Multi-layer anti-reflective coatings and processes therefor
AssigneeGuardian Industries Corp.
InventorDesaraju V. Varaprasad
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Abstract
Methods for making multi-layered anti-reflective coatings are disclosed. Un-solgel precursor compositions may be prepared having inorganic oxide precursors and UV curable acrylic monomer mixtures, deposited on a substrate, and subsequently the coated substrate may be cured by exposure to electromagnetic radiation, such as UV radiation. The coating layers may be heated using a temperature sufficient to burn off organic content and form a multi-layer anti-reflective coating. Substrates comprising such coatings and photovoltaic devices comprising such substrates and coatings are also disclosed.
Claims12
A method of making a multi-layer anti-reflective coating, comprising:
- preparing at least two un-solgel precursor compositions, wherein each of said at least two un-solgel precursor compositions comprises at least one inorganic oxide precursor and at least one UV curable monomer;
- depositing a first coating layer of one of said un-solgel precursor compositions on a substrate;
- curing said first coating layer by exposing said first coating layer to electromagnetic radiation;
- depositing at least one additional coating layer of one of said un-solgel precursor compositions on said first cured coating layer;
- curing said at least one additional coating layer by exposing said at least one additional coating layer to electromagnetic radiation;
- and
- heating said cured coating layers to remove substantially all organic content and form a multi-layer anti-reflective coating.
Dependencies are inferred from the claim text.