2283 results about "Sputtering" patented technology

The invention discloses a large-scene three-dimensional reconstruction method based on three-dimensional Gaussian sputtering, and relates to computer graphics. The method comprises the following steps: collecting a multi-view image set of a large scene; obtaining a scene sparse point cloud according to the multi-view image set; performing monocular depth estimation on the multi-view image by using a pre-trained depth prediction network to obtain monocular depth estimation priori; the method comprises the following steps of: performing global training on a scene by utilizing scene sparse point cloud and monocular depth estimation prior to obtain an initial three-dimensional Gaussian model, and performing space grid division on the initial three-dimensional Gaussian model to obtain a plurality of scene blocks with axis alignment bounding boxes; setting image view angle data of each scene block; performing deep supervised training on the Gaussian ellipsoids in the plurality of scene blocks by using a parallel GPU (Graphics Processing Unit); combining the trained scene blocks to obtain a final three-dimensional Gaussian model; in view of low geometric structure reconstruction precision caused by only depending on color information of a multi-view image in large-scene three-dimensional rendering, the method improves the reconstruction precision of large-scene rendering.

The invention discloses a historical block scene three-dimensional reconstruction method and system based on Gaussian sputtering, and the method comprises the steps: collecting a historical block video sequence through a lightweight panorama camera, extracting a multi-frame panorama, and generating an image data set through a projection converter; monocular depth and normal estimation is carried out through a pre-training visual model, and a prior depth and normal graph data set of a historical block scene is constructed; sparse reconstruction is carried out on the multi-view image data set based on the SfM technology, initial point cloud and camera pose information are acquired, and a Gaussian ellipsoid is optimized in combination with prior depth and normal information; dynamically calculating the geometric width estimation value of the street, and guiding and adjusting the adaptive density of the Gaussian ellipsoids of the vertical surfaces on the two sides; rendering the optimized Gaussian ellipsoid through an improved rasterization renderer; and designing a multi-modal loss function and a regularization mechanism to optimize reconstruction and rendering results. According to the method, high-fidelity three-dimensional reconstruction of the historical block scene is realized, and the adaptability of the Gaussian sputtering method to the complex block scene is enhanced.

The invention discloses an indoor real scene three-dimensional reconstruction method based on improved 3D Gaussian sputtering, belongs to the technical field of three-dimensional reconstruction, and aims to complement initial point clouds in a self-adaptive manner through a designed feed-forward point cloud densification network, generate a high-density 3D Gaussian radiation field, fill scene missing details and avoid the problem of precision attenuation caused by lack of point cloud constraints. In the cost body optimization stage, a depth regularization loss module is designed by integrating global structure features, depth information is integrated into the optimization process, algorithm reasoning is accelerated, and object structure fuzziness is relieved; and finally, in combination with adaptive density control and Gaussian pruning, radiation field parameters and density distribution are finely adjusted, indoor scene reconstruction with double improvement of visual fidelity and structural integrity is realized, interactive application becomes possible, a real-time solution is provided for indoor scene reconstruction, and application of a three-dimensional reconstruction technology is widened.

The invention discloses a cross-source data three-dimensional reconstruction method and system based on improved Gaussian sputtering, and the method comprises the steps: collecting an unmanned plane inclined image and a ground panoramic image of a target region, and constructing a time-space correlation data set; based on multi-view geometric constraints, space-time coding matching point pairs are established through an adaptive feature pyramid, intelligent incremental cross-source data sparse reconstruction is carried out, and point cloud and camera parameters are output; adopting improved Gaussian sputtering, compressing a three-dimensional Gaussian kernel into a two-dimensional Gaussian primitive through double tangent vector constraint, and fitting surface geometry to realize multi-scale reconstruction; and optimizing primitive parameters by using a differentiatable renderer, completing multi-scale fine reconstruction through gradient back propagation, and generating a high-precision three-dimensional model. According to the method, multi-scale accurate geometric prior input and accurate camera poses are provided for three-dimensional reconstruction, the dependence on professional manual operation in a traditional three-dimensional reconstruction method is greatly reduced, and meanwhile, the geometric accuracy and visual fidelity of a reconstruction result are remarkably improved.

