110 results about "Electron channel" patented technology

A nozzle and nozzle head arranged to subject a surface of a substrate to gaseous precursors. The nozzle includes an output face via which the precursor is supplied, a longitudinal precursor supply element for supplying precursor and a longitudinal discharge channel open to and along the output face for discharging at least a fraction of the precursor supplied from the precursor channel. The precursor supply element is arranged to extend inside the discharge channel such that the precursor supply element divides the discharge channel in the longitudinal direction to a first discharge sub-channel and a second discharge sub-channel on opposite sides of the precursor supply element for supplying precursor through the discharge channel.

A method is described for manufacturing an n-MOS semiconductor transistor. Recesses are formed in a semiconductor substrate adjacent a gate electrode structure. Silicon is embedded in the recesses via a selective epitaxial growth process. The epitaxial silicon is in-situ alloyed with substitutional carbon and in-situ doped with phosphorus. The silicon-carbon alloy generates a uniaxial tensile strain in the channel region between the source and drain, thereby increasing electron channel mobility and the transistor's drive current. The silicon-carbon alloy decreases external resistances by reducing contact resistance between source / drain and silicide regions and by reducing phosphorous diffusivity, thereby permitting closer placement of the transistor's source / drain and channel regions.

The invention discloses a self-supporting flexible carbon nano-tube paper composite electrode material for a lithium ion battery. A carbon nano-tube paper network of the material is formed by using interlaced carbon nano-tubes, and active anode material particles or cathode material particles of the lithium ion battery are compounded with carbon nano-tube paper to form the carbon nano-tube paper composite electrode material. In the electrode material, the carbon nano-tubes form an efficient three-dimensional conductive network, so that a better electron channel is provided for active material particles with low electrical conductivity. Because a bonding agent and a current collector are not needed, the electrode material has a higher active material ratio, and the performance of the electrode material is further improved. Meanwhile, the high mechanical property of the carbon nano-tube paper makes the composite electrode material show flexible characteristics, and as a flexible electrode material, the self-supporting flexible carbon nano-tube paper composite electrode material is hopeful to be widely used in next-generation flexible electronic equipment.

A metal-insulator-semiconductor high electron mobility transistor (MIS-HEMT) has a substrate in which an electron supply layer is interposed between an electron channel layer and the surface of the substrate. A pair of main electrodes are formed on the surface of the substrate. A recess is formed in the surface of the substrate between the main electrodes. A gate insulation film is formed on the surface of the substrate, at least between the first and second main electrodes, covering the inside walls and floor of the recess. A gate electrode is formed on the gate insulation film, filling in the recess. The gate insulation film has a crystal density of at least 2.9 g / cm3, which mitigates the reduction in threshold voltage caused by the recess.

An organic memory device and a method of manufacturing the same are disclosed. The organic memory device includes an electron channel layer including an organic layer, in which nano particles of a uniform size are dispersed, interposed between metal electrodes, thus having electrical bistability. The organic memory device uses a change of electrical conductivity which results from a substantial change of the electrical structure of the electron channel layer when a voltage is applied. The organic memory device can be integrated using a simple manufacturing process, and ensures uniformity between devices due to the threshold voltage characteristics, even when highly miniaturized.

The invention discloses a negative electrode material of a lithium ion battery. The negative electrode material comprises the following components in parts by mass: 88-105 parts of active material, 0.01-0.1 parts of single-wall carbon nanotubes, 0.01-0.5 parts of graphene nanobelt, one or less parts of super conductive carbon black, one or less parts of less-wall or multi-wall carbon nanotubes, 0.05-0.5 parts of dispersing agent, 1-3 parts of thickening agent, 1-4 parts of binder and 25-60 parts of solvent; the active material comprises a silicon oxide material SiO<x> and synthetic graphite, wherein x is greater than 0 and less than 2; and the silicon element in the negative electrode material is less than or equal to 3.5mass%. The invention provides the negative electrode material comprising the silicon oxide material and the low-dimensional carbon conductive material of the lithium ion battery; by virtue of the negative electrode material of the lithium ion battery, the problems of capacity fading and increasing internal resistance caused by losing of effective electron channels due to low electrical conductivity and an expansion effect in the use process of a silicon oxide negative electrode active material can be solved; and meanwhile, the cycle performance of the lithium ion battery applying the negative electrode material is improved.

