22 results about "Electron distribution" patented technology

The application discloses a method for realizing ionosphere aircraft stealth based on regulating and controlling electron distribution of tail area, first, evolution time scales under different non-extended parameters are calculated; and according to the superhot electron energy and particle flux per unit time required by different non-extended parameters, a radio frequency discharge plasma generator is controlled to generate plasma corresponding to the non-extended parameters; then, in the grid electric field, electrons enter the acceleration field area, and ions are directly discharged to the tail area of the aircraft without acceleration; the regulation and control duration under different non-extended parameters is determined by the evolution time scale corresponding to the non-extended parameter. The application changes the electron distribution of the ionosphere aircraft tail area by randomly injecting high-energy electrons into the tail area of the aircraft, regulates and controls the evolution law and characteristic scale of the non-linear local cavity in the tail area which cannot be eliminated, makes the anti-stealth method of monitoring the motion of the density cavity to detect the ionosphere stealth aircraft invalid, and thus realizes the stealth of the ionosphere stealth aircraft.

The application provides a heterocyclic compound and an organic electroluminescent device thereof, and particularly relates to the technical field of organic electroluminescent materials.The heterocyclic compound provided by the application has suitable HOMO and LUMO energy levels, can be well matched with adjacent functional layers, can make the hole and electron distribution in the organic electroluminescent device balanced, can improve the recombination probability of excitons, and thus can realize the maximum recombination of carriers; in addition, the heterocyclic compound provided by the application also has a high triplet energy level, good film-forming property and thermal stability.When the heterocyclic compound provided by the application is applied to an organic electroluminescent device as the host material of a light-emitting layer, the luminous efficiency of the device can be effectively improved, the service life of the device can be prolonged, and the overall performance of the device can be significantly improved.

Aiming at the problem that the service life of a device is shortened due to electrode damage caused by ion bombardment, the invention provides a grid regulation and control type vertical structure micro-nano plasma triode which is of a vertical structure and comprises a substrate, a lower electrode, a grid, an upper electrode, a vertical insulating layer and a horizontal insulating layer. The lower electrodes are arranged above the substrate, the grid electrode is arranged above the lower electrodes, the horizontal insulating layers cover the upper layer and the lower layer of the grid electrode, the vertical insulating layers are distributed on the side edges of the grid electrode, the upper electrodes are arranged above the upper horizontal insulating layers, the edges of the upper electrodes are flush with the edges of the vertical insulating layers, and a vertical air channel is formed between the two upper electrodes. The grid electrode can effectively regulate and control ion and electron distribution in a channel, collision ionization is increased, micro-nano plasma formation is promoted, and the working voltage of the device is reduced. In addition, the grid electrode can regulate and control the electric field distribution in the vertical channel, change the ion motion trail, inhibit high-speed ions from directly bombarding the electrode, and prolong the service life of the device.

The present disclosure relates to a physical vapor deposition device and method, which comprises a reaction chamber, a first magnetron assembly, a support part and a second magnetron assembly. The top of the reaction chamber is provided with a target material. The first magnetron assembly is arranged on the back of the target material. The second magnetron assembly is arranged on the back of the support part. When the first magnetron assembly works, a magnetic field is generated at the target material, so that the positive ions of the plasma are attracted by the cathode negative electricity, hit the target material, knock out the atoms of the target material, and deposit on the substrate to obtain a film layer. In addition, the magnetic field lines generated by the second magnetron assembly when working are complementary to the magnetic field lines generated by the first magnetron assembly. Not only can the electron collision probability be further increased and the deposition rate be improved, but also the electron distribution trajectory can be changed, so that the magnetic field intensity of each part of the target material is relatively uniform. In this way, the thickness uniformity of each position of the target material is good, thereby the utilization rate of the target material can be improved, the service life of the target material can be prolonged, and the cost can be reduced.

The invention discloses a room-temperature NO2 gas sensor based on a ZnSe-ZnS heterostructure and a preparation method thereof, and relates to the technical field of gas sensing, the room-temperature NO2 gas sensor comprises an Al2O3 substrate electrode and the ZnSe-ZnS heterostructure, and the ZnSe-ZnS heterostructure is coated on the Al2O3 substrate electrode to form the NO2 gas sensor; the ZnSe-ZnS heterostructure comprises a zinc selenide nanosheet substrate and zinc sulfide nanoparticles modified on the surface of the zinc selenide nanosheet substrate; according to the invention, ZnS nanoparticles are creatively adopted to modify ZnSe nanosheets to construct a heterostructure, and the design has the following advantages: firstly, the ZnS nanoparticles can effectively regulate and control electron distribution on the surface of ZnSe to form more active sites; secondly, energy band matching at a heterogeneous interface is beneficial to charge transfer, and the response sensitivity of the material to target gas is improved; and finally, the common agglomeration problem of the monatomic catalyst can be avoided through nano-particle modification, and the stability of the material is ensured.

