18 results about "Silver film" patented technology

This invention belongs to the field of thermoelectric thin film technology, specifically relating to the preparation of a high-density domain-structured flexible silver telluride thin film and its reversible thermoelectric performance control method. The film possesses a high-density strip-like domain structure with numerous twins and stacking faults. The high-density domain boundaries provide a large number of ultra-highly active sites, allowing for wide-range reversible control of thermoelectric performance through simple post-processing methods, such as oxidation annealing, chemical and physical deposition of nano-metal particles. The high-density domain-structured silver telluride thin film prepared by this invention uses a silver film prepared by magnetron sputtering as a precursor, reacting it with tellurium vapor in a tube furnace to generate a dense thin film. The preparation method is simple, low-cost, highly reproducible, and operates at a low reaction temperature, making it suitable for large-scale preparation and compatible with flexible substrates such as polyimide. The high thermoelectric performance and reversible control characteristics of this film are of great significance for applications in high-performance flexible thermoelectric generators and multifunctional sensors.

The utility model provides a kind of refractive index sensing device based on titanium dioxide nanopore array, it is related to micro-nano photoelectronic technical field, the device includes titanium dioxide substrate, the titanium dioxide substrate surface is equipped with the nanopore array of square periodic arrangement;Gold film layer, the gold film layer covers in nanopore side wall and hole bottom surface;Silver film layer, the silver film layer covers in the upper surface of the titanium dioxide substrate, and the silver film layer with the gold film layer is connected at the orifice edge of nanopore;Silica protective layer, the silica protective layer covers in the exposed surface of the gold film layer, silver film layer, forms the package protection of metal layer.The utility model improves sensitivity and quality factor, and with low-cost material and local coating reduces cost and simplifies structure, also rely on protective layer to enhance stability, realize high performance and economy compatibility.

The crack sensor based on metal glass large strain range high sensitivity comprises, from bottom to top, an insulating layer, an adhesion layer, a metal glass layer and a crack silver film; the insulating layer is formed by deposition on a strain detection part through a magnetron sputtering mode; the adhesion layer is formed by deposition of metal titanium on the surface of the insulating layer through a magnetron sputtering mode; the metal glass layer is deposited on the surface of the adhesion layer through a sputtering mode; and the crack silver film is prepared by sputtering a metal silver film on the surface of the metal glass layer in a pre-compressed state and releasing the strain to prepare the crack silver film. The crack sensor can be prepared in situ and conformally, has strong adhesion to the substrate, good sensitivity, can effectively convert the generated strain into resistance change, and has great practical production significance.

The application relates to a preparation method of a hollow core optical waveguide and belongs to the technical field of optical material preparation. After a conventional thermal ion exchange process is carried out, a deposition process is carried out by using hydrogen, hydrogen is transmitted into the reserved part by a hydrogen transmission machine, and then the overall environment temperature is increased to 250 DEG C-500 DEG C; hydrogen is used as a reducing agent, silver ions are given electrons by breaking hydrogen bonds at high temperature, and the silver ions buried in the inner wall are reduced into silver single elements to form a silver film. The hollow core optical waveguide is simple to manufacture, does not need to be applied to large equipment, and has relatively low process technical requirements and manufacturing cost.

A flexible eye-tracking and sensing device includes a flexible nano-silver film sensor. The flexible nano-film sensor is attached to the upper eyelid and connected in series with a power supply and a voltage divider resistor to form a circuit. A sound card is connected in parallel with the flexible nano-film sensor, and the sound card is electrically connected to a computer via wires. Using the above device for eye-tracking signal acquisition, preprocessing, and recognition, real-time eye-controlled human-computer interaction is realized. Experimental verification shows that the flexible eye-tracking and sensing device can not only realize eye-tracking control of software such as virtual games and virtual keyboards, but can also be used in combination with hardware facilities such as robotic arms, so that eye-tracking control is no longer limited to virtual scenes, but can also realize the control of real-world objects.