The invention relates to a multi-layer composite black film and a preparation method thereof. The multi-layer composite black film is formed by sequentially stacking a base material layer, a multi-layer film system and a top covering layer, the multi-layer film system is formed by alternately stacking a plurality of absorption layers and a plurality of oxide layers, the number of the layers is 7-30, an initial layer is an oxide layer, the refractive indexes of the oxide layers are the same (1.4-1.5), the thickness ratio of the oxide layers to the absorption layers is larger than 2, and the thickness ratio of the top covering layer to the absorption layers is larger than 1. And the thicknesses of the two layers are increased and then reduced from the substrate layer to the top covering layer. A buffer layer with gradually changed oxygen content is arranged between the oxide layer and the absorption layer, and both the oxide layer and the top covering layer are made of silicon dioxide. The preparation method comprises the following steps: providing the substrate layer, alternately depositing the absorption layer and the oxide layer by using a magnetron sputtering or electron beam evaporation process to form a multilayer film system, then forming the top covering layer, controlling parameters such as vacuum degree, power, temperature and the like during deposition, and forming the buffer layer in the same cavity. The multilayer composite black film has the inner surface reflectivity of less than 1% and the appearance surface reflectivity of less than 5%, and is simple in structure and low in preparation cost.

The invention discloses a high-precision three-dimensional scene and object reconstruction method, system, equipment and medium, belongs to three-dimensional scene reconstruction in the technical field of computer vision, and aims to solve the technical problem of low three-dimensional scene reconstruction quality in the prior art. The method comprises the steps of calculating external parameters of a camera, determining coordinates and colors of sampling points closest to the surface of a scene, updating and optimizing parameters and generating a scene geometric model and a rendering graph, the rendering graph is generated based on an SDF MLP network and a Color MLP network in combination with a Gaussian sputtering technology, and parameter optimization is carried out on Gaussian primitives, the SDF MLP network and the Color MLP network by utilizing the generated rendering graph and a real graph. And the Gaussian primitive after parameter optimization, the SDF MLP network and the Color MLP network are utilized to finally generate a high-precision scene geometric model and a new visual angle image with high fidelity rendering quality, so that the technical problem that geometric precision and rendering quality cannot be obtained at the same time in a three-dimensional reconstruction process is effectively solved, and the reconstruction quality of a three-dimensional scene is remarkably improved.

The invention discloses an on-line swing type adjustable magnetic rod for magnetron sputtering. The on-line swing type adjustable magnetic rod comprises a shell assembly, a magnet yoke assembly and an adjusting assembly. The shell assembly is provided with a containing cavity, and the magnet yoke assembly is located below the shell assembly. The adjusting assemblies are independently controlled, are arranged in the length direction of the magnet yoke assembly and are arranged in the containing cavity. The output end of each adjusting assembly is perpendicular to the magnet yoke assembly to do linear reciprocating motion, penetrates out of the side wall of the containing cavity towards the side where the magnet yoke assembly is located and is hinged to the magnet yoke assembly so as to drive the magnet yoke assembly to partially or completely change the distance between the magnet yoke assembly and the surface of the sputtering target. The multiple adjusting assemblies are arranged, the adjusting assemblies and the magnet yoke assemblies are provided with the multiple connecting point positions, the output ends of the adjusting assemblies act to drive the magnet yoke assemblies at the corresponding point positions to locally change the distance between the magnet yoke assemblies and the surface of the sputtering target (close to or away from the surface of the sputtering target), and then the local magnetic field intensity is adjusted; the real-time online control on the coating thickness of the surface of the sputtering target is realized, so that the coating thickness of a coating product tends to be consistent.

The invention discloses a dynamic scene repairing method based on four-dimensional Gaussian sputtering, which is characterized in that efficient dynamic scene space repairing is realized based on a repairing framework of a four-dimensional Gaussian sputtering monocular video reconstruction algorithm and a video repairing model, and by counting the time frame number of Gaussian primitives in a mask area and removing Gaussian points exceeding a threshold value, the dynamic scene space repairing efficiency is improved. According to the method, high-efficiency dynamic object removal is realized, and a mask weighting loss function is introduced to guide the repair area to converge to real texture information in a subsequent time frame, so that the repair quality is improved. The invention provides a dynamic scene repair method based on four-dimensional Gaussian sputtering, and provides a repair framework based on a four-dimensional Gaussian sputtering monocular video reconstruction algorithm and a video repair model for removing and repairing a target object in a dynamic scene to realize three-dimensional repair of the dynamic scene.