This application relates to the field of medical device technology, and provides an electron emitter, an electron transmitter, an X-ray tube, and a medical imaging device. The electron emitter includes an emitting part, a non-emitting part, and a supporting substrate. Both the emitting and non-emitting parts are disposed on the supporting substrate, and the non-emitting part surrounds the outer periphery of the emitting part. The electron emitter provided by this application can ensure that the electron beam is emitted as perpendicularly as possible to the emitting part, reducing the amount of electron diffusion to the outer periphery of the emitting part, thereby reducing the bending deformation of the electron beam path and improving the uniformity of electron distribution.

The application discloses a kind of based on electronic density and distribution uniformity Fractal dimension calculation method and general detection device, belong to material microstructure characterization technical field.The method determines material chemical formula unit total price electron number, theoretical dense density and molar mass, detects actual density and calculates porosity;Collect surface topography gray data, calculate electronic distribution uniformity by normalized variance;Total price electron number density is calculated, combined with fitting proportion coefficient, and the fractal dimension is obtained by general formula.The detection device uses modular architecture, including basic parameter input, density detection, uniformity acquisition, main control calculation and result output module, each module can be independently replaced, and the main control module is built-in core algorithm.The application does not need large microscopes, realizes fast, low-cost detection, adapts to various solid materials, wide protection range, easy industrialization, solves the problems of high cost, complicated process, poor universality and easy to avoid in prior art.

A system and method for automatic optimization of an imaging recipe of an electron beam tool are provided. The method includes obtaining material and structural properties of a semiconductor specimen of interest (SOI); performing a first simulation of the interaction between irradiated electrons of a primary beam and the SOI at various primary beam configurations to obtain maps of escaped electron distribution in terms of polar angle and escape energy; performing, based on the maps, a second simulation of the collection and detection of escaped electrons at different imaging configurations to obtain a signal profile of a measurement of interest (MOI) on the SOI at each imaging configuration; and creating an imaging recipe for the electron beam tool, comprising primary beam parameters and tool imaging parameters configured to achieve optimal contrast of the MOI in the signal profile.

In the structure of the organic electroluminescent compound, an electron-rich group formed by carbazole and phenyl connected with the carbazole is substituted by deuterium and is matched with a deuterated P-type compound of a core region (HOMO electron distribution region), so that the organic electroluminescent compound has the advantages that the electron-rich group can be used as an electron-rich group; according to the present invention, the N-type compound can effectively improve the chemical stability, the photoelectric stability and the thermal stability of the light-emitting material structure so as to improve the stability and the service life of the light-emitting device using the material, and can form the good Premix material with the deuterated P-type compound in the core region (HOMO electron distribution region), in the evaporation process, the P / N stability and the mass production stability are good, and the formed Premix material has more balanced carrier mobility, so that the efficiency of a device is greatly improved, and the service life of the device is greatly prolonged.

This invention discloses an asymmetric photoresponsive electronic pump hydrogen production catalyst, its preparation method, and its application, belonging to the field of catalyst technology. The asymmetric photoresponsive electronic pump hydrogen production catalyst comprises a Ru nanocluster composite material consisting of Ru nanoclusters and a carbon-nitrogen material with Ni single atoms embedded within its lattice. ac -Ni sa / NC catalyst; the Ru ac -Ni sa In the / NC catalyst, Ni and Ru respond asymmetrically to light irradiation. Under illumination, electrons migrate from Ni to Ru, resulting in electron-rich and electron-deficient sites at Ru and Ni sites, respectively. This invention utilizes light irradiation to disrupt the equilibrium state. This asymmetric photoresponsive electron-pumped hydrogen production catalyst drives directional electron flow, maintaining the asymmetric electron distribution under light irradiation. This allows for the manipulation of photogenerated electrons and the overcoming of unfavorable reducing environments, thereby accelerating the conversion of methane and carbon dioxide into syngas.

This invention discloses a high-entropy carbon oxide / resin encapsulation coating for shielding high-energy electrons, its preparation method, and its application, belonging to the field of radiation hardening technology. This invention overcomes the problem of electronic component failure caused by high-energy electron irradiation. The invention involves high-energy ball milling of Nb, Mo, Ta, W, WO3, and carbon powder to obtain a high-entropy carbon oxide (NbMoTaW)C. 1‑x O x The mixture is combined with a resin matrix, coated onto electronic devices, and cured by heating to obtain an encapsulation coating that shields high-energy electrons and radiation-resistant electronic devices. This invention introduces oxygen into high-entropy materials, regulating the lattice structure and electron distribution, promoting lattice contraction and structural densification, and increasing the probability of interaction between high-energy electrons and atomic nuclei and extranuclear electrons in the material, thereby enhancing the material's radiation shielding capability. This invention features a simple process, strong adhesion to the device shell, easy thickness control, and suitability for complex device surface forming, significantly improving the engineering applicability of device packaging.