The present invention relates to a method for fabricating FinFETs and the structure thereof. The present invention uses an additional mask to define regions forming semiconductor fins having high semiconductor-fin height. By making use of multiple etching processes of the insulating layer, structures with differences in the height of semiconductor fins are achieved. The method can be combined with current process for semiconductor-based FinFETs for overcoming effectively the problem of electron-channel-width quantization effect as well as improving the performance of FinFETs.

The invention provides an array carbon nano-tube / graphene platinum-supported catalyst for a fuel cell and a preparation method of the array carbon nano-tube / graphene platinum-supported catalyst, belonging to the field of electrochemistry. The catalyst comprises the following components in percentage by mass: 60-80% of array carbon nano-tube / graphene and 20-40% of platinum. The array carbon nano-tubes / graphene is used as a catalyst support, and the platinum serving as a metal component is loaded on the support. The preparation method comprises the steps of firstly, preparing a nickel / cobalt-supported graphene composite; then, growing an upright ordered carbon nano-tube on the graphene through chemical vapor deposition; and finally, reducing platinum on the support, namely the graphene-array carbon nano-tube. The support has a special structure, and the upright ordered carbon nano-tube grows on the graphene, so that the relatively large specific surface area is obtained, the utilization ratio of platinum can be increased, a smooth ion and electron channel is also provided for electro-catalytic reaction, the electro-catalytic reaction rate can be favorably increased, and finally, the catalytic efficiency of the catalyst and the utilization ratio of precious metal can be favorably increased.

The invention belongs to the technical field of lithium ion batteries and especially relates to a preparation method of a lithium-rich anode strip of a lithium ion battery. The preparation method comprises the following steps of 1, coating anode slurry on an anode current collector and drying to obtain an anode strip which comprises an anode diaphragm and needs lithium supplement, and 2, wetting the anode strip needing lithium supplement by an electrolyte until the anode diaphragm is wetted fully, and carrying out dual-channel contact between the anode diaphragm and lithium metal to obtain a lithium-rich anode strip, wherein in contact, a temperature is in a range of 10 to 150 DEG C and pressure intensity is less than 100MPa and contact time is less than 10 hours. Compared with the prior art, the preparation method has the advantages that an ion channel and an electron channel between lithium metal and the anode diaphragm can be formed simultaneously; a potential difference between an anode material and lithium metal can promote fast ionization of lithium metal so that lithium ions are formed; and the formed lithium ions are transferred and embed into anode active substance particles so that fast lithium supplement is realized. The preparation method has simple processes and can realize industrial batch production easily.

The invention discloses a preparation method of self-supporting flexible composite electrode material used by a lithium ion battery. Graphene oxide is used as an adhesive, carbon nano tubes are used as a conductive agent and transition metal compound nanofibers are used as an active material precursor, and the bendable self-supporting flexible composite film with excellent mechanical properties is obtained by performing ultrasonic treatment, stirring, filtering and drying. The composite film not only has excellent electrochemical performance after being calcined with laser, but also could maintain excellent flexibility, and could be bent. In the material, a conductive network is formed by interlaced carbon nano tubes and graphene oxide obtained via hot reduction with laser so as to provide a better electronic channel for active material particles with bad electrical conductivity. Without using a binder and a current collector, the electrode material has better active material proportion and could further improve the energy density of the battery.

The invention discloses a directional carbon nano-tube composite cathode material for a lithium-sulfur secondary battery. A structure consisting of carbon nano-tubes with orientation, namely the directional carbon nano-tubes is used as a framework of the material, a carbon nano-tube / sulfur composite material is obtained by compounding, and the composite material can be used as the cathode material of the lithium-sulfur secondary battery. In a conductive network constructed by using disordered carbon nano-tubes, the contact resistance at a lap joint of the carbon nano-tubes in the conductive network is always greatly increased by the load of sulfur; however, with the adoption of the directional carbon nano-tubes, an electron channel contacts a current collector through one carbon nano-tube, so that the generation of a large amount of contact resistance is avoided, and an efficient conductive network is provided. Meanwhile, an ordered pore structure of a directional carbon nano-tube electrode also ensures that an ion channel is smooth, so that the cathode material has high cycle performance, is a high-performance cathode material, and is expected to promote further enhancement of the performance of the lithium-sulfur secondary battery and the industrial application of the lithium-sulfur secondary battery.

