293 results about "Nanohole" patented technology

The invention provides a secondary battery and an electric device, and relates to the field of batteries. The secondary battery comprises a positive pole piece, a negative pole piece and an isolating membrane, the positive pole piece comprises a positive current collector and a positive membrane layer arranged on at least one side surface of the positive current collector, and the compaction density of the positive membrane layer is 2.0-3.0 g / cm < 3 >; the negative pole piece comprises a negative current collector and a negative film layer located on at least one surface of the negative current collector, and the compaction density of the negative film layer is 1.4 g / cm < 3 >-1.85 g / cm < 3 >; the isolating membrane comprises a base membrane, the thickness of the base membrane ranges from 4 micrometers to 12 micrometers, the base membrane is provided with nanopores, and the average pore size of the nanopores ranges from 10 nm to 300 nm. The secondary battery has high energy density and improved safety performance.

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.

Embodiments disclosed herein include nanowire and nanoribbon devices with non-uniform dielectric thicknesses. In an embodiment, the semiconductor device comprises a substrate and a plurality of first semiconductor layers in a vertical stack over the substrate. The first semiconductor layers may have a first spacing. In an embodiment, a first dielectric surrounds each of the first semiconductor layers, and the first dielectric has a first thickness. The semiconductor device may further comprise a plurality of second semiconductor layers in a vertical stack over the substrate, where the second semiconductor layers have a second spacing that is greater than the first spacing. In an embodiment a second dielectric surrounds each of the second semiconductor layers, and the second dielectric has a second thickness that is greater than the first thickness.

Devices for improved nanopore sensing are described. An example device has a structure arranged to separate an analyte reservoir and an outlet chamber. An example device has a structure arranged to separate an analyte reservoir and an outlet chamber. The structure can include an array of nanopore structures, each nanopore structure comprising a passage for fluid connection through the structure between the analyte reservoir and outlet chamber. Control terminals can be arranged for applying a control signal to alter the electrical potential difference across that nanopore structure. Some embodiments include an electronic circuit configured to detect a signal from an electrical transduction element at each nanopore structure. Additional structural features and methods of operating and making the devices are described.

The invention provides a photoelectrochemical biosensor based on a porous membrane as well as a preparation method and application of the photoelectrochemical biosensor, and belongs to the field of photoelectrochemical biosensors. The photoelectrochemical biosensor comprises an electrode, the electrode comprises ITO conductive glass and a composite film coated on the ITO conductive glass, the composite film is obtained by modifying a photosensitive material in a nano-pore channel of a porous film and then connecting a capture probe in the nano-pore channel, and the photoelectrochemical biosensor based on the porous film is obtained. The sensor has the following advantages: 1, other biomolecules can be detected by changing the type of the capture probe, and the sensor has excellent practical application value; 2, the ITO conductive glass is loaded with the porous membrane to replace a traditional metal electrode, so that the detection is accurate, the detection time is short, the cost is low, and the reproducibility and the stability are good;

The invention provides a vertical perovskite soft X-ray detector, a preparation method and an imaging array, which can be applied to the technical field of X-ray detection. The vertical perovskite soft X-ray detector comprises a bottom electrode, a carrier transport layer, a perovskite light absorption layer, a passivation layer and a top electrode from bottom to top, wherein the top electrode comprises a plurality of nano holes, the plurality of nano holes in the top electrode penetrate through the top electrode, the carrier transport layer is located on a lower interface of the perovskite light absorption layer, and the passivation layer is located on an upper interface of the perovskite light absorption layer.

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.

The present disclosure relates to a lithium-ion battery, comprising: a silicon anode comprising an essentially pure amorphous porous silicon film deposited onto a current collector, and comprising a plurality of columnar structures; an electrolyte layer comprising one or more solid components, and a cathode layer.

The invention discloses a nuclide concentration sensor suitable for a supergravity environment. The nuclide concentration sensor comprises a packaging shell, a thin film sensing layer and a signal processing transmission unit, the film sensing layer comprises a selective ion permeation layer, a sensing unit layer and a substrate layer which are sequentially laminated, and a signal acquisition unit connected with the signal processing and transmitting unit is arranged between the sensing unit layer and the substrate layer; the carboxylated nano-pore channel on the selective ion permeation layer, the vertical pore channel on the sensing unit layer and the micro-pore channel on the substrate layer are sequentially communicated with one another, and the upper through hole on the packaging shell, the acquisition area of the pore channels arranged on the thin film sensing layer and the lower through hole on the packaging shell are completely overlapped. The acquisition area of the film sensing layer is communicated with the outside of the packaging shell, and other parts of the film sensing layer and the signal processing and transmitting unit are completely sealed in the packaging shell. The device is of a thin film type structure, is small in size, meets the test requirements of a supergravity model, achieves the rapid detection of the concentration of nuclide ions in a solution, and is high in detection precision.

