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US 10,241,238 B2Granted
Corrosion resistant optical device
AssigneeMaterion Corporation
InventorJason I. Ridley
Life of this patent
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Abstract
A corrosion-resistant optical device is disclosed. The device includes a substrate, a silver layer upon the substrate, and an insulating layer that provides abrasion resistance. The device is immersed in a thiol-rich solution. The thiols form a corrosion-inhibiting monolayer upon any exposed silver surface. This increases the environmental resistance of the optical device, keeping water from interacting with the silver layer.
Claims15
A corrosion resistant optical device comprising:
- a substrate;
- an insulating layer;
- and
- a silver layer located between the substrate and the insulating layer;
- wherein a pinhole defect extends through the insulating layer to expose a portion of the silver layer;
- and
- a corrosion-inhibiting monolayer formed from a hydrophobic thiol of the formula R—SH, wherein R is an alkyl group containing from 1 carbon atom to 24 carbon atoms;
- wherein the corrosion-inhibiting monolayer is formed on the exposed portion of the silver layer by applying a solution containing the hydrophobic thiol to the insulating layer.
5 more elements
A method for forming a corrosion-resistant optical device, comprising:
- forming a silver layer upon the substrate;
- forming an insulating layer upon the silver layer to obtain a layered substrate;
- and
- immersing the layered substrate in a thiol-rich solution to form a corrosion-inhibiting monolayer that covers at least a portion of any pinhole defect, said pinhole defect comprising an exposed surface of the silver layer.
1 more element
Dependencies are inferred from the claim text.