The invention belongs to the technical field of lithium ion battery electrode materials, and discloses a mesoporous lithium aluminum silicate coated doped single crystal ternary positive electrode material and a preparation method thereof, and particularly relates to a doped single crystal lithium nickel cobalt manganate ternary material (LiNi0.55CoxMnyM1-x-yO2@(LiAlSi2O6)z) coated with a mesoporous lithium aluminum silicate layer and a preparation method thereof. According to the preparation method disclosed by the invention, a single-crystal doped lithium nickel cobalt manganate base material is obtained through an in-situ doping co-precipitation-high-temperature solid-phase method; and the mesoporous lithium aluminum silicate layer with high speed lithium ions and electron channels is coated through a template-sol / gel-low-temperature annealing process to prepare the doped single crystal lithium nickel cobalt manganate positive electrode material (LiNi0.55CoxMnyM1-x-yO2@(LiAlSi2O6)z), wherein the material has a high first specific capacity of 185.5mAh / g, high high-voltage cycling stability and excellent rate performance.

A graphene oxide memory device includes a substrate, a lower electrode disposed on the substrate, an electron channel layer disposed on the lower electrode by using a graphene oxide, and an upper electrode disposed on the electron channel layer.

An organic semiconductor device and a method of fabricating the same are provided. The device includes: a first electrode; an electron channel layer formed on the first electrode; and a second electrode formed on the electron channel layer, wherein the electron channel layer comprises: a lower organic layer formed on the first electrode; a nano-particle layer formed on the lower organic layer and including predetermined sizes of nano-particles that are spaced a predetermined distance apart from each other; and an upper organic layer formed over the nano-particle layer. Accordingly, a highly integrated organic semiconductor device can be fabricated by a simple fabrication process, and nonuniformity of devices due to threshold voltage characteristics and downsizing of the device can resolved, so that a semiconductor device having excellent performance can be implemented.

The invention discloses a composite current collector which comprises a porous polymer film, a metal coating attached to the surface of the porous polymer film and a conductive coating attached to thesurface of the metal coating. The invention also discloses a preparation method of the composite current collector. The invention also discloses a lithium battery pole piece. According to the presentinvention, the ultra-thin porous polymer film is adopted, so that the physical and chemical properties of the current collector can be improved, belt breakage is reduced, the weight of the battery can be reduced, and the energy density of the battery is improved; after the ultrathin porous polymer film is plated with metal, micropores in the surface of the ultrathin porous polymer film are filledwith metal, metal plating layers at the two sides are communicated, electronic channels are increased, and the internal resistance is effectively reduced, so that when the battery is prepared, a metal tab does not need to be additionally introduced to a tab, it can be guaranteed that electrode slurry does not leak in the subsequent coating process, and production can be better introduced.

A semiconductor device and method of manufacturing thereof. The semiconductor device has at least one NMOS device and at least one PMOS device provided on a substrate. An electron channel of the NMOS device is aligned with a first direction. A hole channel of the PMOS device is aligned with a different second direction that forms an acute angle with respect to the first direction.

A vacuum pressure measuring device with an electron source has a reaction zone for forming ions by impact ionization, wherein the electron source communicates with the reaction zone via a passage for the electrons. The electron source is surrounded by an insulating housing with a vacuum chamber, and a partition part is designed as a membrane carrier, carrying a nanomembrane at least in one section, the membrane separating the vacuum chamber from the outer region in a gastight manner and being at least partially designed to be electron-permeable. The vacuum chamber has a cathode for the emission of electrons. In the region of and / or on the nanomembrane, an anode arrangement is provided such that electrons are conducted against the nanomembrane and at least partially through it. The nanomembrane abuts the vacuum chamber of the vacuum pressure measuring device.

The invention discloses a III-V group metal oxide semiconductor type luminescent field effect transistor (FET) and a method for preparing the same, wherein the FET comprises a p-type drain region, an active area, an n-type semiconductor layer, a buffer layer and a substrate which are stacked in turn in vertical direction; a p-type gate region is arranged at the left side of the transverse step structure of the n-type semiconductor layer, while an n-type source region is arranged at the right side of the step structure; a grid electrode oxidation layer and a grid electrode are stacked on the p-type gate region; an electronic channel, which is formed by a MOS structure on the surface of a gate region semiconductor, is arranged between the p-type gate region and the grid electrode oxidation layer; the n-type source region is provided with a source electrode, while the p-type drain region is provided with a drain electrode. The transverse structure of the step of the invention is used to control the luminous intensity of a device by means of metal-oxide-semiconductor contact field effect, while the vertical structure is used to generate recombination luminescence; moreover, the structure has high luminous efficiency and high brightness and is convenient for control.

