Abstract:
A method of manufacturing a Zn system buffer layer using a reaction solution unlikely to become opaque white, including the steps of forming a fine particle layer of ZnS, Zn (S, O), and/or Zn (S, O, OH), mixing an aqueous solution (I) which includes a component (Z), an aqueous solution (II) which includes a component (S), and an aqueous solution (III) which includes a component (C) to obtain a mixed solution and mixing an aqueous solution (IV) which includes a component (N) in the mixed solution to prepare a reaction solution in which the concentration of the component (C) is 0.001 to 0.25M, concentration of the component (N) is 0.41 to 1.0M, and the pH before the start of reaction is 9.0 to 12.0, and, using the reaction solution, forming a Zn compound layer of Zn (S, 0) and/or Zn (S, O, OH) on the fine particle layer by a liquid phase method with a reaction temperature of 70 to 95°C.
Abstract:
The present invention provides a process for producing a transparent heat-resistant gas-barrier film capable of exhibiting a good gas-barrier property and maintaining good properties even after heat-treated at a temperature of 250°C or higher, in a simple manner at low costs without need of a large size facility and a number of steps. The process for producing a transparent heat-resistant gas-barrier film according to the present invention includes the steps of coating a polysilazane-containing solution onto at least one surface of a transparent polyimide film formed of a polyimide containing a specific repeated unit; and calcining the coated solution at a temperature of 180°C or higher to laminate a silicon oxide layer obtained by the calcination on the transparent polyimide film.
Abstract:
New ceramers, comprising aqueous suspensions of titanium oxide and/or zirconium oxide possibly in combination with other metals in the form of nanometric particles, are described.
Abstract:
The invention concerns a method for making conformable ceramic oxide layers on substrates having raised designs including: a step of depositing on said substrate a layer of sol-gel solution precursor of said ceramics; a step of heat treatment of said layer to transform same into ceramics; said steps being optionally repeated one or more times. The invention is characterized in that the sol-gel solution precursor of said ceramics is prepared by a method including the following successive steps: a) preparing a first solution by contacting one or more molecular precursors of metals designed to be constituents of the ceramics in a medium comprising a diol solvent and optionally an aliphatic monoalcohol; b) allowing the solution obtained in a) to rest during sufficient time required to obtain a solution having a substantially constant viscosity; c) diluting at a predetermined proportion the solution obtained in b) with a diol solvent optionally identical to the one in step a) or a solvent miscible with the diol solvent used in step a).
Abstract:
The invention provides a process for producing a transparent conducting film, which film comprises a doped zinc oxide wherein the dopant comprises Si, which process comprises: disposing a composition which is a liquid composition or a gel composition onto a substrate, wherein the composition comprises Zn and Si; and heating said substrate. The invention further provides transparent conducting films obtainable by the process of the invention, including transparent conducting films which comprise a doped zinc oxide wherein the dopant comprises Si, and wherein the film covers a surface area equal to or greater than 0.01 m 2 . The invention also provides a coated substrate, which substrate comprises a surface, which surface is coated with a transparent conducting film, wherein the film comprises a doped zinc oxide wherein the dopant comprises Si, and wherein the area of said surface which is coated with said film is equal to or greater than 0.01 m 2 . The invention further provides coatings comprising the films of the invention, processes for producing such films and coatings, and various uses of the films and coatings.