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US 4,359,487 AGranted
Method for applying an anti-reflection coating to a solar cell
AssigneeExxon Research & Engineering Co.
InventorMichael Schneider
Life of this patent
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Abstract
The present invention teaches a method for applying an anti-reflection coating to solar cells whereby the coating is interdispersed among the cell's electrodes on the cell's junction surface. The method includes coating the solar cell's surface with an anti-reflection layer, selectively etching a pattern through the anti-reflection layer, which corresponds to the desired electrode pattern and electrolessly plating a layer of nickel onto the cell's surface.
Claims16
A method for applying an anti-reflective coating and an electrode pattern to a solar cell surface, said method comprising:
- coating at least said surface with an anti-reflection layer;
- masking a portion of said coated surface to form an electrode pattern in at least a portion of said surface which remains unmasked;
- etching said coating in the unmasked portion of said surface to remove said anti-reflection layer;
- sensitizing at least said etched region of said solar cell surface;
- electrolessly plating a layer comprising nickel onto at least said sensitized region of said solar cell surface;
- removing said masking from said solar cell surface whereby said nickel layer remains only in said electrode pattern;
- coating said nickel layer with a layer of electrically conducting material.
4 more elements
Dependencies are inferred from the claim text.