The invention relates to a catalyst modified by a proton conductor and using a conductive polymer as a carrier and a preparation method thereof. The preparation method comprises the following steps of: adding conductive proton polymer solution into a mixed liquor of alcohol and water and adding salt solution of a metal precursor in the catalyst to prepare metal nano colloid modified by the conductive proton polymer; adding conductive polymer monomers into the prepared colloid; adding acid solution of protons until pH is less than 3; adding a polymerization initiator of the conductive polymer monomers to polymerize the monomers; and adding a carbon material, and mixing, filtering and drying the mixture to prepare the catalyst. Compared with the conventional Pt / C catalyst, the catalyst has the advantages of dual functions of conducting electricity and conducting the protons, wherein the conductive polymer has good stability and electric conductivity, and can improve binding force between metal particles of the catalyst and a carrier conductive proton polymer when used as a bonding agent; the conductive proton polymer modifying the catalyst particles of the metal can build a proton channel; and the carbon material can optimize water and gas channels and build an electron channel. The catalyst has the advantages of strong antioxidation capacity and improvement on service life.

The invention provides a silicon-based composite material for a negative active material, a negative plate and a lithium ion battery. The preparation method comprises the following steps: arranging single-walled carbon nanotubes distributed in a three-dimensional network shape and an optional first conductive agent in a solid electrolyte coating layer; a three-dimensional conductive network can beconstructed on the surfaces of silicon material particles. Due to the establishment of the three-dimensional conductive network, the electron transmission between the silicon material particles and between the silicon material particles and the graphite is enhanced. The smoothness of an electronic channel after silicon expansion is ensured. The electron transmission stability in the circulation process is improved. The utilization rate of silicon is increased, the first utilization rate of the silicon material is increased, the first effect and the battery capacity of a lithium ion battery containing the silicon-based composite material are improved, the SWCNT elasticity is large, the super mechanical property is 100 times that of steel, it is guaranteed that a conductive network is not changed when a silicon negative electrode expands during circulation, circulation attenuation is slowed down, and the circulation performance is improved.

The invention provides a normally-closed gallium oxide field effect transistor structure and a preparation method thereof, and belongs to the technical field of semiconductor devices. The structure comprises a substrate layer and an n-type doped gallium oxide channel layer from bottom to top. A source electrode, a drain electrode and a grid electrode are arranged on the n-type doped gallium oxidechannel layer, and the grid electrode is positioned between the source electrode and the drain electrode, and an electron-free channel region is arranged in the n-type doped gallium oxide channel layer below the grid electrode. According to the invention, the structure does not need a groove to be prepared under a gate, and an electron-channel-free region is formed through high-temperature oxidation, and a gate is formed on the electron-channel-free region, so that the problems of etching damage and uncontrollable etching depth are avoided, and the saturation current and the breakdown voltageare improved.

Provided are a resistive memory device and a method of fabricating the same. The resistive memory device comprises an electron channel layer formed by means of a swelling process and an annealing process. Thus, conductive nanoparticles are uniformly dispersed in the electron channel layer to improve reliability of the resistive memory device. According to the method, an electron channel layer is formed by means of a printing process, a swelling process, and an annealing process. Thus, fabrication time is reduced.

The invention discloses a catalyst for hydrogen production and a preparation method thereof. In the catalyst for hydrogen production, eosin is used as a sensitizing agent, a carbon nano-tube is used as a carrier and a photoinduced electron channel, and a copper-based composite metal oxide is used as a catalyst promoter. The preparation method comprises the following steps of: mixing the carbon nano-tube and a metal saline solution, adding water, stirring for several hours, and evaporating water to dryness so as to obtain a carbon nano-tube and metal saline precursor; at the air atmosphere, calcining the precursor for hours so as to obtain a carbon nano-tube and copper-based composite metal oxide system; and soaking the carbon nano-tube and copper-based composite metal oxide system in an aqueous solution containing eosin Y under the protection of N2, and separating to obtain the catalyst for hydrogen production. Under the irradiation of visible light, the catalyst has higher hydrogen production activity and can be used for producing hydrogen by catalyzing and reducing water in visible light. The copper-based composite metal oxide can be used for replacing Pt to server as the catalyst promoter so that the non-platinization of the catalyst is realized; and therefore, the catalyst has a certain application value in the aspect of hydrogen production by reducing water through photocatalysis.

