183 results about "Nanohole" patented technology

The invention provides a spectrometer system comprising a spectrometer chip comprising a camera and a metasurface located on a detection surface of the camera; the metasurface comprises a plurality of nano-pore or nano-column arrays, and selective absorption of light with different wavelengths is realized through surface plasmons generated by different nano-pores or nano-columns; the camera detects the intensity change of light to be detected after the light passes through different nano-pores or nano-column arrays of the metasurface, and then spectral information is obtained through calculation. According to the spectrograph system, selective absorption of light with different wavelengths is achieved through the metasurface, and then spectral information is obtained through calculation, so that the structure of the spectrograph system is compact, and the overall size is very small; and the plasmon generated by the nanopore or nanopillar array has high tolerance to the structure size, so that the processing precision is lower, and large-area and large-batch preparation can be realized.

The invention discloses a bismuth telluride nanopore maskless direct writing preparation method based on electron beam irradiation, and belongs to the technical field of nanometer manufacturing. The method comprises the following steps: firstly, constructing an initial nanopore in a two-dimensional bismuth telluride material by utilizing a converged electron beam; and then the aperture size of the nanopore is accurately regulated and controlled by adjusting the beam density of the electron beam. The method effectively solves the key technical bottlenecks of interface chemical residue pollution caused by a traditional photoresist mask process, intrinsic defect formation caused by high-energy particle bombardment and the like, and breaks through the limitation of an existing etching technology in the aspect of sub-nanoscale structure precision control; precise control of the aperture of the nanopore can be achieved by adjusting the irradiation intensity of the electron beam, and the method has the advantages of being easy and convenient to operate, low in cost, environmentally friendly and the like and can be widely applied to the fields of nanometer electronic devices, sensors and the like.

A system for sequencing a polynucleotide strand including a device with a layer stack on a silicon wafer. The layer stack may include a first electrode and a second electrode separated by a dielectric insulating layer and a nanohole drilled through the layer stack so that the first and second electrodes are rotationally arranged around the nanohole. A polynucleotide strand with at least one nucleotide and at least one electroactive label may be pulled through the nanohole. The system may additionally include a controller that may apply an electrical signal to the first and second electrodes, measure a current (I) as a function of an applied potential (V) when an electroactive label is guided through the nanohole of the device, and adjust an electrical voltage to pull the polynucleotide strand through the nanohole at a predetermined speed.

A sensor device (902) for a nanopore sensor, the sensor device (902) comprising: an insulating substrate (903); one or more wells (908) for containing a fluid, where the one or more wells (908) are formed on a first side of the substrate (903); a sensor electrode (910) for detecting an ionic current in each of the one or more wells (908); wherein the sensor electrode (910) is formed on the first side of the substrate (903) at the base of the one or more wells (908); one or more contacts (914) formed on a second side (903) of the substrate; and one or more through holes (912) extending through the substrate (903); wherein the one or more through holes (912) connect the sensor electrode (910) to the one or more contacts (914); wherein the electrode (910) comprises a different structure than the one or more contacts (914), and / or the sensor electrode (910) is made of a different material or materials than the one or more contacts (914).

The application provides a secondary battery and a power utilization device, and relates to the field of batteries. The secondary battery comprises a positive electrode sheet, a negative electrode sheet and a separator film, wherein the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer arranged on at least one side surface of the positive electrode current collector, the compaction density of the positive electrode film layer is 2.0 g / cm 3 to 3.0 g / cm 3 ; the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer arranged on at least one surface of the negative electrode current collector, the compaction density of the negative electrode film layer is 1.4 g / cm 3 to 1.85 g / cm 3 ; and the separator film comprises a base film, the thickness of the base film is 4 to 12 mu m, and the base film is provided with nano-pores with an average pore diameter of 10 to 300 nm. The secondary battery has high energy density and improved safety performance.