The application discloses an ionosphere model construction method, device and equipment and a computer storage medium. The method comprises the following steps: obtaining a first observation quantity to obtain a first ionosphere delay; obtaining N sub-ionospheres based on ionosphere division, and presetting a function category corresponding to each sub-ionosphere; obtaining prior electron distribution data in an ionosphere physical model, obtaining prior ionosphere delay corresponding to each sub-ionosphere based on the prior electron distribution data, and obtaining a proportion factor representing a proportional relationship between the prior ionosphere delays of each sub-ionosphere; obtaining a virtual ionosphere delay of each sub-ionosphere based on the first ionosphere delay and the proportion factor; and constructing an ionosphere observation equation based on the function category, the virtual ionosphere delay and the first ionosphere delay to obtain an ionosphere model. The embodiment of the application is helpful to improve the positioning accuracy based on the ionosphere model.

The invention discloses a sulfur-doped titanium nitride carrier-loaded iridium catalyst and a preparation method and application thereof.S atoms are introduced into TiN lattices, an S-doped TiN (S-TiN) composite carrier is constructed, high-dispersion Ir nano-particles (Ir / S-TiN) are loaded, the strong electron donor characteristic of the S element is utilized, electron distribution on the surface of the carrier is remarkably regulated and controlled, an electron-rich interface environment is formed, and the sulfur-doped titanium nitride carrier-loaded iridium catalyst is obtained. Thus, oxidation corrosion of the TiN carrier in the oxygen evolution reaction process is delayed, the dosage of precious metal is effectively reduced, the surface catalytic activity center utilization rate is increased, and the prepared S-TiN carrier loaded Ir catalyst shows good catalytic activity and catalytic stability in three-electrode equipment. The problems of active site stripping and structure collapse of the traditional TiN carrier loaded Ir-based catalyst under the working conditions of high potential and strong oxidation in the prior art are effectively solved.

The invention discloses a tunable superconducting microwave resonator based on a lithium niobate film and a tuning method. The tunable superconducting microwave resonator comprises a coplanar waveguide resonator, a bonding material layer, the lithium niobate film and a metal electrode, the coplanar waveguide resonator comprises a substrate and a thin film material processed on the substrate; the surface of the coplanar waveguide resonator is coated with a bonding material, gaps of the coplanar waveguide resonator are filled with the bonding material to form a bonding material layer, a lithium niobate film is bonded on the bonding material layer, and a metal electrode is processed on the lithium niobate film. The high-speed modulation voltage is applied to the lithium niobate film through the metal electrode, so that the distribution of electrons in the lithium niobate film is instantaneously changed, the relative dielectric constant of the lithium niobate film is changed, the effective dielectric constant of the adjustable superconducting microwave resonator is changed, and tuning is completed.

The invention discloses a multi-scene dual-electron composite rate coefficient calculation system and method based on an adaptive strategy. The method comprises the following steps: 1, cleaning original data and generating a standardized input text; 2, on the basis of the obtained input text, core parameter calculation is carried out through a DR spectrum of a drspectrum module, and accurate spectrum parameters are obtained; 3, on the basis of the acquired accurate spectral parameters, the distribution of different application scenes is adapted to electron distribution models of different scenes; and step 4, based on the constructed electron distribution model, realizing full-process automatic accurate calculation of the double-electron composite DR rate coefficient in multiple scenes, and outputting an intermediate key data file and a scenarized rate coefficient file. According to the method, the most matched electronic distribution model and calculation formula can be automatically called according to different physical scenes, so that the problem of model universality is solved; the seamless connection of the whole process from original data cleaning, core parameter calculation to scenarized rate coefficient generation is realized, so that the fragmentation and error-prone problems are solved.

The invention provides an SONOS memory device and a preparation method thereof, the SONOS memory device comprises a substrate layer, a source region, a drain region, an ONO structure and a grid electrode, the ONO structure is located on the substrate layer between the source region and the drain region, the ONO structure comprises a tunneling dielectric layer, a charge storage layer and a barrier layer, and in the direction from the source region to the drain region, the charge storage layer and the barrier layer are arranged on the substrate layer. The charge storage layer comprises a charge isolation layer and a charge capture layer which are arranged in sequence, and the defect state density of the charge isolation layer is lower than that of the charge capture layer. According to the SONOS memory device, the charge isolation layer with the defect state density lower than that of the charge trapping layer is arranged at one end, close to the source region, of the charge storage layer, so that the concentration of trapped charges at the source end is reduced, the concentration of trapped charges at the drain end is increased, and storage electron distribution is more matched with erasing hole distribution; therefore, the programming erasing action is easier to carry out, and the reliability and the cycle durability of the device are effectively improved.

