An optical article includes a substrate with front and rear main faces, one main face coated with a columnar micro- or nano-structured coating. The substrate and optical article are transparent in at least a part of the visible region ranging from 380 to 780 nm, along at least one incidence angle. The columnar micro- or nano-structured coating includes an array of columns including each a core and an upper layer covering the core, the core and the upper layer being structurally and/or chemically different and have light absorbing properties with an extinction coefficient k 10-2 in the spectrum 250-2500 nm and are able to cause a change in transmission or in reflection of incident light through the optical article as a function of the angle of incidence of light. Also disclosed is a method for manufacturing an optical article including a columnar micro- or nano-structured coating.

A splash screen, and a process for making a splash screen, comprising a glass sheet, the glass sheet comprising, a substrate of soda lime silica glass having a coating deposited on at least at least a first surface, the coating comprising a corrosion-protection layer deposited directly on the first surface of the substrate, the corrosion-protection layer having a thickness in the range 24 nm to 125 nm and comprising pyrolytically deposited silica with intentional doping of 7 atom % or lower. The splash screen provides reduced moisture induced corrosion of the glass surface.

A method of manufacture of a coated glazing includes the following steps in sequence a) providing a transparent glass substrate, b) etching a surface of the substrate with an acidic gas, and c) directly or indirectly coating said surface with at least one layer based on a transparent conductive coating (TCC) and/or at least one layer based on a material with a refractive index of at least 1.75.

A method of manufacture of a coated glazing includes the following steps in sequence a) providing a transparent glass substrate, b) etching a surface of the substrate with an acidic gas, and c) directly or indirectly coating said surface with at least one layer based on a transparent conductive coating (TCC) and/or at least one layer based on a material with a refractive index of at least 1.75.

Surface having properties for reducing diffuse light due to water condensation, wherein the antifog means consist in atomic aggregates adhered to and dispersed over the surface, wherein the aggregates are selected among the transition metals and the silicon. It is also related to a method for obtaining a surface having properties for reducing diffuse light due to water condensation a wavelength selected in the range from 100 nm to 50 micrometers, comprising the steps of selecting the wavelength, obtaining a glass or polymer surface that has been subjected to optical polishing and adhering to the surface atomic aggregates which are selected among the transition metals and the silicon with a separation between them being lower than or having an order of the selected wavelength selected. Thus a durable antifogging surface is obtained.

A heat treatable decorative patterned glass article ha a selectively dissolvable coating. The selectively dissolvable coating is a silicon based monolayer optical coating which is intended to be selectively dissolved in regions underlying a patterned enamel coating during a processing operation of the transparent substrate. The decorative patterned glass article provides excellent contrast to the glass when viewed from the glass side and can withstand the high tempering temperatures during the making of the decorative glass article.

A process for forming a coating on a substrate comprises forming a non-fluorinated alkyl silane hydrolysate polymer and applying the non-fluorinated alkyl silane hydrolysate polymer to a surface of the substrate. The formed invisible-fingerprint coating can have an initial oil angle less than 50.

The first object of the invention is directed to a method for modulating the number of charge carriers p in Cu.sub.xCr.sub.yO.sub.2, the method comprising the steps of (a) depositing a film of Cu.sub.xCr.sub.yO.sub.2 on a substrate; and (b) annealing at a temperature T the film of deposited Cu.sub.xCr.sub.yO.sub.2, wherein the subscripts x and y are positive numbers whose the sum is equal or inferior to 2. The method is remarkable in that the log (p)= T.sup.2+ T+, wherein the temperature T is expressed degree Celsius, wherein is a first parameter ranging from 0.00011 to 0.009, wherein is a second parameter ranging from +0.12 to +0.14, and wherein is a third parameter ranging from 27.40 to 22.42. The second object of the invention is directed to a semiconductor comprising Cu.sub.xCr.sub.yO.sub.2 deposited on a substrate and obtainable by the method in accordance with the first object of the invention.

Disclosed herein are graphene coatings characterized by a porous, three-dimensional, spherical structure having a hollow core, along with methods for forming such graphene coatings on glasses, glass-ceramics, ceramics, and crystalline materials. Such coatings can be further coated with organic or inorganic layers and are useful in chemical and electronic applications.

The present invention relates to a process for producing a coated glass substrate, the process comprising providing a glass substrate having at least one surface, the surface having deposited thereon a layer of a transparent conductive material, providing a coating composition comprising a polysilazane, contacting the surface of the transparent conductive material with the coating composition and curing the coating composition to form a coating layer on the surface of the transparent conductive material the coating layer comprising silica, and to architectural and automotive glazing comprising coated glass substrates obtained using the process.