The invention reduces the energy level of fast-ignation lasers required for whispering gallery mode magnetic inertial fusion to the millijoule level by applying dual-wavelength laser irradiation to the central plate of a cryogenic deuterium target, which is typically a cubic target. In the center of the cubic target located in a biased magnetic field, there is a nanometer hole for generating a new magnetic field. The target also contains lithium nanoparticles that enhance energy deposition and produce tritium through lithium-neutron reactions, further improving the overall efficiency of the fusion process.

The invention relates to the technical field of semiconductors, and discloses a deep ultraviolet LED structure and a preparation method thereof, the deep ultraviolet LED structure comprises an LED substrate, and the LED substrate comprises a substrate, a non-doped AlN buffer layer, a GaN / AlN superlattice layer, an n-type AlGaN layer, an active layer, a p-type AlGaN layer and a p-type GaN cover layer which are stacked in sequence; openings of the plurality of nanoholes are located in the surface of one side, back to the p-type AlGaN layer, of the p-type GaN cover layer, and the nanoholes penetrate through the p-type GaN cover layer, the p-type AlGaN layer and the active layer; the isolating layer is positioned on the inner wall of the nanopore; and the metal nanoparticles are located on the surface of one side, back to the p-type AlGaN layer, of the p-type GaN cover layer and cover the surface of one side, back to the inner wall of the nanopore, of the isolation layer. According to the deep ultraviolet LED structure, the LSPR effect between the metal nanoparticles and the active layer can be enhanced, the light output intensity and effect are improved, and the forward light output intensity and effect of the deep ultraviolet LED structure are improved.

The invention discloses a silicon-carbon composite material and a preparation method thereof, a battery and electric equipment, the silicon-carbon composite material comprises secondary particles of multi-layer graphene and nanometer silicon, nanometer holes are formed in sheet layers of the multi-layer graphene, the nanometer silicon is deposited in the nanometer holes, and the BET specific surface area of the silicon-carbon composite material is smaller than or equal to 6 cm < 2 > / g. Therefore, the nano-silicon is formed in the nano-pores, and in the process of intercalation and deintercalation of the nano-silicon, the nano-pores can limit infinite volume expansion of the nano-silicon while reserving a space for volume expansion of the nano-silicon, so that the probability of collapse of the electrode structure is reduced, and the cycle capacity retention rate of the battery is improved.

A negative electrode active material which includes a silicon-based composite represented by SiOa (0≤a<1), and a carbon coating layer distributed on a surface of the silicon-based composite, and which has a bimodal pore structure including nanopores and mesopores. In a lithium secondary battery including the negative electrode active material, an oxygen content in the silicon-based composite can be controlled to improve initial efficiency and capacity characteristics, and a specific surface area can also be controlled, and thus a side reaction with electrolyte can be reduced.

The invention discloses a nanofluidic calculator and chip based on ion transmission, the nanofluidic calculator comprises a nanofluidic ion calculation module, the nanofluidic ion calculation module uses the behavior and process of ion transmission in a nanopore channel to complete calculation, and the nanofluidic ion calculation module is composed of a plurality of nanofluidic ion memristors. The device further comprises an input module, a control module, a nanofluidic ion calculation module and a display module. The input module is an array keyboard and is positioned below the front surface of the calculator; the control module is composed of a micro-control chip and a peripheral circuit of the micro-control chip and located in the calculator. The nanofluidic ion calculation module is positioned above the front surface of the calculator and consists of a plurality of nanofluidic ion memristors; the display module is a display screen, is used for displaying numbers and calculation results and is positioned in the middle of the calculator; and the control module is connected with the nanofluidic ion calculation module, and is used for controlling the input voltage of the nanofluidic ion calculation module and reading a calculation result.

The invention discloses an on-chip spectrum sensing structure, a pixel unit and a preparation method and application thereof. The on-chip spectrum sensing structure comprises a metal layer, a dielectric layer and a detector, nano-pore channels are formed in the metal layer and the dielectric layer, and the nano-pore channels extend into the dielectric layer from the surface of the metal layer; near-infrared light forms surface plasmon resonance at the interface of the metal layer and the dielectric layer in the nanopore channel, so that part of near-infrared light in a selected narrow wavelength range is transmitted to the detector, and a corresponding electric signal is formed. According to the on-chip spectrum sensing structure provided by the invention, near-infrared broadband calculation spectrum sensing with high spectral fidelity can be realized, radiation and ohmic loss are effectively inhibited by a nonlinear parameterized design framework, and high transmission efficiency is ensured; the multi-channel super-pixel system structure generated by the method realizes simultaneous point spectrum and snapshot hyperspectral imaging, and shows the potential of the compact platform for field deployment and chip spectrum sensing application.