The application relates to a preparation method of a low-temperature-resistant cable and relates to the technical field of cable preparation. The low-temperature-resistant cable is prepared by adopting copper, manganese, nickel, cobalt, zinc, tin, titanium and graphite powder as a conductor prepared by depositing a nano-silver film on the surface of alloy micro wires, twisting the conductor according to requirements to obtain a core, mixing hydrogenated nitrile rubber, boron nitride nanosheets, refined paraffin, 4-hydroxycyclohexyl trimethoxysilane, ammonium polyphosphate, silicone oil and methyl methacrylate to prepare an insulation protective sleeve, and wrapping the core to obtain the low-temperature-resistant cable which can be applied to an intelligent power distribution system under extremely cold conditions. In the application, the initial resistance of the conductor under low temperature is reduced by optimizing the conductor, the NTC effect is effectively started, the heat conduction performance of the insulation protective sleeve is adjusted, the low-temperature brittle stop time of the cable under extremely cold conditions is reduced, the high-temperature stable temperature of the cable is reduced, the low-temperature brittleness and high-temperature aging of the cable insulation protective sleeve are effectively inhibited, and the working life of the cable in the intelligent power distribution system is prolonged.

This invention belongs to the field of spectral modulation technology, specifically relating to a dual-peak tunable MIMIM structure spectral modulator, its fabrication method, and its applications. This dual-peak tunable nanocavity spectral modulator is formed by setting a tunable layer structure between two metal layers; the tunable layer structure is composed of a first silicon dioxide layer, a second silver film layer, and a second silicon dioxide layer stacked sequentially; the thickness of the second silver film layer is 10 nm to 50 nm, and the thickness of both the first and second silicon dioxide layers is 60 nm to 160 nm. The five-layer dual-peak tunable MIMIM structure spectral modulator provided by this invention exhibits a double-resonance peak characteristic in its reflection spectrum. These double resonance peaks can be precisely matched with the excitation wavelength of the laser source and the emission wavelength of the quantum dot, respectively, thereby enabling higher-efficiency fluorescence enhancement by simultaneously utilizing both resonance characteristics. Furthermore, this structure can also be applied in the field of high-sensitivity refractive index sensors.

The utility model discloses a kind of seedling protection cups suitable for passion fruit, fructus momordicae and other crops, it is related to agricultural seedling protection technical field, including cup body, the lower half part of cup body outer wall is covered with silver film, the top of the cup body is provided with ventilation component, detachable assembly is arranged between the ventilation component and the cup body, detachable connection is realized between the ventilation component and the cup body by detachable assembly, the top of the cup body can be changed to two kinds of state of ventilation / airtight by the ventilation component.The beneficial effects of the utility model are that: by ventilation component state switching, greenhouse seedling→progressive seedling→natural exposure high survival rate seedling is realized, the problem of insufficient seedling in traditional seedling, low survival rate of transplanting is solved, especially suitable for large-scale seedling and environment variable open-air planting scene.

This invention relates to a method for fabricating a gadolinium oxysulfate X-ray scintillation screen based on a silicon microchannel array, as well as the X-ray scintillation screen and its applications, belonging to the field of X-ray imaging technology. It primarily addresses the technical problem of low resolution in existing X-ray scintillation screens. This invention fabricates a tetragonal silicon microchannel structure through photolithography, photoelectrochemical etching, and back-side thinning processes, fundamentally avoiding the problem of microchannel misalignment. The use of ALD tungsten film deposition and pulse electroplating for silver film deposition effectively reduces X-ray crosstalk. Furthermore, the good chemical compatibility between tungsten and silver ensures uniform silver film deposition without microchannel blockage, and the silver film possesses high reflectivity. Vacuum infusion is used to completely fill the microchannels with fluorescent material, avoiding the presence of air or other substances with significantly different refractive indices from the fluorescent material within the channels, and also solving the scattering and reflection problems caused by gaps between particles, effectively improving detection efficiency.

