Photovoltaic devices with electroplated metal grids
First Claim
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1. A solar cell, comprising:
- a photovoltaic structure; and
a first metallic grid positioned on a first side of the photovoltaic structure, wherein the first metallic grid includes one or more finger lines, wherein ends of a first finger line are coupled to corresponding ends of an adjacent finger line via two metal lines, wherein the first finger line, the adjacent finger line, and the metal lines form a loop.
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Abstract
One embodiment of the present invention provides a solar cell. The solar cell includes a photovoltaic structure and a front-side metal grid situated above the photovoltaic structure. The front-side metal grid also includes one or more electroplated metal layers. The front-side metal grid includes one or more finger lines, and each end of a respective finger line is coupled to a corresponding end of an adjacent finger line via an additional metal line, thus ensuring that the respective finger line has no open end.
285 Citations
18 Claims
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1. A solar cell, comprising:
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a photovoltaic structure; and a first metallic grid positioned on a first side of the photovoltaic structure, wherein the first metallic grid includes one or more finger lines, wherein ends of a first finger line are coupled to corresponding ends of an adjacent finger line via two metal lines, wherein the first finger line, the adjacent finger line, and the metal lines form a loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 17)
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12. A metallic grid for collecting current from a photovoltaic structure, comprising:
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a first finger line positioned on a first surface of the photovoltaic structure; a second finger line positioned on the first surface of the photovoltaic structure, wherein the second finger line is substantially parallel to the first finger line; and short metal lines connecting ends of the first finger line to corresponding ends of the second finger line, wherein the first finger line, the second finger line, and the short metal lines form a loop. - View Dependent Claims (13, 14, 15, 16, 18)
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Specification