adaptability. This invention features a simple process, low cost, and good reproducibility, and has promising prospects for industrial application.

A system, method, and distributed control protocol for autonomous physical structure formation and reconfiguration using programmable matter. The system comprises a plurality of discrete, mechanically interlocking robotic units (“voxels”), each voxel including on-board power storage, computation, sensing, actuation, and selectively switchable inter-unit coupling mechanisms. The voxels are governed by a Symbolic Morphogenic Architecture Kernel configured to receive a digital volumetric structure definition and to compute distributed motion and coupling instructions for the voxels without reliance on external fabrication machinery. Upon receipt of a configuration instruction, the Kernel generates a coordination field that guides stochastic or deterministic voxel movement, enabling the aggregate mass to transition between unlocked and locked states and thereby flow into, rigidize, disassemble, or reshape into a target physical structure. The protocol further includes a distributed structural verification mechanism wherein local voxel processors continuously evaluate load, gravity, and connectivity constraints.

The invention belongs to the technical field of oilfield chemistry, and discloses a preparation method of an efficient nano-enhanced oilfield fracturing fluid, which remarkably improves the performance, environmental protection property and high efficiency of the fracturing fluid through the combination of a self-adjusting mechanism of self-assembled nanoparticles and an enzyme-nanotechnology. The self-assembled nano-particles can automatically adjust the form or the structure when the external environment changes, so that the rheological property and the sand-carrying capacity of the fracturing fluid are optimized, and enzyme is introduced as a biomolecule to be combined with the nano-particles, so that the fracturing fluid has self-healing and degradation functions, the environmental protection property and the adaptability of the fracturing fluid are effectively improved, and in the oil field fracturing process, the fracturing fluid has the advantages that the self-healing and sand-carrying capacity is greatly improved. The composite material not only can enhance the performance of the liquid, but also can reduce the pollution to the environment, and meets the requirement of sustainable development.

This invention discloses a method for preparing and applying a sodium borohydride-modified self-supporting anode for AEM water electrolyzers. Firstly, an amorphous ternary metal hydroxyl oxide precursor is grown in situ on a nickel substrate via room temperature liquid phase deposition. The process involves the presence of Co in solution. 2+ Fe 3+ Ni ions are introduced through slight corrosion of the nickel foam matrix. 2+ The ions, the three, and the OH- produced by hydrolysis ⁻ Co-deposition occurs under the influence of dissolved oxygen, leading to the self-assembly of amorphous nanosheet structures on the substrate surface. Subsequently, a mild chemical reduction treatment with sodium borohydride solution is used to obtain a structurally stable and high-performance self-supporting electrode. The method described in this embodiment is mild, simple, low-cost, and has good versatility.

The application belongs to the technical field of photoelectric materials, and relates to a star-shaped self-assembled hole transport layer material, a preparation method and application thereof. The star-shaped self-assembled hole transport layer material comprises a star-shaped organic compound with a structure shown in general formula (1). The star-shaped organic compound takes an aromatic three-site group as a core, adopts a star-shaped bridging unit, and connects three benzo carbazole phosphate units. The star-shaped organic compound as a hole transport layer material of a photoelectric functional device is beneficial to the improvement of device efficiency and stability, and provides a reliable foundation for the industrialization development of perovskite solar cells and organic solar cells.

The invention discloses a method for constructing a self-assembled monomolecular layer based on phenothiazine heterocyclic compounds and preparing a perovskite solar cell, and belongs to the technical field of perovskite solar cells. According to the method, phenothiazine derivatives are used between a hole transport layer and a perovskite layer, so that the phenothiazine derivatives have the functions of promoting charge transport, improving the hole extraction rate, modifying a buried interface and promoting perovskite growth. The modified perovskite buried layer is obtained by spin-coating a phenothiazine derivative solution on the surface of nickel oxide. The phenothiazine derivative can optimize the energy level arrangement, improve the coverage uniformity, promote the subsequent crystallization and growth of perovskite, and contribute to the generation of a high-quality perovskite thin film. Meanwhile, the method can effectively reduce the cell efficiency loss caused by perovskite defects, and finally obtains an efficient and stable perovskite solar cell device.