This invention provides a diffusion welding method and weld joint for magnesium alloys, relating to the field of welding technology. The diffusion welding method includes: Step S1, depositing silver on the surface of the magnesium alloy base material to be welded using magnetron sputtering to form a silver film; Step S2, coating the silver film with a nano-metal particle slurry and drying it to form a nano-metal particle layer, obtaining a workpiece to be welded; Step S3, assembling two workpieces to be welded so that the nano-metal particle layers adhere, obtaining an assembly; Step S4, performing pulsed current-assisted diffusion welding on the assembly under vacuum conditions or an inert gas protective atmosphere to obtain a weld joint. The diffusion welding method for magnesium alloys provided by this invention can avoid defects such as grain growth and large deformation of the base material, and also yields a weld joint with high strength.

This invention provides a shape memory electromagnetic shielding polyimide multilayer thin film composite material and its preparation method, relating to the field of electromagnetic shielding materials technology. The polyimide multilayer thin film composite material provided by this invention includes a polyimide film layer and silver film layers composited on both sides of the polyimide film layer; the polyimide film layer includes a polyimide matrix and carbon functional fillers dispersed in the polyimide matrix, the carbon functional fillers including reduced graphene oxide and carbon nanofibers. This invention uses polyimide as the material matrix, introducing reduced graphene oxide and carbon nanofibers therein. These two carbon functional fillers are mixed and stacked on a small scale to form a π-π conjugated effect, and the reduced graphene oxide is grafted onto the polyimide, thus giving it good dispersibility; in addition, the combination of the surface-composite silver film layer with the shape memory properties of PI and the electromagnetic wave dissipation capability of the conductive fillers gives the material an intelligently regulated electromagnetic shielding function.

The utility model discloses a kind of high-temperature-resistant toughenable double-silver low-emissivity coated glass, it relates to coated glass technical field, the high-temperature-resistant toughenable double-silver low-emissivity coated glass includes glass main body, glass main body is composed of base layer, double-silver low-emissivity coated structure and protective layer, double-silver low-emissivity coated structure is set between base layer and protective layer.The high-temperature-resistant toughenable double-silver low-emissivity coated glass sets double-silver low-emissivity coated structure at the top of toughened glass, can improve the overall performance of glass under the use of double-silver low-emissivity coated structure overall structure, and hollow glass structure is set at the top of double-silver film layer, the essence is through the composite mechanism of film layer reflection radiant heat and hollow layer blocking conduction heat, equivalent to build heat preservation layer in glass, this design not only significantly improves heat insulation performance, but also can give consideration to sound insulation, safety and energy saving, and then through the synergistic effect of film layer optical property and hollow structure thermal resistance, improve the comprehensive performance of glass.

The application provides an optical transparent structure and a performance optimization method, device, electronic equipment and medium thereof, and comprises a micro-nano device, a first dielectric spacing layer, a disk array, a second dielectric spacing layer, an infrared reflection layer and an anti-reflection layer connected in sequence, wherein the micro-nano device, the first dielectric spacing layer and the disk array form an array, the micro-nano device and the disk array are silver films, the first dielectric spacing layer, the second dielectric spacing layer and the anti-reflection layer are made of silicon nitride, and the optical transparent structure is optimized by using reverse optimization based on a genetic algorithm. The application has the beneficial effects that: through the optical transparent structure and the reverse optimization based on the genetic algorithm, multi-band compatibility of visible light, infrared and laser bands is realized, and a heat management function is realized at the same time.

A method of making a combined sinter-ready silver film and carrier (1), the method comprising the steps of: a) forming a carrier (2) comprising a design opening (5); b) casting a silver film layer (7) into the design opening (5); e.g. casting a silver paste; and c) drying the carrier (2) and the silver film layer (7) to form the combined sinter-ready silver film and carrier (1). The carrier (2) can comprise a plastic carrier, which can be formed by permanently bonding two plastic films using a plasma bonding method or using a temperature-stable glue. The carrier (2) can comprise a stencil layer (3) and a backing layer (4). The stencil layer (3) can define the design opening (5). The backing layer (4) can be configured for sealing a bottom of the design opening (5), wherein a top of the design opening (5) can be open for receiving the cast silver film layer (7) at the beginning of step b).