The invention discloses an organic electroluminescent compound and an organic electroluminescent device. The organic electroluminescent compound has a structure as shown in a formula (1). In the structure of the N-type compound provided by the invention, an electron-rich group formed by carbazole and phenyl connected with carbazole is substituted by deuterium, and the deuterated P-type compound in a core region (HOMO electron distribution region) is matched, so that the chemical stability, photoelectric stability and thermal stability of the structure of the luminescent material can be effectively improved; meanwhile, the N-type compound and a deuterated P-type compound in a core region (HOMO electron distribution region) can form a good Premix material, and the N-type compound has good P / N stability and mass production stability in the evaporation process, so that the light-emitting device with the N-type compound and the deuterated P-type compound in the core region (HOMO electron distribution region) can be prepared into the light-emitting device with the N-type compound and the P-type compound in the core region (HOMO electron distribution region). And the formed Premix material has more balanced carrier mobility, so that the efficiency of the device is greatly improved, and the service life of the device is greatly prolonged.

This invention provides a rare earth material with high efficiency in scavenging reactive oxygen species, its preparation method, and its application. The rare earth material comprises a rare earth cerium salt, a pH adjuster, a copper salt, zinc oxide (ZnO), and boron nitride (BN) in a molar ratio of (5-7):(8-12):(4-6):(1-3):(0.5-1.5). In this invention, zinc oxide can regulate the electron distribution on the material surface, and boron nitride can optimize the crystal structure arrangement. The two, together with the copper salt, further enhance the number and stability of oxygen vacancies. Its free radical scavenging rate constant is more than 15 times higher than that of traditional materials, and it can significantly inhibit the inflammatory response during the inflammatory phase of wound healing.

A scanning electron microscopy (SEM) system performs color SEM using a probe and detector. The probe directs incoming probe electrons at a sample. The detector detects electrons scattered by the sample. The system determines materials of the sample using the detected scattered electrons. The system generates a color SEM image of the sample using the detected scattered electrons, determining colors in the image based on determined materials. The system may determine an electron distribution, e.g., electron count relative to detection angle, and may determine materials by comparing a sample's electron distribution to electron distributions for a group of materials. The system may be a focused ion beam scanning electron microscopy (FIB-SEM) system that directs a FIB at samples to separate layers thereof. For each of multiple layers, the system detects scattered electrons, to generate a three-dimensional color SEM image of the sample having thicker than individual layers.

The application belongs to the technical field of photocatalytic materials, and particularly relates to a covalent organic framework material based on a thiadiazole ring connection and a preparation method and application thereof. The application proposes a locking enhancement combined sulfuration strategy for C=N bridges, acylhydrazone bonds in covalent organic frameworks (COFs) connected by acylhydrazone bonds are sulfurated, cyclized and oxidized by using Lawesson reagent as a thio reagent, and the COFs based on the thiadiazole ring connection are synthesized, asymmetric electron distribution is realized by introducing S heteroatoms to form a thiadiazole ring, and it is found through the research of the application that the new COFs used as a photocatalyst realize excellent photocatalytic hydrogen peroxide generation and photocatalytic aerobic oxidation coupling of benzylamine.

The invention relates to the field of photoelectric materials, in particular to a boron-containing compound and application thereof. The boron-containing compound has a pi conjugated polyaromatic skeleton structure of B-N, B-Bi and B-P heteroatom pairs, and is combined with a substituent group with adjustable electrical property to realize accurate regulation and control on molecular energy level, electron distribution and spectral response, so that an anti-blue-light functional material with high absorptivity, narrow peak width at half maximum and high optical transparency in a wave band of 400-450 nm is obtained.

The present application relates to the technical field of photocatalytic materials, in particular to a Cl-doped Zn3In2S6 photocatalyst, a preparation method and application thereof, the Cl-doped Zn3In2S6 (Cl-ZIS) photocatalyst is successfully synthesized by a one-step solvothermal method, on the one hand, the Cl element doping can cause the rearrangement of the electronic structure of Zn3In2S6, so as to regulate the energy band structure; on the other hand, the Cl element doping can cause the uneven distribution of the internal charge of Zn3In2S6, forming a local built-in electric field, so as to improve the separation efficiency of the photo-generated carriers; the Cl element doping is used to regulate the electronic distribution of Zn3In2S6 and the separation efficiency of the photo-generated carriers, so as to promote the photocatalytic synthesis of H2O2 performance of the double-metal sulfide under visible light irradiation, and effectively improve the industrial application prospect of the double-metal sulfide-based photocatalytic material.