The invention relates to the technical field of aluminum-based thin film preparation, and discloses an aluminum-based thin film uniform deposition system based on magnetron sputtering. The system comprises a substrate state detection module, a magnetic field dynamic regulation and control module, a sputtering power regulation module, a deposition process monitoring module and a central control terminal. The substrate state detection module collects and transmits surface flatness data of the substrate in real time, and the central control terminal carries out visual display. The magnetic field dynamic regulation and control module obtains magnetic field intensity correction through a magnetic field gradient algorithm according to the deviation value of the real-time flatness parameter and the standard parameter and sends the magnetic field intensity correction to the sputtering power regulation module. And the sputtering power adjusting module adjusts the sputtering rate of the target material accordingly. The deposition process monitoring module tracks the adjusting process, evaluates the dynamic response performance, generates a stable or fluctuation signal and sends the stable or fluctuation signal to the central control terminal, and the central control terminal triggers sound-light alarm when receiving the fluctuation signal. The system can improve the deposition uniformity and process stability of the aluminum-based thin film.

The invention discloses an object rapid reconstruction method, system and device based on 3D Gaussian sputtering segmentation, and belongs to the technical field of image data processing. The method comprises the following steps: collecting an appearance image of a target object, obtaining image quality and three-dimensional reconstruction information, and screening and optimizing an image set according to the image quality; converting the sparse point cloud into voxels, cutting and optimizing the image set to obtain a 2D region of each view angle, and cutting the voxels by using a camera pose and the 2D regions to obtain target voxels; rendering the target voxel into a depth map, generating sampling points according to the depth map, segmenting the optimized image set by using the sampling points to obtain a target object mask, and cutting to obtain each view segmentation result; projecting the segmentation result back to the initial view angle, generating a depth map, comparing the depth map with a target view angle mask to obtain a consistency evaluation value, and iterating the segmentation result according to the evaluation value to obtain a target object mask set; and reconstructing a 3D Gaussian sputtering model according to the cut voxels and the Gaussian points.

The invention belongs to the technical field of computer graphics and real-time 3D scene reconstruction, and relates to a real-time compression and optimization method based on a 3D Gaussian sputtering (3DGS) model, which realizes efficient storage, transmission and rendering of a three-dimensional scene through residual vector quantization (RVQ) and a dynamic pruning technology, and comprises the following steps: S1, residual quantization vector quantization; s2, enhancing a dynamic pruning strategy; and S3, index compression and coding optimization. The invention provides a real-time 3D Gaussian sputtering (3D Gaussian sputtering) model compression system combining residual vector quantization and dynamic pruning, which can realize high-quality real-time rendering and extremely high storage efficiency. Through three core technologies of a vector quantization strategy, dynamic pruning strategy enhancement and index compression and coding optimization, on the premise that the rendering quality is guaranteed, the purposes that the model storage amount is reduced by more than 45 times, and the rendering speed is increased by 3 times are achieved.

The invention relates to a magnetron sputtering system and a coating method thereof, the system comprises a pair of twin silicon target material and aluminum target material which are arranged in a coating chamber, the aluminum target material is located in the middle of a horizontal line where the twin silicon target material is located, the twin silicon target material is electrically connected with a medium-frequency power supply, and the aluminum target material is electrically connected with a direct-current power supply. According to the structural design, on one hand, the uniform deposition range can be expanded, the deposition difference of wide workpieces can be reduced, and the whole surface insulation consistency can be ensured, and on the other hand, the aluminum target realizes uniform doping of the aluminum element and stable control of the content, so that the toughness and binding force of the coating are improved, the influence on insulation is avoided, and the comprehensive performance of the non-conductive coating is remarkably improved.

The invention provides a digital human body modeling system and method based on space-time consistency Gaussian sputtering, and the system comprises a Gaussian set construction module which is used for constructing an initial Gaussian set based on a collected monocular RGB video sequence of human body motions; the non-rigid deformation module is used for updating a pre-constructed standard Gaussian set by adopting a Gaussian decoder based on the initial Gaussian set to obtain a dynamic Gaussian set containing non-rigid deformation; the space-time constraint module is used for applying space-time consistency constraint to the dynamic Gaussian set to obtain the dynamic Gaussian set of the space-time consistency constraint; the rigid deformation module is used for obtaining an attitude-driven Gaussian set based on the rigid deformation of the linear binding skeleton; and the projection rendering module is used for rendering the attitude-driven Gaussian set into a Gaussian image under the current frame attitude. According to the method, a space-time consistency mechanism of motion perception is combined, and the consistency problem of non-rigid deformation in a monocular video is effectively solved.