The present disclosure provides a solar cell. The solar cell comprises a first electrode layer and a metal oxide layer that are stacked, and a self-assembled monolayer, a light absorption layer, and a second electrode layer that are arranged on the metal oxide layer, wherein the hydroxyl index of the surface of the metal oxide layer is 2.5-4.5.

The present invention relates to a substrate processing method and a system for the same. The substrate processing method comprises the steps of: vaporizing an organic inhibitor compound under reduced pressure from a porous medium impregnated with an organic inhibitor compound; and selectively depositing the vaporized organic inhibitor compound on a first region of the substrate under a first pressure for, for example, a predetermined time in a first chamber containing a substrate to form a self-assembled monolayer containing the organic inhibitor compound on the first region of the substrate.

The invention belongs to the technical field of perovskite solar cells, and particularly discloses a self-assembled monomolecular layer material with binaphthalene as a framework and a preparation method and application of the self-assembled monomolecular layer material. Phosphoric acid serves as an anchoring group, binaphthalene with a large pi conjugated system serves as the molecular framework, and the self-assembled monomolecular layer material is prepared. Intermolecular interaction can be effectively promoted, and molecular arrangement of molecules on an ITO conductive substrate can be regulated and controlled. By adjusting the side chain group of binaphthalene, the energy level of the material can be optimized, the work function of ITO can be improved, and efficient extraction and transmission of interface holes can be promoted. According to the synthesis method, the final product is obtained by oxidizing hydroxyl through phosphorus oxychloride, and the synthesis method has the advantages of being simple, high in yield, low in cost and the like. When the material is applied to a perovskite solar cell, the photoelectric conversion efficiency exceeding 25% can be obtained, and industrial application of the material is facilitated.

The invention discloses a micro-nano composite bi-pass aluminum oxide film with heterogeneous wettability as well as a preparation method and application of the micro-nano composite bi-pass aluminum oxide film. The preparation method comprises the following steps: carrying out single-side protection on a super-amphiphilic micro-nano composite aluminum oxide film, and then removing the aluminum oxide film on the unprotected side; etching to remove the unreacted aluminum substrate and aluminum oxide barrier layer to obtain a bi-pass aluminum oxide film; then hydroxylation modification is carried out to obtain a hydroxylated alumina membrane, and finally interface wettability adjustment is carried out to prepare the heterogeneous wettability micro-nano composite bi-pass alumina membrane. The prepared micro-nano composite bi-pass aluminum oxide film has a self-assembled micron hole in one side, a three-dimensional interpenetrating nano hole in a bulk phase and a nano hole structure in the other side, and the intrinsic wettability of the micro-nano composite bi-pass aluminum oxide film is a super-amphiphilic interface. And finally, accurate wettability regulation and control and heterogeneous wettability construction are realized through chemical and physical wettability modification strategies, the super-amphiphilic through-hole aluminum oxide can be changed into a Janus aluminum oxide film, and the film has an asymmetric conical structure gradient.

A method for selectively depositing material on a dielectric surface relative to a metal surface is disclosed. The metal surface is protected with a self-assembled monolayer comprising N-heterocyclic carbides before depositing a liner or barrier layer on an adjacent dielectric surface.

The application provides a preparation method of a self-assembled multilayer co-extrusion high-water-resistance high-toughness PE film, which comprises the following steps: using ultrahigh-viscosity polyethylene resin material as a surface layer, arranging a core layer in an alternating manner of low-viscosity polyethylene resin material and ultrahigh-viscosity polyethylene resin material, and co-assembling the surface layer and the core layer into a multilayer resin layer with an odd number of layers; using a multilayer co-extrusion technology to co-extrude the multilayer resin layer into a film to obtain the self-assembled multilayer co-extrusion high-water-resistance high-toughness PE film; the ultrahigh-viscosity polyethylene resin material has a melt index of less than 0.1 g / 10 min under a test condition of 21.6 KG / 190 DEG C; and the low-viscosity polyethylene resin material has a melt index of 0.5-2.0 g / 10 min under a test condition of 2.16 KG / 190 DEG C. By compounding the ultrahigh-viscosity polyethylene resin with other different types of polyethylene resin materials, designing a special hierarchical structure, utilizing the stress difference of the materials with different viscosities under the same mold to generate secondary flow, and self-assembling a petal-shaped or leaf-shaped interlayer structure, the barrier property of the film product is significantly improved, and the film has the characteristics of high toughness.