375 results about "Metal nanowire" patented technology

Composite transparent conductors are described, which comprise a primary conductive medium based on metal nanowires and a secondary conductive medium based on a continuous conductive film.

The present invention provides metal nanowires containing at least metal nanowires having a diameter of 50 nm or less and a major axis length of 5 μm or more in an amount of 50% by mass or more in terms of metal amount with respect to total metal particles.

The invention provides a carbon nano material/metal nano material composite nano ink which comprises solvent, an additive, a carbon nano material and a metal nano material. The carbon nano material/metal nano material composite nano ink is characterized in that the solvent can comprise water, alcohol organic solvent (ethanol(alcohol), isopropanol, n-butanol and the like), ester organic solvent (ethyl acetate, butyl acetate, ethylene-propylene acetate and the like), benzene organic solvent (methylbenzene, dimethylbenzene and the like) and ketone organic solvent (cyclohexanone, acetone, methylethylketone, butanone and the like); the additive comprises surfactant, pH value stabilizer, defoaming agent, diluter, reinforcer and the like; the carbon nano material comprises a single-layer carbon nanotube, a double-layer carbon nanotube, a multi-layer carbon nanotube and graphene; the metal (copper, silver, gold, platinum, nickel and the like, also including an alloy nano material, an ITO metal composite nano material and the like) nano material further comprises a metal nanoparticle, a metal nanowire or a metal nanotube; the components of the nano ink must include one carbon nano component and one metal nano component, such as a single-layer carbon nanotube and copper nanowire composite ink, a double-layer carbon nanotube and silver nanowire composite ink, a single-layer carbon nanotube and silver nanoparticle composite ink or any other possible combination; the components can be regulated according to specific applications; and a composite nano conductive film can be formed on different bases through different electronic printing processes. The ink can be used in the printing of a flexible base material and can be conveniently prepared into a flexible conductive film.

A method for producing flexible, nanoparticle-polymer composite electrodes is described. Conductive nanoparticles, preferably metal nanowires or nanotubes, are deposited on a smooth surface of a platform to produce a porous conductive layer. A second application of conductive nanoparticles or a mixture of nanoparticles can also be deposited to form a porous conductive layer. The conductive layer is then coated with at least one coating of monomers that is polymerized to form a conductive layer-polymer composite film. Optionally, a protective coating can be applied to the top of the composite film. In one embodiment, the monomer coating includes light transducing particles to reduce the total internal reflection of light through the composite film or pigments that absorb light at one wavelength and re-emit light at a longer wavelength. The resulting composite film has an active side that is smooth with surface height variations of 100 nm or less.

The invention provides a preparation method of a flexible strain sensor based on conductive fiber and application thereof. The conductive fiber comprises a metal nanowire as a conductive layer, an electrospun polymer nanofiber membrane as a protective layer and an elastic yarn as an elastic carrier. In the preparation process, the surface of the elastic yarn is coated with a layer of polymer nanofiber membrane by an electrospinning technology first and then the metal nanowire is deposited on the surface structure thereof through multiple dip coating. The prepared flexible strain sensor based on the conductive fiber has the ability of quickly detecting various deformations such as stretching, bending and twisting, and the sensitivity thereof is still maintained to be 90% or above after thenumber of stretching cycles reaches 10,000; the flexible strain sensor can achieve simultaneous detection of human pulse beat, vocal cord vibration and more complex multiple sites, and has a great application potential in smart wearable devices such as virtual reality, human-machine interfaces and health monitoring.

A conductive nanowire film based on a high aspect-ratio metal is disclosed. The nanowire film is produced by inducing metal reduction in a concentrated surfactant solution containing metal precursor ions, a surfactant and a reducing agent. The metal nanostructures demonstrate utility in a great variety of applications.

The invention provides a preparation method and application of conductive ink based on metal nanowire and graphene oxide. The graphene oxide is simultaneously used as a dispersing agent, a thickening agent and a stabilizing agent. The metal nanowire, the graphene oxide, the deionized water, the alcohol solvent, the dispersing agent, the surface active agent, the flatting agent and the de-foaming agent are uniformly mixed at a certain mass ratio, so as to acquire the conductive ink product. The acquired ink can be directly written or printed on various substrate materials so as to construct a conductive circuit with high conductivity, stability, flexibility and high adhesion; the constructed conductive circuit is dried for 3-10 minutes under room temperature, so that ultrahigh conductivity is achieved; furthermore, the graphene oxide is reduced and the metal nanowire is sintered according to the methods, such as, selecting sintering temperature at 50-200 DEG C or performing chemical reduction under room temperature or utilizing an xenon flashlight to sinter, so that the conductivity of the conductive circuit is further increased.

The invention discloses a graphene fiber and a preparation method thereof, wherein the graphene fiber is a composite fiber obtained by doping graphene fiber with metal nanowires, the composite fiber comprises the main components of graphene and the metal nanowires, wherein the mass ratio of the metal nanowires is 0.1% ~ 50%, the graphene is in lamellar morphology, and the metal nanowires and the graphene layers are parallelly and simultaneously arranged along the axial direction of the graphene fiber. The metal nanowire doped graphene fiber is a new high performance and multifunctional fiber material, by doping of the metal nanowires, fiber conductive rate is greatly improved, meanwhile the graphene fiber exhibits good tensile strength and excellent toughness, has the very strong potential application value in many fields such as use as lightweight flexible wires and the like.