The invention relates to the technical field of batteries, in particular to a preparation method and application of a functional current collector with low thermal shrinkage and high tensile strength. The functional current collector is prepared by sequentially carrying out magnetron sputtering on the thermal shrinkage transition layer and the copper layer on the surface of the base film and then carrying out water plating on the copper layer. The functional current collector prepared by the invention can effectively solve the problems of relatively large thermal deformation and relatively large residual stress of the functional current collector, and also can improve the overall strength and stability of the functional current collector, so that the functional current collector has a wide application prospect in the technical field of batteries.

The invention provides a large-scene efficient reconstruction method based on 3D Gaussian sputtering. The method comprises the following steps: collecting a multi-view large-scene image and carrying out image preprocessing; camera pose data and point cloud data are acquired; dividing the scene ground plane into a plurality of grid units; determining a contribution camera of each grid unit; obtaining extended point cloud data outside the boundary of each grid unit and 3D Gaussian distribution inside and outside the boundary of each grid unit; dynamically adjusting the 3D Gaussian distribution in each grid unit and deleting the 3D Gaussian distribution outside the boundary of each grid unit; and determining weights of all adjacent grid units, and carrying out weighted average on the weights of all adjacent grid units and the optimized 3D Gaussian distribution parameters to obtain 3D Gaussian distribution of a merged complete scene and generate a three-dimensional model. According to the sparse multi-view image 3D Gaussian reconstruction method, the reconstruction efficiency of a large-scale scene can be improved, and the memory overhead can be reduced.

The invention relates to an orderly self-assembled monomolecular layer, a semitransparent solar cell and a preparation method of the semitransparent solar cell. The preparation method comprises the following steps: uniformly mixing carbazole phosphoric acid MeO-2PACz with an isopropanol solvent to obtain a mixed solution, spin-coating the mixed solution on an ITO transparent conductive substrate, and annealing to obtain a uniform and compact self-assembled monomolecular layer. And sequentially preparing a perovskite light absorption layer, a C60 electron transport layer, a SnO2 buffer layer and an ITO transparent electrode layer on the surface of the self-assembled monomolecular layer by adopting spin coating, vacuum evaporation, atomic deposition, magnetron sputtering and the like, and finally obtaining the semitransparent perovskite solar cell. The uniform and compact high-quality self-assembled monomolecular layer can be prepared by using the isopropanol and MeO-2PACz spin coating liquid formula, so that the nucleation activation energy of perovskite can be reduced, the perovskite buried layer is more compact, the charge recombination reaction of the buried interface is reduced, and the photoelectric conversion efficiency is improved. And the efficiency and the stability of the semitransparent perovskite solar cell device are obviously improved.

The invention discloses a point cloud reconstruction method and system based on three-dimensional Gaussian sputtering, and is used for solving the technical problem that the structural stability of a final three-dimensional point cloud model is not good enough due to the fact that a traditional point cloud reconstruction method causes gradient propagation abnormity, and the optimization process is not convergent or falls into a local minimum value. The method comprises the following steps: firstly, acquiring a multi-view image and a reference view image, and constructing a covariance degradation risk probability graph; generating a plurality of Gaussian three-dimensional points to be regulated and controlled, performing three-dimensional point screening and fitting credibility score calculation, outputting secondary regulation three-dimensional points and corresponding scores, and constructing an initial three-dimensional point cloud model; performing secondary adjustment on the three-dimensional point by combining the multi-view image and fractional optimization to obtain a target Gaussian three-dimensional point, and updating the initial model into an intermediate model; and updating the intermediate model through a covariance updating gating mechanism based on gradient convergence dynamic monitoring, and outputting a target three-dimensional point cloud model.

