Silicon oxycarbide coatings having durable hydrophilic properties
First Claim
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1. A coating having opposing first and second surfaces, where the first surface is in contact with either a solid substrate or an optional optical stack between the coating and the solid substrate, and the second surface is in contact with essentially only air at atmospheric pressure and a temperature of less than 100°
- C., whereinthe coating hasa homogeneous composition comprising a silicon oxycarbide,an index of refraction of 1.70 or more, and a thickness of 350 Å
or more; and
the second surface of the coating is hydrophilic with a contact angle with water of less than 20 degrees.
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Abstract
A silicon oxycarbide coating remains hydrophilic for a significantly longer period of time, on the order of several months, when both (i) the coating index of refraction is 1.70 or more and (ii) the coating thickness is 350 Å or more.
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Citations
21 Claims
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1. A coating having opposing first and second surfaces, where the first surface is in contact with either a solid substrate or an optional optical stack between the coating and the solid substrate, and the second surface is in contact with essentially only air at atmospheric pressure and a temperature of less than 100°
- C., wherein
the coating has a homogeneous composition comprising a silicon oxycarbide, an index of refraction of 1.70 or more, and a thickness of 350 Å
or more; andthe second surface of the coating is hydrophilic with a contact angle with water of less than 20 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- C., wherein
Specification