Abstract:
Systems and methods for preparing inorganic-organic interfaces using organo-transition metal complexes and self-assembled monolayers as organic surfaces. In one embodiment, a silicon wafer is cleaned and reacted with stabilized pirhana etch to provide an oxide surface. The surface is reacted with the trichlorosilyl end of alkyltrichlorosilanes to prepare self assembling monomers (SAMs). The alkyltrichlorosilanes have the general formula R1-R—SiCl3, where R1 is —OH, —NH2, —COOH, —SH, COOCH3, —CN, and R is a conjugated hydrocarbon, such as (CH2)n where n is in the range of 3 to 18. The functionalized end of the SAM can optionally modified chemically as appropriate, and is then reacted with metal-bearing species such as tetrakis(dimethylamido)titanium, Ti[N(CH3)2]4, (TDMAT) to provide a titanium nitride layer.
Abstract:
A new method of making self-assembled nanoparticle wires involves: (1) at about ambient temperature and at or near atmospheric pressure, immersing a hydrophilic solid substrate at a non-horizontal angle (e.g., vertically) into a suspension of nanoparticles in a solvent, the suspension having a negative meniscus, the immersion forming a solid-liquid-air interface at the meniscus of the suspension; (2) gradually exposing the immersed substrate to air by gradually removing (preferably evaporating) the suspension, thereby causing deposition of the nanoparticles at a first location on the substrate at the meniscus, thereby forming a first nanoparticle wire on the substrate; (3) after a first deposition time period, rapidly removing a portion of the suspension, thereby causing deposition to stop and then re-start at a second location on the substrate at the meniscus; (4) continuing to gradually expose the immersed substrate to air by gradually removing the suspension for a second deposition period, thereby forming a second nanoparticle wire on the substrate; and optionally (5) repeating steps (3) and (4) one or more times to form one or more successive nanoparticle wires on the substrate. The above method can also be used to form integrated nanoparticle wire arrays.
Abstract:
An object of the present invention is to provide a method for producing an organic thin film, which enables rapid film formation, and enables a dense organic thin film with minimal impurities to be formed stably, and in a plurality of consecutive repetitions.The present invention provides a method for producing an organic thin film in which an organic thin film is formed on the surface of a substrate, including a step (A) of bringing the substrate into contact with an organic solvent solution containing a metal-based surfactant having at least one hydrolyzable group, and a catalyst capable of interacting with the metal-based surfactant, wherein the water content within the organic solvent solution is either set or maintained within a predetermined range.
Abstract:
The present invention relates to light-reflection coating composition, characterized in that transparent particles having surfaces covered with a water-repellent and oil-repellent coating film are dispersed in the coating composition. Furthermore, there is provided, using the coating composition, a water-repellent, oil-repellent, and soil-resistant light-reflection coat, wherein the transparent particles covered with a water-repellent, oil-repellent, and soil-resistant coating film.
Abstract:
A method for selectively orienting molecules on a surface of a solid support. The method includes the steps of: (a) attaching a linker molecule to the surface of the solid support, the linker molecule including a head group that is capable of binding to the solid support, and a tail group that is capable of chelating to a metal ion; (b) subsequently treating the solid support with a solution containing the metal ion; (c) attaching a metal ion chelating tag to the molecules to form tagged molecules; and (d) capturing the tagged molecules on the solid support by contacting it with the tagged molecules to form a monolayer of molecules on the surface of the solid support in which a majority of the molecules are held in the same orientation with respect to the surface. The invention also provides a sensor chip formed using the methods of the invention.
Abstract:
The compound is a silane surface treatment agent and is useful for modifying the surfaces of silicon oxide and other metal oxides with hexafluorodimethyl carbinol functional groups. Additionally provided is a surface treatment procedure that effectively bonds it and other alkoxysilanes via homogeneous and heterogeneous amine catalysis onto metal oxide surfaces.
Abstract:
A coating structure includes a UV-cured resin layer and a fluoride monomolecular layer. Organosilicon groups of organosilicon molecules extend from the surface of the resin layer. Wax fine powder and oxide nanoparticles emerge from the surface of the resin layer to form mountain-valley-like microstructures. Fluoride molecules of the fluoride monomolecular layer are chemically bonded with the surface of the resin layer to expose the fluoride groups. During the formation of the coating structure, the UV-curable resin layer is first partially cured, then the fluoride molecules are activated to chemically bond to the surface of the resin layer, and thereafter, the UV-curable resin layer is completely cured.
Abstract:
In one aspect, a method of nanolithography is provided, the method comprising providing a substrate; providing a scanning probe microscope tip; coating the tip with a deposition compound; and subjecting said coated tip to a driving force to deliver said deposition compound to said substrate so as to produce a desired pattern. Another aspect of the invention provides a tip for use in nanolithography having an internal cavity and an aperture restricting movement of a deposition compound from the tip to the substrate. The rate and extent of movement of the deposition compound through the aperture is controlled by a driving force.
Abstract:
The method of applying a polyelectrolyte multilayer film for corrosion control involves chemical and/or electrochemical pretreatment of a metallic substrate for better adherence of the protective film to the substrate. The method includes anodically polarizing the substrate in a solution of an acid for a period from one second to five hundred seconds before multilayer deposition. The acid may be an inorganic acid, such as sulfuric acid, phosphoric acid, hydrochloric acid, nitric acid, etc., or an organic acid, such as oxalic acid, acetic acid, etc. The method may include abrading the substrate and rinsing the substrate with deionized water before polarizing the substrate, and applying the polyelectrolyte multilayers following pretreatment.
Abstract:
The invention relates to a novel metal mold having anti-adhesive properties comprising a base metal mold and an anti-adhesive layer comprising a fluorinated alkyl phosphoric acid derivative or a fluorinated alkyl poly-phosphoric acid derivative, including a phosphorous atom and an alkyl chain. The anti-adhesive layer is bonded directly onto a surface of the base metal mold. The base metal mold may be e.g. Nickel, and said fluorinated alkyl phosphoric acid derivative or said fluorinated alkyl poly-phosphoric acid derivative may be selected from the group consisting of phosphonic acids, phosphonic acids, phosphonates and phosphonate salts, phosphonates and phosphonate salts, or their respective oligomers, such that the phosphorous atom is coupled directly to the alkyl chain, such that the phosphorous atom is coupled directly to the alkyl chain.