The invention discloses a composite modified material for a lithium niobate wafer, and relates to the technical field of nano materials. The material is composed of an anti-corrosion passivation matrix and a function enhancement component, wherein the anti-corrosion matrix adopts a silicon nitride / SiO2 multi-layer composite layer, atomic layer deposition titanium dioxide and magnetron sputtering aluminum oxide to form cascade protection; the functional layer comprises lead sulfide nanoparticles and nano silicon dioxide, and is directionally modified by a silane coupling agent and a perfluoropolyether surfactant. During preparation, PbS nano-particles are synthesized by combining a PECVD-ALD-magnetron sputtering stepped deposition process (200-150 DEG C) with a solvothermal method, and finally, the PbS nano-particles are formed through spin coating-annealing (300-400 DEG C). The optical loss of the material under the wavelength of 1550 nm is smaller than 0.2 dB / cm, the acid and alkali corrosion resistance is larger than 240 h, the lead dissolution rate is smaller than 0.1 ppm, the interface state density is reduced by 2 orders of magnitude, the contradiction between lithium niobate wafer surface degradation, photoelectric property degradation and lead-containing material environment risk is solved, and the material is suitable for 5G optical waveguide and quantum integrated device packaging.

The invention discloses a layered densification Gaussian sputtering method based on visibility, and relates to the technical field of artificial intelligence and computer vision. According to the scheme, an initial three-dimensional Gaussian primitive set is generated based on sparse multi-view observation data, and initial scene representation is established by extracting spatial distribution parameters, morphological parameters and radiation parameters; performing fusion analysis on the Gaussian primitives based on the multi-dimensional observability parameter set to obtain comprehensive observability index data; executing hierarchical clustering according to the index data, and constructing a multi-layer Gaussian structure of a significant layer, a transition layer and a background layer; performing density enhancement, geometric continuity constraint and parameter update processing on different levels of Gaussian structures, and generating a rendered image of a target view angle under a volume light traveling and transparency hybrid mechanism; according to the method, continuous reconstruction of a scene structure and accurate expression of radiation characteristics can be realized under the sparse view condition, and the geometric fidelity and rendering consistency of new view angle synthesis are improved.

The invention provides a preparation method of an HDMI (High Definition Multimedia Interface) high-performance common-mode suppressor made of a nanocrystalline material, relates to the technical field of electronic component preparation, and aims to meet the harsh requirement of HDMI high-frequency high-speed signals on common-mode noise suppression, the method comprises the following steps: constructing a multi-layer heterogeneous magnetic film with a gradient interface on a microstructured substrate by utilizing multi-target magnetron sputtering; a selective energy field assisted annealing technology is adopted to realize precise nanocrystallization and magnetic anisotropy regulation and control of the magnetic film; and a high-precision three-dimensional coil structure is integrated by combining a micromachining process. The prepared common-mode suppressor is small in size and high in integration level, shows excellent common-mode suppression efficiency, wide working bandwidth and excellent signal integrity in a high-frequency band, has high reliability, and is suitable for a new generation of HDMI (High-Definition Multimedia Interface).

The invention discloses a TiSiN / TiBC multilayer hydrogen-resistant wear-resistant coating as well as a preparation method and application thereof, and belongs to the technical field of material preparation. The TiSiN / TiBC multi-layer structure composite hydrogen-resistant wear-resistant coating is prepared on the surface of the steel substrate through the high-frequency pulse magnetron sputtering technology, the middle transition layer is designed between the steel substrate and the hydrogen-resistant coating, and the transition layer has good toughness and the thermal expansion coefficient (8 * 10 <-6 >-12 * 10 <-6 > / DEG C) matched with the substrate; the residual stress between the coating and the steel substrate is effectively reduced, the fracture toughness and binding force of the hydrogen-resistant coating are improved, the binding force of the coating is improved, and then the wear resistance of the coating is remarkably improved. And meanwhile, a large number of vacancy bonds such as Si-bonds, B-bonds, C-bonds and N-bonds contained in the hydrogen-resistant coating can be used for capturing hydrogen atoms, so that the capturing capacity on the hydrogen atoms is improved, the permeation effect of hydrogen is further inhibited, and the hydrogen-resistant efficiency of the coating is remarkably improved.

