74 results about "Doped oxide" patented technology

The present invention provides a back-contact solar cell, a manufacturing method thereof, and a photovoltaic assembly in the field of photovoltaics. The back-contact solar cell includes a substrate and alternating first and second doped regions, a first passivation contact layer located in the first doped regions and a second passivation contact layer located in the second doped regions, a doped oxide layer including a first portion located on the surface of the first passivation contact layer and a second portion located in the second doped regions, and a connecting layer located on a portion of the first portion, surrounding a portion of the second portion, and electrically connected to the second passivation contact layer, and located on a side of the first passivation contact layer and electrically connected to the first passivation contact layer. [Effects] At the very least, the hot spot effect can be improved and the photoelectric conversion efficiency can be increased.

The invention relates to the technical field of brass materials, in particular to a high-strength and high-toughness brass material and a preparation method thereof.The preparation method comprises the steps that a porous oxide film layer is prefabricated on the surface of brass through plasma electrolytic oxidation, and an oxide film layer doped with double-bond silver-loaded graphene oxide is constructed on the surface of the brass; the preparation method comprises the following steps: firstly, preparing modified MXene, then preparing a photocurable hole sealing coating for hole sealing treatment, introducing double-bond silver-loaded graphene oxide and the modified MXene as fillers into the photocurable hole sealing coating, firstly performing sulfhydrylation on the MXene by using 3-mercaptopropyltriethoxysilane, and then grafting a double-bond-containing bis-benzimidazole ring derivative through light click to obtain the modified MXene; vinyl-terminated polyurethane is used as a cross-linking agent, o-phenyl phenoxyethyl acrylate, butyl acrylate, glycidyl methacrylate and octadecyl acrylate are compounded to serve as an acrylic monomer, a diluent and a solvent are introduced, a complex cross-linked network is constructed, and the service life of the brass material is prolonged.

The invention belongs to the technical field of target materials, and discloses a multi-element doped indium germanium oxide ceramic target material and a preparation method thereof. The ceramic target material comprises indium oxide, germanium oxide and doped oxide, and the doped oxide is one or two of cerium oxide, hafnium oxide or titanium oxide; the preparation method comprises the following steps: mixing In2O3 powder, GeO2 and doped oxide powder, carrying out ball milling, drying, grinding and sieving on the mixed powder to obtain mixed oxide powder, sequentially carrying out compression molding and cold isostatic pressing on the mixed oxide powder to obtain a target material green body, putting the target material green body in an oxygen atmosphere, and carrying out sintering to obtain the target material. A multi-element doped indium germanium oxide ceramic target material is obtained by using a multi-stage sintering method; by adjusting the doping elements in the target material, the proportion of the doping elements and the staged sintering temperature and time, the density and the conductivity of the target material can be remarkably improved.

The invention discloses preparation and application of a heterogeneous element doped oxide composite catalyst. The preparation method comprises the following steps: stirring an iron source, carbon nanotubes and triton in a solvent, adding a sodium borohydride solution at 2-10 DEG C, and rapidly stirring and uniformly mixing; aging the solution at 2-10 DEG C, collecting a sample, washing and drying; carrying out heat treatment to obtain a gamma-Fe2O3 precursor loaded on the carbon nano tube; stirring the gamma-Fe2O3 precursor loaded on the carbon nano tube and a heterogeneous element source in a solvent, evaporating to dryness and grinding; and performing heat treatment to obtain the composite catalyst. The gamma-Fe2O3 and carbon nanotube in-situ loaded composite material is used as a precursor, the structural stability of the substrate is effectively improved, meanwhile, the intrinsic catalytic activity of the gamma-Fe2O3 can be effectively improved through doping of multi-element heterogeneous elements, and compared with a fractional-step doping strategy, higher catalytic activity and higher utilization value are shown.

A method includes forming a semiconductor region, forming a gate spacer over the semiconductor region, forming a source / drain region aside of the semiconductor region, wherein the source / drain region is of p-type, and forming a gate dielectric over the semiconductor region. The gate dielectric is formed in a space between opposing portions of the gate spacer. A ruthenium oxide layer is formed over the gate dielectric, and acts as a part of a work-function layer of a gate electrode. The method further includes incorporating silicon into the ruthenium oxide layer.