Example embodiments are directed to a polarized light emitting diode and method of forming the same. The polarized light emitting diode may include a support layer, a semiconductor layer structure, and/or a polarization control layer. The semiconductor layer structure may be formed on the support layer and may include a light-emitting layer. The polarization control layer may be formed on the semiconductor layer structure and may include a plurality of metal nanowires. The polarized light emitting diode may be configured to control the polarization of emitted light. The method of forming a polarized light emitting diode may include forming on a substrate a semiconductor layer structure with a light emitting layer. A reflecting layer may be formed on the semiconductor layer structure with an attached support layer. The substrate may be removed from the semiconductor layer structure and a polarization control layer including metal nanowires may be formed on the semiconductor layer structure.

A nanowire comprising only metal having an average length of 1 mum or more which could not be produced in the prior art, and a method of manufacturing this wire. This invention provides a method of manufacturing a metal nanowire, which comprises the step of reducing a nanofiber comprising a metal complex peptide lipid formed from the two-headed peptide lipid represented by the general formula (I): , in which Val is a valine residue, m is 1-3 and n is 6-18, and a metal ion, using 5-10 equivalents of a reducing agent relative to the two-headed peptide lipid. It further provides a metal nanowire having an average diameter of 10-20 nm and average length of 1 mum or more. It is preferred that the metal is copper.

The present invention provides metal nanowires including at least silver, and a metal other than silver, wherein the metal other than silver has a standard electrode potential more positive than the standard electrode potential of silver, and the metal nanowires have a long-axis length of 1 μm or more and a short-axis length of 300 nm or less.

The invention discloses a flexible all-solid transparent supercapacitor with a sandwich structure and a preparation method thereof. The supercapacitor adopts a flexible transparent conductive thin film as an electrode and ionic gel as an electrolyte, wherein the conductive thin film is a flexible substrate/metal nanowires/a conductive polymer; the flexible substrate is PET, the metal nanowires areultra-long AgNWs, and the conductive polymer is PEDOT:PSS. The method includes the following steps: spin coating AgNWs dispersion liquid and the doped PEDOT:PSS on the PET to prepare flexible transparent composite electrodes; and then adding the electrolyte to the two pieces of composite electrodes, and performing relative compression to prepare a transparent flexible supercapacitor with a sandwich structure. The flexible all-solid transparent supercapacitor prepared by the invention has good transparency, flexibility and electrochemical performance, has a huge potential to be used in show windows to power buildings, and can also be used for clothes and handbags to charge electronic equipment.

Provided is a transparent conductive film wherein an electrically conductive region is converted to an electrically insulating region more readily and rapidly than traditional conductive films and the level difference between the electrically conductive region and the electrically insulating region is smaller. The transparent conductive film has an electrically conductive region 4 and an electrically insulating region 5. The electrically conductive region 4 contains a resin component 10, a metal nanowire 2 and an insulation-promoting component 3. The insulation-promoting component 3 has a light absorption higher than that of the metal nanowire 2. The electrically insulating region 5 is defined by a region which contains a resin component 10 but not the metal nanowire 2 or a region which contains a resin component 10 and additionally a metal nanowire 2 having an aspect ratio of smaller than that of the metal nanowire 2.

Embodiments of the present invention relate generally to the field of tissue repair and regeneration. More specifically, embodiments of the present invention relate to medical devices, materials or constructs, such as conductive biocompatible polymers having one or more networks of metal nanowires that enhance tissue repair and regeneration using electromagnetic fields.

The present invention relates to a method for manufacturing a nanowire of a core-shell structure including a metal nanowire core and a graphene shell, comprising the steps of: providing a metal nanowire; and coating the metal nanowire with graphene by a plasma chemical vapor deposition method. In addition, the present invention relates to: a nanowire having a core-shell structure including a metal nanowire core and a graphene shell; and a transparent electrode formed from the nanowire. The transparent electrode formed from the nanowire having a core-shell structure has advantages of having controllable copper oxidation characteristics, being optically, electrically and mechanically excellent, and enabling the transparent electrode to be manufactured at a low cost.

A composite carbon nanotube/ferromagnetic metal nanowire material is composed of carbon nanotubes and ferromagentic metal nanowires filled in said nanotubes, and is prepared through growing carbon nanotubes while filling said nanowires in the nanotubes, and crystallizing said nanowires. If said material is dispersed in the epoxy resin/alcohol solution and then solidified, a microwave absorption material or an electromagnetic shielding material is obtained.

The present invention relates to a preparation method, structure characteristics and applications of a metal nanowire network/mesoporous silica core-shell structure catalyst. The preparation method comprises: dissolving a surfactant in a hydrophobic solvent, adding a metal salt aqueous solution and a reducing agent, finally adding an orthosilicate compound, transferring to a stainless steel reaction kettle to crystallize, and carrying out washing, drying and calcining to obtain the metal nanowire network/mesoporous silica core-shell structure catalyst. With the preparation method of the present invention, the metal nanowire network catalyst having different metal composition and different mesoporous silica thicknesses can be obtained, the method has characteristics of simple operation, rapid reaction, easy surfactant removing, good stability, and easy synthesis amplifying, and the prepared nanometer catalyst can be used for the fields of petrochemical industry, pollution control, fuel cells and the like.

A method for manufacturing a nanowire is provided. A solvent is heated. A catalyst is added to the solvent. A metal compound is added to the solvent to form a metal nanowire. The metal nanowire is refined. In the refining of the metal nanowire, the catalyst and a refinement material to converting an insoluble material generated by the catalyst into a soluble material may be added to the solvent. The catalyst may include NaCl and at least one selected from the group consisting of Mg, K, Zn, Fe, se, Mn, P, Br and I.

Compositions are provided comprising aqueous dispersions of polythiophenes and colloid-forming polymeric acids. Films from invention compositions are useful as buffer layers in organic electronic devices, including electroluminescent devices, such as, for example, organic light emitting diodes (OLED) displays in combination with metal nanowires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.