Substrate, notably of glass, carrying a titanium oxide based photocatalytic coating with a sub-layer assisting crystallisation by hetero-epitaxial growth for household appliance, vehicle and building glazing applications

摘要

A structure comprises a substrate carrying, on at least a part of its surface, a titanium oxide (TiO 2) based layer with anti-stain photocatalytic properties. The TiO 2 is at least in part crystallised in the form of anatase. It incorporates, immediately beneath the TiO 2 layer, a sub-layer with a crystallographic structure allowing an assistance to crystallisation by hetero-epitaxial growth in the form of anatase of the upper layer of the TiO 2 base, the photocatalytic property having been acquired without any heating stage. Independent claims are also included for: (a) the fabrication of this structure; (b) a single or multiple glazing incorporating this structure.