The invention relates to the technical field of solid electrolyte material preparation, and discloses a method for preparing doped oxide-based solid electrolyte powder, and the method comprises the following steps: dissolving a titanium source substance, an aluminum source substance, a lithium source substance and a dopant source substance in one or a mixed solvent of two of ethanol, propanol and isopropanol to form a solution A; dissolving a phosphorus source substance, a lithium source substance and a dopant source substance in one or a mixed solvent of two of purified water and ethanol to form a solution B; under the stirring condition in a reaction kettle, dropwise adding the solution A into the solution B, and continuously stirring after dropwise adding to obtain a liquid precursor. Atom-level and molecular-level mixing dispersion of the oxide-based solid electrolyte raw materials in a liquid phase is realized, and compared with the characteristic that only macromixing can be realized in a ball milling method, the preparation method has the advantages that the preparation process is simple, and the cost is low. The uniformity of each component in the material can be obviously improved, so that the performance of the final material is improved.

The invention discloses a preparation method of an image sensor, which comprises the following steps of: after etching a groove on a substrate, depositing an oxide layer (BSG) doped with P-type ions on the surfaces of the groove and the substrate, introducing and activating the P-type doped ions by adopting a low-temperature enhanced diffusion and / or laser instantaneous thermal annealing process, and simultaneously, not increasing the thermal budget of a device. And the etching damage on the surface of the groove is repaired, and the groove isolation performance of the image sensor is improved.

The application discloses a non-noble metal and rare earth metal composite doped oxide photocatalyst and a preparation method thereof. The non-noble metal and rare earth metal composite doped oxide photocatalyst is prepared by using a liquid phase method or a solid phase method. The liquid phase method comprises the following steps: mixing and dissolving, hydrolysis gelation, high-temperature aging, solution replacement, drying and high-temperature heat treatment. The solid phase method comprises the following steps: mixing, drying and high-temperature heat treatment. The non-noble metal and rare earth metal composite doped oxide photocatalyst obtained by the application has the advantages of large specific surface area, high photocatalytic activity, long service period, uniform metal element dispersion and good application prospect in the fields of photocatalytic preparation of methane, methanol and formic acid and the like.

A ceramic material, includes: a magnesium oxide and a doped oxide, wherein the doped oxide includes cobalt tetroxide, europium trioxide or manganese dioxide, and wherein a weight ratio of magnesium oxide to the doped oxide is 97:1 to 85:12. In addition, the disclosure also provides a method for manufacturing a ceramic material, including: mixing a magnesium oxide powder and a doped oxide powder, and sintering the mixed magnesium oxide powder and the doped oxide powder at a temperature of 1300° C. to 1650° C. to obtain the ceramic material, wherein the doped oxide powder includes a cobalt tetroxide powder, a europium trioxide powder or a manganese dioxide powder, and wherein a weight ratio of the magnesium oxide powder to the doped oxide powder is 99.9:0.1 to 92:8.

Embodiments of the present application relate to the field of photovoltaic power generation and provide a back-contact solar cell, a method for manufacturing the same, and a photovoltaic power generation assembly. The back-contact solar cell includes a substrate and alternately arranged first doping regions and second doping regions, a first passivation contact layer located in the first doping region and a second passivation contact layer located in the second doping region, a doping oxide layer including a first portion located on the surface of the first passivation contact layer and a second portion located in the second doping region, and a connecting layer located in a portion of the first portion, surrounding a portion of the second portion and electrically connected to the second passivation contact layer, and located on the side surface of the first passivation contact layer and electrically connected to the first passivation contact layer. According to the back-contact solar cell provided by embodiments of the present application, at the very least, the hot spot effect can be improved and the photoelectric conversion efficiency can be improved.

