Anti-reflective transparent oleophobic surfaces and methods of manufacturing thereof
AssigneesFundació Institut De CièNcies FotòNiques, Institució Catalana De Recerca I Estudis AvançAts
InventorsPrantik Mazumder, Valerio Pruneri, Juan Rombaut
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Abstract
A method for fabricating a structured surface, includes: providing a transparent substrate; disposing a dewettable film over the substrate; annealing the dewettable film to form a plurality of islands; forming a coating over the plurality of islands; and etching the plurality of islands to form a structured array of surface features in the coating. A structured polymer and/or structured glass, includes: a structured array of surface features, such that the structured array of surface features has at least one dimension in a range of 0.5 nm to 5000 nm.
Claims17
A method for fabricating a structured surface, comprising:
- providing a transparent substrate;
- disposing a dewettable film over the transparent substrate;
- annealing the dewettable film to form a plurality of islands;
- forming a coating over the plurality of islands, a thickness of the coating is less than a height of the plurality of islands to leave a portion of the plurality of islands exposed;
- etching the plurality of islands to form a structured array of surface features in the coating;
- transferring the structured array of surface features from the coating to the transparent substrate;
- and
- removing the coating from the transparent substrate.
Dependencies are inferred from the claim text.