This suppresses corrosion of the low-resistance conductive layer using a copper film in the TFT layer, which is electrically connected to the first electrode using a silver film. [Solution] A display device 50a comprising a base substrate 10, a thin-film transistor layer 30 provided on the base substrate 10 and having a low-resistance conductive layer 26a containing a copper film arranged corresponding to each of the multiple subpixels constituting a display area D, and a light-emitting element layer 40 provided on the thin-film transistor layer 30 and having a plurality of first electrodes E, a plurality of light-emitting functional layers 36 and a common second electrode 37 stacked in order corresponding to the plurality of subpixels, wherein each first electrode E containing a silver film is electrically connected to the low-resistance conductive layer 26a, and the low-resistance conductive layer 26a is covered with a first metal layer 27a having etching resistance to the etching solution of the silver film.

This invention discloses a cutting tool and method using a micro-heat pipe network and variable frequency amplitude vibration-assisted cutting, belonging to the field of metal cutting technology. It is used in precision and ultra-precision turning, milling, and grinding processes. The tool is a cylindrical tool body with a clamping edge on both the end face and side face. The end face and side face of the cylindrical tool body are machined with straight groove-shaped microtextures containing a silver film. Starting from these microtextures, straight groove-shaped and spiral-shaped micro-heat pipes covered with copper foil extend out, forming highly efficient friction reduction and heat dissipation capabilities. Simultaneously, during turning, the rotation of the tool causes intermittent cutting effects with different frequencies and amplitudes, equivalent to ultrasonic-assisted vibration turning. This machining method ensures that the tool and workpiece separate periodically during cutting, thereby reducing the amplitude of cutting vibration, effectively reducing tool wear rate, and improving the surface quality of the workpiece. The presence of micro-textured grooves reduces the contact area between the tool and workpiece, reducing the friction between them. This greatly improves tool life, ensures the quality of the machined surface, and is suitable for vibration reduction and heat dissipation in high-speed cutting, precision and ultra-precision cutting.

This utility model discloses a high-brightness enhancement module, including a reflective film and a brightness enhancement film disposed on both sides of a light guide plate. The reflective film includes a first PET film layer, an aluminum film layer, an adhesive layer, a protective coating, a silver film layer, a base coating layer, and a second PET film layer. The refractive index of the base coating layer is between 1.61 and 1.66. The brightness enhancement film includes a diffuser sheet, a first brightness enhancement film sheet, and a second brightness enhancement film sheet. This utility model uses a reflective film and a brightness enhancement film disposed on both sides of the light guide plate. An aluminum film layer and a silver film layer are disposed within the reflective film, and a PET film layer and an adhesive layer are disposed to enhance the adhesion and stability of the metal film layer. A base coating layer and a protective coating layer with appropriate refractive indices are disposed to refract the reflected light, allowing more light to be concentrated and enter the brightness enhancement film on the other side of the light guide plate, reducing light loss. By disposing of two brightness enhancement film sheets on the brightness enhancement film and setting the prism structure on them relatively tilted, the light passing through the two layers of staggered triangular prisms undergoes multiple reflections and refractions, thereby reducing light loss and enhancing the brightness of the brightness enhancement film assembly.

This application proposes a kanamycin U-shaped fiber optic sensor, its fabrication method, and a fiber optic sensing system, belonging to the field of sensor detection technology. The sensor includes: a fiber core, a cladding, a silver film, a polydopamine layer, silver nanoparticles, a kanamycin aptamer, and mercaptohexanol. The silver film serves as a metal-sensitive layer, used to achieve wave vector matching between free electrons on the surface of the silver film and evanescent waves to excite plasmon resonance on the surface of the silver film. The polydopamine layer is used to immobilize the silver nanoparticles. The silver nanoparticles are used to excite the LSPR effect and to modify the surface of the kanamycin aptamer. Mercaptohexanol is used to fill non-specific binding sites. The kanamycin aptamer binds to kanamycin to change the refractive index of the fiber surface, thereby altering the resonance conditions between the evanescent wave and the surface plasmon wave, causing a redshift of the resonance wavelength. The sensor of this application shortens the response time of the kanamycin U-shaped fiber optic sensor, is simple to fabricate, and is small in size and lightweight.