The application discloses a method for improving the performance of oxide solid electrolyte by calcium doping, and belongs to the technical field of solid-state batteries. The method comprises the following steps: mixing raw materials containing a calcium source, a sodium source, a rare earth source and a phosphorus source to obtain a precursor; sintering the precursor to obtain a calcium-doped sodium superionic conductor precursor; and performing ion exchange on the precursor and a lithium salt to obtain a calcium-doped oxide solid electrolyte with a chemical formula of Li 3+ x La 1‑x Ca x (PO4)2, and 0 < x <= 0.1. By partially replacing lanthanum ions with calcium ions, lithium vacancies are introduced, the crystal lattice is relaxed, and the lithium ion migration path is optimized by using the charge compensation mechanism, so that the room-temperature ionic conductivity of the material is significantly improved. The method has low raw material cost, simple process and strong universality, can be expanded to various oxide solid electrolyte systems such as NASICON and garnet, and has good application prospect in the field of solid-state lithium ion batteries.

The invention relates to the technical field of barium titanate-based ceramic preparation, in particular to a rare earth ion doped barium titanate-based ceramic material and a preparation method thereof.High-purity tetragonal-phase barium titanate is prepared through a hydrothermal synthesis process, doped ions comprise two rare earth ion elements including europium and dysprosium, and one or more of sodium, magnesium, bismuth, niobium, cobalt, lanthanum and the like are cooperatively doped; barium titanate powder and ion-doped oxide powder are mixed according to a certain proportion, and the ion-doped barium titanate ceramic is prepared through solid-phase sintering. By adopting the formula and the preparation method disclosed by the invention, a barium titanate-based ceramic capacitor product with excellent dielectric property, high stability and low loss can be obtained, and the preparation method is suitable for preparing a high-temperature and high-performance multilayer ceramic capacitor.

The invention discloses a back contact solar cell, a preparation method thereof, a cell module and a photovoltaic system. Comprising the following steps: preparing a first tunneling oxide layer, a first doped layer and a doped oxide layer on a backlight surface of a silicon substrate; removing the doped oxide layer, and performing laser oxidation on the first doped layer to form a first barrier layer; removing the first tunneling oxide layer and the first doping layer corresponding to the second region, and preparing a second tunneling oxide layer, a second doping layer and a second barrier layer on the surface of the silicon substrate corresponding to the first region and the second region; removing the second barrier layer corresponding to the first region and the second barrier layer at the adjacent position of the second region and the first region, and dividing the second region into a spacer region and a third region; removing the second tunneling oxide layer, the second doping layer and the first barrier layer corresponding to the first region; removing the second barrier layer corresponding to the third region; and removing the second tunneling oxide layer and the second doping layer corresponding to the spacer region to obtain the back contact solar cell with relatively high conversion efficiency.

The invention discloses a rare earth doped perpendicular magnetic anisotropy oxide thin film and a preparation method thereof, and relates to the field of hard magnetic rare earth element doped oxide thin film materials, the rare earth doped perpendicular magnetic anisotropy oxide thin film has (001) plane crystal orientation and comprises a substrate and a thin film layer, the substrate is MgAl2O4 (001), and the thin film layer is LaxNi1-xCo2O4 (001). According to the rare earth doped perpendicular magnetic anisotropy oxide thin film and the preparation method thereof, lattice strain caused by mismatching of ion radius sizes can be overcome, lanthanum is doped into a crystal structure of spinel oxide NiCo2O4, a radio frequency magnetron sputtering preparation process is adopted, La0. 05Ni0. 95Co2O4 and La0. 1Ni0. 9Co2O4 target materials are adopted, and the rare earth doped perpendicular magnetic anisotropy oxide thin film is prepared. A series of La0. 05Ni0. 95Co2O4 and La0. 1Ni0. 9Co2O4 films with different thicknesses are prepared, the obtained films have stable vertical magnetic anisotropy, the Curie temperature is above room temperature, and the films have excellent conductivity and good performance.

Disclosed are a light emitting diode and a method of manufacturing the same. The light emitting diode includes a second substrate, a bonding layer on the second substrate, a second semiconductor layer on the bonding layer, a quantum well layer on the second semiconductor layer, and a first semiconductor layer on the quantum well layer. The bonding layer of the light emitting diode of the present invention employs a doped oxide layer, and a doped element in the bonding layer absorbs moisture accumulated in the bonding layer during a high temperature process to prevent the epitaxial layer from peeling off.