The invention relates to a graphene-based silicon carbon composite material and a preparation method thereof, and the preparation method comprises the following steps: respectively coating the surfaces of graphene oxide and nano silicon particles with organic polymer layers with opposite charges by adopting a precipitation co-distillation method to obtain a GO@poly composite material and a Si@polycomposite material; respectively ultrasonically dispersing the GO@poly composite material and the Si@poly composite material into water, uniformly mixing the composite materials and water, and carrying out high-temperature treatment in an H2 / Ar atmosphere to obtain a graphene-based silicon carbon composite material. According to the composite material, surface-modified nano silicon is uniformly and firmly dispersed among graphene sheet layers with opposite charges through electrostatic attraction, and a communicated conductive carbon network is formed around the nano silicon through high-temperature pyrolysis, thereby providing an electronic channel in the charging and discharging process, and facilitating the maintaining of the structural integrity of the negative electrode active material. The prepared composite material is high in specific capacity, excellent in cycle performance and long in service life of the lithium ion battery.

The invention discloses a preparation method of a dye-sensitized solar cell grapheme-doped composite electrode. The preparation method comprises the following steps that: a hydrothermal method is adopted to prepare a TiO2 nano array on conductive glass, and as a result, direct electron channels are provided, and the diffusion length of electrons can be increased, and electron recombination can be reduced, and the lifetime of the electrons can be increased; the hydrothermal method is adopted to prepare TiO2-graphene nano particles, and as a result, doped graphene can not only reduce the recombination of photogenerated electrons and holes, but also can enhance the capture of light, and the number of the photogenerated electrons can be increased; the TiO2-graphene nano particles are printed on the TiO2 nano array through a screen printing method, and as a result, a larger specific surface area can be obtained, and dye adsorption quantity can be increased; an organic solvent can be removed from a slurry through sintering; and the dye is adsorbed, and the dye-sensitized solar cell grapheme-doped composite electrode can be obtained.

The invention discloses a special-shaped ship metal pipe system connecting corrosion prevention structure. The structure comprises bolts (1) which are arranged on the peripheries of connectors of special-shaped metal pipe system flanges (7) and nuts (5) which are matched with the bolts (1). Composite electric insulation spacers (3) are arranged between the connectors of the flanges (7). The periphery of each bolt (1) is sleeved with a protective tube (4). Composite electric insulation washers (2) are arranged between the flanges (7) and the nuts (2). The invention further discloses a construction method of the prevention structure. By adoption of the special-shaped ship metal pipe system connecting corrosion prevention structure, the composite electric insulation spacers are used for isolating the pipe system butt flange face from fasteners, electronic channels generated through special-shaped metal contact are cut off, the inner walls and the outer walls of pipelines within a certainrange of a connecting structure and the two ends of the structure are coated with insulation enameled paint, the resistance of seawater in pipe systems at the two ends of a special-shaped metal jointis increased, ion channels in the seawater are cut off, and a good electric insulation effect can be achieved.

The invention provides a negative electrode of a solid-state battery and a preparation method thereof, and a solid-state battery. The negative electrode comprises a conductive material, a bonding layer covering the surface of the conductive material, an active material layer arranged on the surface of the bonding layer, and an electrolyte layer covering the surfaces of the active material layer and the bonding layer. The conductive material provides a fast electron channel for the negative electrode, and the electrolyte layer provides a continuous ion channel for the negative electrode, so asto meet the working requirements of the negative electrode. The active material layer can provide high specific capacity for batteries using the negative electrode. The bonding layer can improve the uniformity of distribution of the active material layer on the surface of the conductive material and avoid serious agglomeration of the negative electrode on the surface of the conductive material. The electrolyte layer is arranged on the surface of the active material layer, which not only can further avoid the falling-off of the active material layer, but also can inhibit the expansion effect ofthe active material in the active material layer to a certain extent. Thus, the thickness or volume of the negative electrode will not be changed in the process of battery charging and discharging.