The utility model relates to the technical field of magnets, in particular to a step-shaped magnet which comprises a plastic support and a magnet block arranged on one side of the plastic support, the plastic support and the magnet block are integrally in a step shape, and an installation hole is formed in the side, away from the magnet block, of the plastic support. The magnet block comprises a magnet body and a corrosion-resistant electroplating protection layer wrapping the outer surface of the magnet body, and a plurality of nano holes are formed in the connecting portion of the corrosion-resistant electroplating protection layer and the plastic support and form a nano hole surface. The plastic bracket is tightly combined with the surface of the nanopore of the corrosion-resistant electroplating protection layer in an integral injection molding manner to form an integral structure; the whole magnetic attraction device is in a step shape and can be firmly installed on a drawer or a door cabinet, the situation that the magnet falls off does not exist, and it can be well guaranteed that the magnetic attraction function is normal and used for a long time.

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 method for producing a substrate having a nanoporous bump may comprise providing a first substrate and a second substrate. The second substrate having a connection metallization. The method may further include electrodepositing a metal alloy by applying a voltage and de-alloying the metal alloy to produce a nanoporous bump. The method may further include compression bonding the nanoporous bump to the second substrate. A bump top side facing away from the first substrate is welded to the connection metallization of the second substrate. After the compression bonding, the second substrate is separated from the first substrate and the nanoporous bump is at least partially transferred from the first substrate to the second substrate.

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 provides an asymmetric double-nanopore metasurface refractive index sensor, a preparation method and a detection method, and relates to the technical field of refractive index detection. The dielectric layer is formed on the surface of the substrate, a plurality of asymmetric nano-pore unit structures are formed in the dielectric layer, each asymmetric nano-pore unit structure comprises a first nano-pore and a second nano-pore, and the first nano-pore and the second nano-pore have different radiuses and / or different relative positions; structural symmetry is destroyed, and a quasi-continuum bound state resonance mode is formed; the asymmetric double-nanopore metasurface refractive index sensor is configured to generate double formants corresponding to a preset working wavelength under excitation of linear polarized light.

A photodetector includes a metal layer that shields incident light and generates surface plasmon polaritons (SPPs), a light absorbing layer that absorbs the generated SPPs and allows charges excited by the absorbed SPPs and a localized electric field effect to tunnel, a dielectric formed at nanoholes in which at least a part of the metal layer is opened, and a semiconductor layer that induces the photocurrent based on an electric field effect of tunneled electrons. The SPPs form localized surface plasmons (LSPs) at an interface where the metal layer meets the dielectric.

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 provides a preparation method of a single crystal black silicon suede, a TOPCon solar cell and a photovoltaic system, and relates to the technical field of crystalline silicon solar cells. The preparation method of the single crystal black silicon textured surface comprises the following steps: carrying out metal auxiliary chemical etching on a single crystal silicon wafer to obtain a target single crystal silicon wafer; and the cylindrical nanopore-shaped black silicon texture surface of the target monocrystalline silicon wafer is etched and reconstructed by using aqueous alkali. The method comprises the following steps: firstly, preparing a black silicon nano suede structure based on MACE to form dense and uniformly distributed deep cylindrical nano-porous black silicon suede; the method comprises the following steps: firstly, preparing a black silicon nano textured structure, then utilizing an alkaline solution to etch and reconstruct a surface textured surface, etching the surface of the black silicon nano textured structure, converting deep nano holes into square pits, generating more nanoscale inverted pyramid structures at the bottom, increasing the average pore diameter, shortening the average pore depth, showing uniform textures on the reconstructed textured surface, reducing the composite center density, and improving the composite center density. And a good passivation effect can be obtained in a subsequent process, and meanwhile, an excellent light trapping effect can be ensured.

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 present invention discloses a method for manufacturing a MEMS probe with a high aspect ratio, which comprises selecting porous anodized aluminum as a substrate material; performing photolithography on the substrate, coating photoresist and performing pattern development; performing etching in the nanopores of the substrate; performing electroplating in the etched grooves, stacking multiple layers of metal; performing CMP treatment on the top metal layer; removing the substrate to obtain a MEMS probe. The present invention etches the nanopores of the porous anodized aluminum into an electroplating mold, which can achieve a higher aspect ratio and a stronger mechanical structure, so that the MEMS probe can maintain its structural stability when a large needle pressure is applied, is not easy to deform or break, and ensures the accuracy and reliability of the test process.

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.

A smart contact lens includes a contact lens, a nanostructures layer, a first sensor, a connector, and a smart module. The nanostructures layer may be anti-bacterial. The smart contact lens may be worn on an eye or may be implanted within an eye. The nanostructures layer is fabricated by depositing a colloidal dispersion onto an electrostatically-coated substrate. The colloidal dispersion is then removed and nanoholes are etched. The electrostatic coating is removed and a biocompatible material is spin-coated onto the substrate. Upon removal, a quasi-randomly distributed nanostructures layer forms.

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.