This invention relates to the field of electrochemical catalytic materials technology, and discloses a high-performance electrode catalytic material and its preparation method. The material has a hierarchical porous core-shell structure, composed of a Cu-Ni-Co ternary alloy core, an N-S-P co-doped carbon transition layer, and an Fe-Mn dual-doped oxide shell in a specific ratio. The preparation employs a stepwise hydrothermal-calcination method, which is mild, environmentally friendly, and easily scalable. This material is adaptable to acidic and alkaline electrolysis environments and exhibits excellent HER, OER, and [other properties not specified in the original text]. CO2 Reduction catalytic activity, C2+ With a Faraday efficiency of ≥85.3% and an activity decay of ≤4.2% after 1000 hours of continuous catalysis, it is low in cost, highly stable, and suitable for various scenarios such as water electrolysis for hydrogen production and fuel cells, showing great potential for industrial application.

Provided are: colloidal particles of a Ti-containing oxide and a sol thereof which retain a high refractive index and have excellent light resistance; and methods for producing the particles and the sol.　The colloidal particles of a Ti-containing oxide have an equivalent-circle diameter, determined by analyzing a transmission electron photomicrographic image, of 5-50 nm. Throughout the whole colloidal oxide particles, Zn and / or Fe is distributed and Nb and / or Ta is distributed.

This invention relates to the field of brass material technology, specifically a high-strength, high-toughness brass material and its preparation method. A porous oxide film is pre-formed on the brass surface through plasma electrolytic oxidation. A double-bonded silver-loaded graphene oxide-doped oxide film is then constructed on the brass surface. A photocurable sealing coating is then prepared for sealing. In the photocurable sealing coating, double-bonded silver-loaded graphene oxide and modified MXene are introduced as fillers. MXene is first thiolated with 3-mercaptopropyltriethoxysilane, and then grafted with a double-bonded dibenzimidazole ring derivative via photo-clicking to obtain modified MXene. A vinyl-terminated polyurethane is used as a crosslinking agent, and a complex crosslinking network is constructed using a blend of o-phenylphenoxyethyl acrylate, butyl acrylate, glycidyl methacrylate, and octadecyl acrylate as acrylic monomers. A diluent and solvent are introduced to extend the service life of the brass material.

The application belongs to the technical field of target materials, and particularly relates to a tin oxide-based composite target material and a preparation method thereof. The tin oxide-based composite target material provided by the application comprises tin oxide, doped oxide and sintering aid, the doped oxide is antimony pentoxide, vanadium pentoxide, nickel oxide and tungsten trioxide, and the sintering aid is magnesium oxide and yttrium oxide. The application uses antimony pentoxide, vanadium pentoxide, nickel oxide and tungsten trioxide as the doped oxide, effectively improves the electrical and optical properties of the target material; uses magnesium oxide and yttrium oxide as the sintering aid, refines the grains, and improves the density and mechanical properties of the target material; uses the sol-gel method to realize atomic-level mixing of part of elements, then uses the high-energy ball milling method to realize atomic-level doping, reduces the distribution deviation of the elements in the matrix, uses the discharge plasma furnace to realize sintering, and reduces the volatilization loss of the elements and the pore defects in the target material.

The invention relates to the technical field of paint coatings, in particular to a coating material for a heat dissipation aluminum pipe and a preparation process thereof.The coating material for the heat dissipation aluminum pipe achieves unification of heat conduction, heat radiation, corrosion prevention and surface self-maintenance performance through reasonable design and synergistic integration of organic silicon modified acrylic resin and multiple functional components; wherein the modified composite inorganic nano filler is composed of a boron nitride nanosheet with high thermal conductivity and electrical insulation, nano aluminum oxide and a small amount of graphene oxide, a continuous and stable three-dimensional heat conduction path is formed in a resin matrix, and the conduction efficiency of heat in the thickness direction of the coating is effectively improved; meanwhile, the coating modified silicon carbide micro powder and the rare earth doped oxide have excellent heat radiation capacity in the infrared band, heat on the surface of the aluminum pipe can be efficiently radiated into the environment in the form of electromagnetic waves, and therefore the overall heat dissipation effect is remarkably enhanced under the condition that convection is limited, the two mechanisms of heat conduction and radiation supplement each other, and the heat dissipation efficiency is improved. And the performance bottleneck of a single heat dissipation path is broken through.