The invention provides a COF material, a perovskite battery, a preparation method of the perovskite battery and an electric device. X ions in the COF material are positive ions containing imidazole. The COF material for the perovskite solar cell, provided by the invention, has very strong adsorption capacity on I2; besides, the COF nanopore contains a plurality of N-containing and O-containing electron-rich groups and also contains pi electron conjugated structures such as a benzene ring and imidazole, and imidazole ions also serve as hydrogen bond donors, so that dynamic active sites in the COF nanopore are increased, and adsorption of I2 is further promoted through the synergistic effect of hydrogen bonds and electron-rich sites; therefore, the COF material can weaken the chemical reaction between the metal electrode and the perovskite, thereby inhibiting the corrosion of the metal electrode in the perovskite solar cell. The COF material also contains a plurality of passivation groups such as an oxygen-containing functional group and a nitrogen-containing functional group, and the passivation groups can passivate Pb < 2 + > defects in the perovskite layer.

A system for sequencing a polynucleotide strand including a device with a layer stack on a silicon wafer. The layer stack may include a first electrode and a second electrode separated by a dielectric insulating layer and a nanohole drilled through the layer stack so that the first and second electrodes are rotationally arranged around the nanohole. A polynucleotide strand with at least one nucleotide and at least one electroactive label may be pulled through the nanohole. The system may additionally include a controller that may apply an electrical signal to the first and second electrodes, measure a current (I) as a function of an applied potential (V) when an electroactive label is guided through the nanohole of the device, and adjust an electrical voltage to pull the polynucleotide strand through the nanohole at a predetermined speed.

The invention provides a full-color Nano-LED (Light Emitting Diode) array. The full-color Nano-LED array comprises a sapphire substrate; sequentially superposing an N-type gallium nitride layer and a dielectric layer on the sapphire substrate; nanowires, wherein each nanowire is grown on a nanometer circular hole reserved in the dielectric layer; the transparent electric insulation layer is filled among the plurality of nanowires; p electrodes, wherein each P electrode is correspondingly arranged on each nanowire; the first scanning lines are arranged on the multiple P electrodes in the first direction, the number of the first scanning lines is multiple, and the multiple first scanning lines are arranged in parallel in the second direction; the N electrodes are arranged on the lower surface of the sapphire substrate, and the position of each N electrode corresponds to the position of each nanowire; the second scanning lines are arranged on the lower surfaces of the N electrodes in the second direction, the number of the second scanning lines is multiple, and the second scanning lines are arranged in parallel in the first direction. According to the array, an alternating current driving mode is adopted, and accurate regulation and control of submicron pixels are achieved.

An image sensor may include a polydimethylsiloxane (PDMS) layer that is subwavelength, hydrophobic, and / or antireflective. The PDMS layer may be fabricated to include a surface having a plurality of nanostructures (e.g., an array of convex protuberances and / or an array of concave recesses). The nanostructures may be formed through the use of a porous anodic aluminum oxide (AAO) template that uses a plurality of nanopores to form the array of convex protuberances and / or the array of concave recesses. The nanostructures may each have a respective width that is less than the wavelength of incident light that is to be collected by the image sensor to increase light absorption by increasing the angle of incidence for which the image sensor is capable of collecting incident light. This may increase the quantum efficiency of the image sensor and may increase the sensitivity of the image sensor.

