11results about "Electroforming nanostructures" patented technology

A hyperbolic metamaterial is provided. The hyperbolic metamaterial includes a substrate and sub-wavelength nanostructures arrayed on the substrate. Each sub-wavelength nanostructure has a decreasing cross-sectional area with increasing height from the substrate and includes dielectric or semi-metallic material layers and metal-insulator transition (MIT) material layers respectively interleaved with the dielectric or semi-metallic material layers. Each MIT material layer and each dielectric or semi-metallic material layer of each sub- wavelength nanostructure has a cross-sectional shape characterized in that current is induced in one or both of the dielectric or semi-metallic material layers and the MIT material layers by exposure to a magnetic field.

The invention relates to a method of providing a plurality of nanowires (14) on a surface (15), comprising: a) providing an electrolyte dispenser (1); b) providing a foil (16) having a plurality of continuous holes (17); c) arranging the foil (16) between the surface (15) and an outlet side (4) of the electrolyte dispenser (1); d) introducing a liquid electrolyte into the electrolyte dispenser (1) such that the liquid electrolyte is deposited onto the foil (16) at the outlet side (4) of the electrolyte dispenser (1); and e) applying a voltage between the liquid electrolyte and the surface (15) such that the nanowires (14) grow from the liquid electrolyte in the holes (17) of the foil (16) onto the surface (15).

A method of electroplating nanograined copper on a substrate includes: providing the substrate; providing an electroplating bath that includes a copper salt, an acid, a leveler, a chlorine compound, an accelerator, a suppressor; and water; and electroplating the substrate in the electroplating bath to form the nanograined copper at room temperature. The suppressor is a ployether polyol compound, the nanograined copper has an average grain size of about 100 nm, and the nanograined copper has a resistivity of about 1.78-1.90 μOhm·cm. A nanograined copper prepared according to the method is also disclosed.

This invention relates to a femtosecond laser deposition probe and a micro / nano localized deposition device based on a femtosecond laser, which relates to the field of nanofabrication, specifically to the field of surface metallization process equipment technology and the field of probe technology used in this process. It solves the problems of existing probes being unable to simultaneously excite electrochemical reactions and conduct laser light, and the high optical path transmission loss in existing deposition devices. The probe comprises multiple parallel single-mode silica optical fibers, each fiber having a tapered end and its outer surface covered with a metal layer. The laser emitted by the femtosecond laser transmission system in the deposition device is guided by the fiber probe (301) to the surface metallization processing area within the movable reaction pool system (4), and the end of the fiber probe (301) also serves as the working electrode for the chemical reaction within the movable reaction pool system (4). The femtosecond laser deposition probe is suitable for systems combining laser and chemical reactions.

Method for producing a plurality of nanowires (1) on an electrically conductive surface (2), comprising: a) applying a masking layer (3) to the surface (2), wherein the masking layer (3) has multiple recesses (4) in which the surface (2) is uncovered by the masking layer (3), b) applying a respective foil piece (5) to the surface (2) in each of the recesses (4), wherein the foil pieces (5) each have a plurality of pores (6) extending continuously over a thickness (dF) of the respective foil piece (5), c) growing the nanowires (1) onto the surface (2) into the pores (6) of the foil pieces (5).

Disclosed herein is a method for fabricating a nanowire array on an uneven or curved surface. A pliable, porous scaffold is used to hold a liquid electrolyte, creating s semi-solid electrolyte that is used to transfer pressure to a template disposed on the target surface to cause the template to conform to and bond with the target surface to substantially eliminate the gap therebetween, such that a robust and controllable growth of the nanowire array can be realized.

The invention discloses a femtosecond laser plating probe and a micro-nano localized deposition device based on femtosecond laser, and relates to the field of nano manufacturing, in particular to the technical field of surface metallization process equipment and the technical field of probes used in the process. The problems that an existing probe cannot excite electrochemical reaction and conduct laser at the same time, and an existing deposition device is large in light path conduction loss are solved. The probe comprises a plurality of parallel single-mode quartz optical fibers, the tail end of each optical fiber is conical, and the outer surface of each optical fiber is covered with a metal layer. Laser emitted by a femtosecond laser transmission system in the deposition device is guided to a surface metallization processing area in a movable reaction tank system (4) through an optical fiber probe (301), and the tail end of the optical fiber probe (301) also serves as a working electrode for chemical reaction in the movable reaction tank system (4). The femtosecond laser plating probe is suitable for a laser and chemical reaction combined system.

This invention provides a fine metal wire with a lower sintering temperature than previously possible. The fine metal wire has a length of 0.5 μm or more and 200 μm or less, and a thickness of 30 nm or more and 10 μm or less. When the length of the metal crystal constituting the fine metal wire along the extension direction of the fine metal wire is defined as X, and the length along a direction orthogonal to the extension direction is defined as Y, at three boundary regions where the length of the fine metal wire is divided into four equal parts along its extension direction, the ratio of X to Y, i.e., X / Y, is 4 or less.

A hyperbolic metamaterial is provided. The hyperbolic metamaterial includes a substrate and sub-wavelength nanostructures arrayed on the substrate. Each sub-wavelength nanostructure has a decreasing cross-sectional area with increasing height from the substrate and includes dielectric or semi-metallic material layers and metal-insulator transition (MIT) material layers respectively interleaved with the dielectric or semi-metallic material layers. Each MIT material layer and each dielectric or semi-metallic material layer of each sub-wavelength nanostructure has a cross-sectional shape characterized in that current is induced in one or both of the dielectric or semi-metallic material layers and the MIT material layers by exposure to a magnetic field.

A method for manufacturing a nanowire array on a surface having irregularities or a curved surface is disclosed herein. A flexible porous scaffold is used to hold a liquid electrolyte and create a semi-solid electrolyte that is used to transfer pressure to a template placed on a target surface. By aligning and adhering the template to the target surface to substantially remove the voids therebetween, robust and controllable growth of the nanowire array can be achieved.

A low cost and highly controllable roll-to-roll templated deposition method for manufacturing nanostructured thin films, comprising: creating a stack structure, the stacked structure comprises a conductive substrate, a porous template arranged on the substrate, an ion conducting layer which is arranged on the template and is formed by a porous bracket containing electrolyte or polymer gel, and an anode arranged on the ion conducting layer, providing a roll on the anode; applying pressure to the stacking structure through the roller, so that the first porous template is attached to the substrate and remains attached to the substrate; applying a galvanic potential between the metal anode and the conductive substrate to grow nanostructures from the substrate into the porous template by electrochemical deposition; and removing the porous template by chemical dissolution or chemical etching to obtain the nanostructure film. A tubular roll radially including a tube, an electrolyte, and an anode may replace the roll, the electrolyte, and the anode. The nanostructure films can also grow on the two sides of the substrate.