The application discloses a kind of Ni doped nano SnO2 semiconductor HCHO sensing materials and preparation method and application thereof, and the preparation method of sensing material includes the following steps: step one, Sn salt-Ni salt solution is configured;Step two, using supercritical hydrothermal synthesis (CSHS) reaction device, Sn salt-Ni salt solution is contacted with supercritical water and crystallization is generated nano doped oxide, and reaction liquid is discharged and collected after cooling, and the crystalline material is separated, i.e. the Ni doped nano SnO2 semiconductor HCHO sensing material of the application.The Ni doped nano SnO2 semiconductor HCHO sensing material prepared by the method of the application has good structural consistency and excellent sensing performance.

The application discloses a three-layer structure pressure-sensitive ceramic containing only a single double-Schottky grain boundary barrier and a sol-gel preparation method and application thereof, and belongs to the technical field of pressure-sensitive materials. A solid-phase sintering method is adopted, ZnO is used as raw material, oxide doped ZnO ceramic green bodies are obtained by doping oxide and pressing, a sol-gel solution containing Bi elements is coated in the middle of the ZnO ceramic green bodies doped with metal oxide, and ZnO green body-rich Bi layer-ZnO green body three-layer structure bodies are obtained by pressing. After sintering, the three-layer structure pressure-sensitive ceramic containing only a single double-Schottky grain boundary barrier with simple structure is obtained, which comprises two ZnO ceramic layers and a middle Bi-rich layer. Based on the structure, the structure, performance and conductive mechanism of the single double-Schottky grain boundary barrier in the ZnO pressure-sensitive ceramic have obvious advantages, the single ZnO grain-grain boundary-ZnO grain structure formed in the complex structure of the conventional ZnO pressure-sensitive ceramic can be simulated, and this provides strong evidence for exploring the internal characteristics of the polycrystal.

The invention discloses an oxide-doped LaB6 polycrystalline material and a preparation method and application thereof.The preparation method comprises the steps that lanthanum hexaboride and metal oxide are mixed, ball-milled to be uniform and dried to obtain first powder, the metal oxide is an oxide of M, and M is Al, Zr and Ti; the first powder is placed in a mold, the first powder is located in the center of the mold and has the same apparent density, in the inert gas atmosphere, the pressure is increased from the pressure P1 to the pressure P2, heat preservation is carried out for 0.5-3 h at the pressure P2 and the temperature of 1400-2000 DEG C, hot pressing sintering is carried out, cooling is carried out, meanwhile, pressure preservation is carried out for 0-3 h at the pressure P2, the LaB6 polycrystalline material doped with the oxide is obtained, the P1 ranges from 5 MPa to 9 MPa, and the P2 ranges from 20 MPa to 60 MPa. By adding the oxide phase, the sintering temperature of the pure LaB6 ceramic is reduced from 1975 DEG C to 1800 DEG C or below, the conductivity of the LaB6 ceramic is not deteriorated after doping, and the bending strength is effectively improved.

This invention relates to a Cr 3+ Doped oxide phosphors, their preparation methods and applications, wherein the Cr 3+ The structural formula of the doped oxide phosphor is AB 1‑x Cr x W₂O₈, wherein A comprises any one or a combination of at least two of Li, Na, K, Rb, or Cs; B comprises any one or a combination of at least two of Sc, Y, Ga, or Gd; 0.01 ≤ x ≤ 0.18. The Cr of this invention... 3+ Doped oxide phosphors, single-doped Cr 3+ When excited by green or red light, near-infrared emission is achieved, with an emission peak around 1060 nm, covering the deep red region to the near-infrared II region, making it an ultra-wideband near-infrared oxide phosphor; by exciting the phosphor with a matched LED, a near-infrared light emitting device can be obtained.