The invention relates to the technical field of lithium battery materials, in particular to a composite current collector with a nanopore structure and a preparation method and application thereof.The composite current collector comprises a first base material layer, and at least one side of the first base material layer is sequentially provided with a nanopore base material layer, a base layer and a metal layer; the nanopore base material layer is subjected to hole shrinkage treatment so that the nanopore base material layer can anchor the bottoming layer; the bottom layer is arranged on the outer side of the nanopore base material layer, so that reliable connection with the metal layer on the outermost side can be realized; meanwhile, nano-pores in the nano-pore base material layer are moderately shrunk through reducing treatment to form'anchoring points' so as to enhance the binding force of the metal layer and improve the thermal expansion and cold contraction resistance, so that the composite material is suitable for a more stringent application environment, meanwhile, acid liquor residues in the pores are reduced, and the corrosion risk is remarkably reduced.

A sensor device (902) for a nanopore sensor, the sensor device (902) comprising: an insulating substrate (903); one or more wells (908) for containing a fluid; wherein the one or more wells (908) are formed on a first side of the substrate (903); a sensor electrode (910) for detecting an ionic current in each of the one or more wells (908); wherein the sensor electrode (910) is formed on the first side of the substrate (903) at the base of the one or more wells (910); one or more through holes (912) extending through the substrate (903); wherein the one or more through holes (912) are connected to the sensor electrode (910); wherein the one or more through holes (912) each comprise a conductive cap (950) at one or both ends of the through hole (912).

The application discloses a preparation method of an electronic device based on a gold nanometer sawtooth grating structure, a device and a chip. A nano-hole-possessing soft film is used to perform imprinting on a photoresist layer coated on a glass substrate, so as to form a nano-square array structure on the glass substrate. Residual layers of the photoresist layer between the nano-square array structure and an organic glass layer coated on the glass substrate are etched, so as to form a to-be-angle thermal evaporation structure on the glass substrate. An angle thermal evaporation technology is used to perform thermal evaporation on the to-be-angle thermal evaporation structure at a specific incident angle, so as to form a chromium / gold composite thin film coating layer on the to-be-angle thermal evaporation structure. The organic glass layer, the photoresist layer and selected connecting lines on the glass substrate are peeled off, so as to obtain the electronic device based on the gold nanometer sawtooth grating structure. The preparation method has low cost and high throughput, can be used to prepare a large-area gold nanometer sawtooth grating structure, and realizes mass production of the electronic device based on the gold nanometer sawtooth grating structure.

The application relates to the technical field of semiconductor photoelectric devices, and discloses a light-emitting device and a preparation method, the light-emitting device comprising a substrate layer, a buffer layer, a porous structure and a light-emitting structure layer, the buffer layer being located on one side surface of the substrate layer, and the buffer layer having a target region; the porous structure being embedded in the target region, the porous structure comprising a gallium nitride column, and the gallium nitride column having nanopores; the light-emitting structure layer being located on one side surface of the gallium nitride column away from the substrate layer, the light-emitting structure layer comprising a first doped semiconductor layer, a light-emitting layer and a second doped semiconductor layer, the first doped semiconductor layer being located on one side surface of the gallium nitride column away from the substrate layer, the light-emitting layer being located between the first doped semiconductor layer and the second doped semiconductor layer, and the conduction type of the first doped semiconductor layer being opposite to that of the second doped semiconductor layer. The application reduces the non-uniformity of pore diameters caused by large-area poration, and further reduces the non-uniformity of stress relaxation degrees.

The invention belongs to the field of micro-nano structures, and relates to a double-layer gold nanopore structure supported by a nano needle tip as well as a preparation method and application of the double-layer gold nanopore structure. According to the preparation method, the double-layer gold nanopore structure supported by the nano needle tip is obtained through an electron beam thermal evaporation system, a polystyrene microsphere self-assembly technology and reactive ion etching (RIE), the preparation process is simple, the cost is low, the repeatability is good, the structural stability is good, and the tolerance is high. Compared with a single-layer gold nanopore structure, the single-layer gold nanopore structure not only has more modes, but also presents complex multi-mode response dependent on pumping wavelength.

A device for detecting an analyte is provided. The device comprises: an optical system having a point spread function, a substrate, a passivation layer provided on the substrate, and a plurality of nanoholes distributed within the passivation layer.

