Fabrication of photochromic device
AssigneeInstitutt for Energiteknikk
InventorsFredrik Aleksander Martinsen, José Montero Amenedo, Smagul Karazhanov, Erik Stensrud Marstein
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Abstract
Method for producing a photochromic material and a component including the photochromic material, where the method comprises the steps of:-first the formation on a substrate of a layer of an essentially oxygen free metal hydride with a predetermined thickness using a physical vapor deposition process; and -second exposing the metal hydride layer to oxygen where the oxygen reacts with the metal hydride, resulting in a material with photochromic properties.
Claims9
A method for producing a transparent photochromic oxygen-containing yttrium hydride, the method comprising:
- forming, on a substrate, a layer of an essentially oxygen-free porous yttrium-di-hydride (YH2) with a predetermined thickness using a physical vapor deposition process, where the essentially oxygen-free porous yttrium-di-hydride comprises agglomerates of grains where the size of the agglomerates is between 10 and 1000 nm;
- and
- exposing the essentially oxygen-free porous yttrium-di-hydride layer to oxygen, where the oxygen reacts with the essentially oxygen-free porous yttrium-di-hydride, resulting in the transparent photochromic oxygen-containing yttrium hydride.
Dependencies are inferred from the claim text.