The embodiment of the invention relates to the technical field of glass fiber mobile phone rear covers, and provides a glass fiber mobile phone rear cover and a manufacturing method thereof, and the method comprises the steps: 1, providing a base material which is a PET film; step 2, forming a release texture layer on the base material by using UV release glue; step 3, coating a dual-curing hardening liquid on the release texture layer, and carrying out baking and pre-curing treatment to form a hardening liquid layer; 4, forming a transfer printing inner texture layer on the hardening liquid layer by using UV transfer printing glue through a roll-to-roll transfer printing process; step 5, depositing a dielectric film layer of 30-300nm on the inner texture layer through magnetron sputtering; step 6, carrying out silk-screen processing on the dielectric film layer to form a silk-screen layer, and obtaining an initial thin film; and step 7, carrying out curing and mold pressing treatment on the prepared initial thin film to prepare the glass fiber mobile phone rear cover, so that the yield of the glass fiber mobile phone rear cover can be improved.

The invention provides a transparent conductive film with a double-layer grid structure and a preparation method thereof, and relates to the field of transparent conductive films, and the preparation method of the transparent conductive film comprises the following steps: preparing a layer of copper film on the surface of a transparent flexible substrate by using a vacuum coating technology; then preparing a layer of self-cracking film on the surface of the copper film by adopting a self-cracking agent, wherein the self-cracking film naturally cracks to form a net-shaped cracking template; then preparing a layer of BaSnO3 thin film on the net-shaped cracking template by utilizing a magnetron sputtering technology, and removing the self-cracking film on the copper film to obtain a BaSnO3 grid; and finally, spraying an etching solution on the surface of the BaSnO3 grid to etch the copper film into a copper grid, thereby obtaining the transparent conductive film with the double-layer grid structure. The high conductivity of the copper grid and the high permeability of the BaSnO3 grid are combined, the transparent conductive film with high performance is prepared, the overall preparation cost is low, and the product has good application in the fields of transparent conductive components, flexible transparent heaters, flexible display, functional inorganic coatings and the like.

The invention relates to the technical field of ITO coating materials, and provides a low-sheet-resistance and high-light-transmittance ITO coating film and a preparation method thereof.The preparation method comprises the steps that S1, an yttrium-doped zirconium oxide substrate is prepared; s2, performing surface activation on the yttrium-doped zirconium oxide substrate; s3, performing magnetron sputtering in a radio frequency magnetron sputtering chamber, and forming a layer of ITO film on the surface of the yttrium-doped zirconia substrate; and S4, annealing treatment and gradient cooling treatment are carried out. The epitaxial growth of the ITO coating film is optimized through the prepared yttrium-doped zirconia substrate, and the magnetron sputtering, annealing and gradient cooling processes are combined, so that the microstructure of the film is optimized, the carrier mobility and the uniformity and stability of the film are improved, the grain boundary defect and carrier scattering loss in the ITO coating film are reduced, and the performance of the film is improved. The low sheet resistance and high light transmittance of the ITO coating film are synergistically improved, and the obtained ITO coating film has important application value in the fields of high-performance optoelectronic devices, transparent conductive films and the like.

The invention provides a high-transmittance ITO conductive glass preparation process, and belongs to the technical field of conductive glass preparation, and the high-transmittance ITO conductive glass preparation process comprises the following steps: S1, cleaning a substrate: carrying out ultra-clean cleaning on a glass substrate to remove oil stains and impurities on the surface, and blow-drying by adopting a high-pressure air knife; s2, coating pretreatment: feeding the cleaned glass substrate into a coating chamber, and carrying out pretreatment before coating; s3, forming a SiO2 film: adopting a medium-frequency coating process, obtaining the SiO2 film through medium-frequency reactive sputtering of a Si target, reducing the quantity of electric charges accumulated on the surface of the SiO2 film, and reducing the probability of abnormal discharge; s4, forming an ITO film: continuously coating the SiO2 film to form an ITO conductive film; and S5, post-treatment: carrying out annealing and cleaning post-treatment on the coated glass so as to improve the stability and adhesive force of the film layer. According to the invention, a traditional radio frequency sputtering SiO2 film forming process is replaced by an intermediate frequency coating process, so that the quantity of electric charges accumulated on the surface of the SiO2 film is reduced, the probability of abnormal discharge is reduced, and the product quality is effectively ensured.