The invention provides a multi-element doped lithium cobalt oxide material as well as a preparation method and application thereof. According to the preparation method, a solution A containing cobalt and a first doping element, a solution B containing a precipitator and a solution C containing a second doping element are used; the solution A and the solution B are co-precipitated at a low pH value to form a first slurry, the solution C and the solution B are precipitated at a high pH value to form a second slurry, and in the two co-precipitation processes, the first slurry and the second slurry are continuously circulated to a reaction chamber where the first slurry and the second slurry are located, and a circular reaction is carried out to obtain the multi-element doped oxide precursor. And carrying out lithiation sintering to obtain the multi-element doped lithium cobalt oxide material. The two doping elements suitable for being precipitated under different pH values are precipitated in the two reaction chambers respectively, and the constructed slurry closed-loop circulation is matched, so that all the elements can be fully and uniformly subjected to bulk phase doping, and the performance of the multi-element doped lithium cobalt oxide material is improved.

The application discloses a preparation method and application of an iridium-modified ruthenium-based transition metal doped oxide catalyst, and the preparation method comprises the following steps: uniformly dispersing a ruthenium source precursor, a soluble salt of a transition metal ion and a carbon powder carrier in a solvent, drying, and then calcining under a hydrogen-argon mixed reducing atmosphere to obtain a carbon-loaded metal intermediate; calcining the carbon-loaded metal intermediate under an air atmosphere to obtain a ruthenium-based transition metal doped oxide; dispersing the ruthenium-based transition metal doped oxide and an iridium precursor in water, adding dropwise into an alkali solution, collecting a precipitate, and calcining to obtain a low-iridium ruthenium-based transition metal oxide catalyst, which can be applied to an acidic oxygen evolution reaction of proton exchange membrane electrolysis water. The carbon powder is used as the carrier, the catalyst has small and uniform particle sizes through the hydrogen reduction and air oxidation processes, the carbon source and the metal source have interaction to stabilize active elements, and the catalytic activity is effectively improved; a small amount of iridium is deposited on the surface to reduce the iridium content and improve the stability, and the low-iridium ruthenium-based transition metal oxide catalyst is high in efficiency and stability.

A solar cell and a preparation method thereof are provided. A method for preparing the solar cell includes following steps: forming an amorphous silicon layer on a tunneling oxide layer at a first side; forming a doped polycrystalline silicon layer in a first process by a diffusion doping treatment; forming a doped oxide layer on the doped polycrystalline silicon layer in a second process; and after the doped oxide layer is formed, doping the first side selectively and heavily by a laser doping process, and forming a selective emitter region in a heavily doped region.

This invention provides a composite electrolyte membrane comprising Li-doped oxide nanosheet materials and a method for preparing the same. The Li-doped oxide nanosheet materials comprise sheet-like structural units, each sheet-like structural unit having channels; the specific surface area of ​​the sheet-like structural units is 1-10 m². 2 / g; the sheet-like structural unit comprises oxide nanoparticles and Li oxides, with the Li oxides doped into the oxide lattice. This invention utilizes the unique structure of the prepared Li-doped oxide nanosheet material to improve the ionic conductivity, electrochemical window, cycle performance, and energy density of polymer electrolytes and solid-state lithium batteries.

The invention discloses a traceable anti-fake plastic brush wire and a preparation method and a special detection system thereof, and belongs to the technical field of plastic brush wire manufacturing and anti-fake tracing. The traceable anti-counterfeiting plastic brush wire is prepared by blending, melting, extruding and drafting a polymer base material and a tracking master batch; wherein the tracking master batch accounts for 0.1-5% of the total mass of the plastic brush wire; the tracking master batch comprises carrier resin, a marker and a dispersing agent, the marker has unique recognizable characteristics, and the marker is at least one of rare earth element doped oxide, nanoparticles modified by specific functional groups or customized copolymer. The preparation method comprises the steps of master batch preparation, blending, extrusion drafting and the like. The special detection gun can quickly and nondestructively detect characteristic signals of markers in the brush wires, and true and false identification and traceability are realized. The anti-counterfeiting property is high, the performance of the brush wires is not affected, detection is convenient, and the tracing anti-counterfeiting problem of brush wire products is solved.