The invention provides an electrolyzer system and a method of electrode manufacturing. The electrolyzer system may include a first vessel in communication with the electrolyzer stack, a power source, an electrode, a separator, a membrane, and a second vessel in communication with the electrolyzer stack. The electrode may include a catalytic material and a microporous and / or nanopore structure. A method of electrode fabrication may include providing a substrate, contacting the substrate with an acidic solution, applying an electrical current to the substrate while depositing a primary material and a support material comprising a sacrificial material onto the substrate, and leaching the sacrificial material.

The invention provides a micro-glass nanopore manufacturing method which comprises the following steps: drawing a glass capillary into a micro-glass test tube with one closed end through a laser micro-tube drawing instrument for setting drawing parameters; acquiring image data of the closed end of the micro-glass test tube; analyzing and processing the image data of the closed end of the micro-glass test tube, judging whether the closed end of the current micro-glass test tube is matched with target drawing data or not, if so, stopping the drawing process of the micro-glass test tube, otherwise, adjusting drawing parameters, and drawing the micro-glass test tube again; placing the needle-shaped micro-electrode into the micro-glass test tube through the open end of the micro-glass test tube; a micro-glass test tube nano-pore preparation environment control chamber is constructed in advance, environment parameters of the micro-glass test tube nano-pore preparation environment control chamber are regulated and controlled, and a nano-pore is formed in the closed end of the micro-glass test tube through a dielectric breakdown method. The method provided by the invention is low in cost, and the formed nano aperture is controllable.

A plastic composite structure, a preparation method therefor and an application thereof. The plastic composite structure comprises: a first metal layer and a second metal layer which are stacked and connected to each other, wherein the first metal layer and the second metal layer are made of different materials; and a first oxide film layer and a first plastic layer which are sequentially stacked on the surface of the first metal layer that is not connected to the second metal layer, and / or a second oxide film layer and a second plastic layer which are sequentially stacked on the surface of the second metal layer that is not connected to the first metal layer. The first oxide film layer comprises a plurality of first nanopores, and the minimum distance between two adjacent first nanopores is less than or equal to 50 nm; and / or the second oxide film layer comprises a plurality of second nanopores, and the minimum distance between two adjacent second nanopores is less than or equal to 50 nm.

The invention discloses a nano-cavity sensor for efficiently exciting fluorescence. The nano-cavity sensor comprises a quartz substrate layer, a micro-lens layer and a metal film layer which are sequentially arranged from bottom to top, the micro-lens layer is located above the quartz substrate layer and comprises a plurality of spherical-table-shaped micro-lenses protruding upwards; and the metal film layer is positioned on the quartz substrate layer and the micro lens layer, and is provided with through nano holes which are in one-to-one correspondence with the centers of the top planes of the table-shaped micro lenses. When exciting light enters, the spherical table type micro lens can focus a light beam emitted into the lens cavity from the bottom to the bottom of the nanopore to form a zero-mode waveguide effect, and fluorescent substances in the nanopore are excited through an evanescent field. The spherical table type micro lens modulates the direction of an excitation light beam, the light beam is converted into local enhanced excitation from parallel incidence, modulation of excitation photoelectric magnetic field distribution at the bottom of a nanopore and in a nanocavity in a solution environment is achieved, and distribution of an electromagnetic field is described by using a caustics line. According to the device, the excitation efficiency of a light path system on fluorescence is remarkably improved.