The invention relates to the technical field of magnetron sputtering, and particularly discloses a magnetron sputtering silver-coated conductive material powder device based on an ultrasonic-electromagnetic suspension composite dispersion system and application of the magnetron sputtering silver-coated conductive material powder device. In order to solve the technical problems of powder agglomeration, low target material utilization rate and poor large-scale production uniformity, a porous ceramic tool plate is used as a core carrier, and a high-frequency ultrasonic vibrator array (adjustable in 20-100kHz), a planar rectangular cathode (with an inclination angle of 0-15 degrees) and a Helmholtz coil (0.1-0.5 T rotating magnetic field) are integrated; non-contact dispersion of powder and precise coating of a silver layer are achieved through the cavitation effect, electromagnetic suspension and multi-target cooperative sputtering. The tool disc adopts a gradient aperture design, and is combined with liquid nitrogen micro-channel cooling and a modular sub-cavity structure, so that the powder dispersion uniformity (CV value lt; 5%), the silver layer porosity (llt; 1%), the target material utilization rate (52%) and the single-furnace productivity (72 kg / 8 h) are obviously optimized, and an efficient and environment-friendly industrialization solution is provided for the field of electronic materials.

The invention belongs to the field of microelectronics, and particularly relates to a preparation method and application of a ferroelectric diode based on a scandium-doped aluminum nitride thin film, and the ferroelectric diode is prepared through the following steps: S1, growing an adhesion layer on a substrate through magnetron sputtering; s2, growing a bottom electrode on the adhesion layer through magnetron sputtering; s3, growing a ferroelectric film on the bottom electrode through magnetron co-sputtering at room temperature; s4, coating photoresist on the ferroelectric film, and exposing and developing; s5, growing a top electrode on the exposed and developed ferroelectric film through magnetron sputtering; and S6, stripping to obtain the ferroelectric diode. Compared with the prior art, the method has the advantages that the problems of high preparation temperature of the Al1-xScxN layer and large thickness of the Al1-xScxN layer in the prior art are solved, the ferroelectric diode memory of the scandium-doped aluminum nitride film is prepared at room temperature for the first time, and compatibility with a CMOS (complementary metal oxide semiconductor) process is better realized.

The invention belongs to the technical field of new view angle synthesis, and discloses a new view angle synthesis method based on structured light and 3D Gaussian sputtering joint optimization. Under the sparse view angle, the new view angle is synthesized through combined optimization based on structured light and 3D Gaussian sputtering, the rendering precision of the model in an indoor scene with a weak texture area is improved, and the performance of new view angle synthesis in a complex scene is improved. Through combination of high-precision depth information provided by a binocular structured light technology and Gaussian distribution optimization of 3D Gaussian sputtering, the method aims to solve the problem of insufficient geometric detail representation of new view angle synthesis under a sparse view angle, so that a more accurate new view angle synthesis result and richer detail representation are realized, and improvement of the precision of new view angle synthesis is promoted.

The invention discloses a large-scene lightweight three-dimensional reconstruction method based on NeRF and 3DGS mixed representation, and belongs to the technical field of three-dimensional reconstruction, and the method comprises the steps: collecting a multi-view image of a scene and an object in the scene, and carrying out the preprocessing; constructing a hybrid model, wherein the hybrid model comprises a simplified 3DGS model, a simplified NeRF model and a hybrid unit; constructing the total loss of the hybrid model; and training the hybrid model to obtain a lightweight three-dimensional reconstruction model which is used for new view angle image reconstruction in a scene. According to the method, colors are decomposed into independent colors expressed by Gaussian sputtering and observation colors expressed by NeRF, the advantages of efficient storage and complex illumination and reflection effects of NeRF are reserved, the rapid rendering capacity of 3DGS is utilized, storage occupation is remarkably reduced, and meanwhile the rendering quality is improved. The depth map generated by the 3DGS model is used for guiding NeRF dynamic sampling, and the training and rendering efficiency can be effectively improved.

The invention relates to the technical field of new energy, in particular to an extensible composite hole transport layer and a perovskite solar cell based on the extensible composite hole transport layer, and a preparation method of the perovskite solar cell comprises the following steps: forming a nickel oxide film on transparent conductive glass through magnetron sputtering; soaking the nickel oxide thin film to form a self-assembled monomolecular layer; forming a perovskite active layer on the self-assembled monomolecular layer; forming an electron transport layer on the perovskite active layer; and forming an electrode on the electron transport layer. According to the method, the preparation size of the hole transport layer can be expanded, and the photoelectric conversion efficiency of the perovskite solar cell can be improved.