LOW SHADING LOSS SOLAR MODULE

摘要

A solar cell comprises an optically transparent handle, wherein the handle includes grooves into which tabs are inserted, enabling the use of high aspect ratio tabs with minimal shading of the front side of the solar cell. Electrical connection of the tabs to busbars on the surface of the layers of the solar cell is through apertures at the bottom of each groove on the handle—the grooves being aligned to the busbars. The apertures may be filled with solder, metal pins, metal spheres, etc, and in embodiments the tabs may be metal wires. The solar cells with optically transparent handles may be formed into solar cell modules. Furthermore, in embodiments the handle with integral tabs simplifies and reduces the cost of solar cell and module fabrication since the top surface of the transparent handle including tabs may be completely flat.

主权项

1. A solar cell structure comprising:
solar cell layers with busbars on the surface of said solar cell layers; a first layer of bonding material over the surface of said solar cell layers and over the surface of said busbars on said surface of said solar cell layers; an optically transparent handle with grooves for tabs and apertures at the bottom of said grooves, wherein said grooves in said optically transparent handle are aligned with said busbars of said first structure and said apertures in said optically transparent handle are aligned with said openings in said first layer of bonding material, wherein said first layer of bonding material attaches said optically transparent handle to said solar cell layers, and wherein said first layer of bonding material has openings to match said apertures in said optically transparent handle; electrical contact materials in said apertures in said optically transparent handle, said electrical contact materials making electrical contact between corresponding electrical contact materials and busbars; and tabs in said grooves, said tabs making electrical contact between corresponding electrical contact materials and tabs.