The invention discloses a composite anode plate with gradient pore channels and a self-repairing function and a preparation method of the composite anode plate. The anode plate comprises a titanium mesh substrate, the surface of the titanium mesh substrate is provided with three-stage gradient pore channels with micropores of 30-100 microns, mesopores of 3-10 microns and nanopores of 150-300 nm, the pore channels are asymmetrically distributed in a staggered mode, and the included angle between the pore channels and the horizontal plane is 30-60 degrees; a Ta2O5-IrO2 gradient intermediate layer, a WO3 nanorod array and a PbO2 active layer of a Na2WO4 microcapsule are sequentially covered on the titanium mesh substrate; the content of Ir in the Ta2O5-IrO2 gradient intermediate layer is 15-18 wt%, the thickness of the Ta2O5-IrO2 gradient intermediate layer is 50-80 nm, the rod diameter of the WO3 nanorod array is 50-80 nm, the length of the WO3 nanorod array is 200-300 nm, and the microcapsules release WO4 < 2-> at 80 DEG C to achieve The preparation method comprises the steps of titanium mesh pretreatment, femtosecond laser grading punching, gradient middle layer coating sintering, WO3 nanorod pulse electrodeposition and PbO2 composite electrodeposition. The anode plate has the advantages of blockage resistance, corrosion resistance and high catalytic activity, can reduce the maintenance cost, and is suitable for complex oil field water treatment.

The invention belongs to the field of negative electrode materials, and particularly relates to framework self-reinforced porous carbon, a composite negative electrode active material, a negative electrode material, a negative electrode, a preparation method and application. The framework self-reinforced porous carbon comprises porous carbon with a pore structure and a reinforced layer filled on the pore wall of the porous carbon; the strengthening layer comprises a ceramic layer with a nanopore structure; the material of the ceramic layer is at least one of SiC, SiOxCy, SiCN and SiBCN; wherein the value range of x in the SiOxCy is 0.5 to 1.5, and the value range of y in the SiOxCy is 0.5 to 2.5. The material provided by the invention is helpful for improving the capacity, wide temperature range and long stability of a subsequently prepared battery.

The application relates to a solid electrolyte thin film and a preparation method thereof. The method comprises uniformly dispersing carbon-based nanomaterial and proton-conducting material in a polyvinylidene fluoride (PVDF) solution, and preparing a double-ion-conductor solid electrolyte thin film with a nano-pore channel structure through electrospinning and a template method. During the preparation process, the voltage, flow rate and receiving distance are controlled to ensure the uniformity of the channel structure and the conductivity. The obtained thin film achieves a good balance between high ion mobility and mechanical strength, and is suitable for high-performance energy storage devices, such as solid-state batteries. The electrolyte thin film shows excellent electrochemical performance and long cycle life.

The utility model discloses a fluid pool for clamping a solid nanopore chip, belongs to the technical field of fluid pools, and aims to solve the problems that an existing device is complex in design and high in cost, the chip is easily damaged due to misoperation, the rapid liquid injection efficiency is low, a product is damaged due to repeated disassembly, and the service life and the detection effect are influenced. The sample adding device comprises an integrated sample adding pool, sample adding holes are symmetrically formed right above the two sides of the integrated sample adding pool, a push-pull type clamping groove is formed in the middle of the interior of the integrated sample adding pool, a groove is formed in the middle of the clamping groove, the nanopore chip is placed in the groove, a solution flows through a solution hole in the middle, and the nanopore chip is placed in the solution hole in the middle of the integrated sample adding pool. The left side and the right side of the integrated sample adding pool are respectively provided with a silver wire electrode interface located right above the integrated sample adding pool, and the silver wire electrode interfaces are located at the inner sides of the sample adding holes.

The invention discloses a femtosecond laser preparation method of a porous silicon-based integrated optical waveguide gas sensor, and belongs to the technical field of micro-nano optoelectronic devices and gas sensing. Comprising an oxidized porous silicon film; the three-dimensional waveguide structure is positioned in the oxidized porous silicon film and is formed by arranging positive refractive index densified track units; the fluorescent probe molecules are embedded into the waveguide; to-be-detected gas can interact with the fluorescent probe molecules so as to change the luminescence characteristic of the waveguide; two ends of the three-dimensional waveguide structure are respectively coupled with a section of optical fiber as a light input end and a light output end. A fluorescence probe and an optical waveguide are integrated in an oxidized porous silicon film through a femtosecond laser induced collapse densification technology, and a large-specific-surface-area nanopore structure and an evanescent field enhanced waveguide structure are utilized to realize full-optical-process high-sensitivity and ultrafast-response real-time optical detection of gas to be detected at normal temperature.