Photocatalytic material

One subject of the invention is a material comprising a substrate coated on at least one portion of at least one of its faces with a stack comprising a photocatalytic layer, the geometrical thickness of which is between 2 and 30 nm, and at least one pair of respectively high and low refractive index...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DURANDEAU ANNE, LAURENT STEPHANE, VALENTIN EMMANUEL
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	One subject of the invention is a material comprising a substrate coated on at least one portion of at least one of its faces with a stack comprising a photocatalytic layer, the geometrical thickness of which is between 2 and 30 nm, and at least one pair of respectively high and low refractive index layers positioned underneath said photocatalytic layer so that in the or each pair, the or each high refractive index layer is closest to the substrate, said material being such that the optical thickness, for a wavelength of 350 nm, of the or each high refractive index layer, except the photocatalytic layer, is between 170 and 300 nm and the optical thickness, for a wavelength of 350 nm, of the or each low refractive index layer is between 30 and 90 nm.