INDENTATION APPROACHES FOR FOIL-BASED METALLIZATION OF SOLAR CELLS

摘要

Indentation approaches for foil-based metallization of solar cells, and the resulting solar cells, are described. For example, a method of fabricating a solar cell includes forming a plurality of alternating N-type and P-type semiconductor regions in or above a substrate. The method also includes locating a metal foil above the alternating N-type and P-type semiconductor regions. The method also includes forming a plurality of indentations through only a portion of the metal foil, the plurality of indentations formed at regions corresponding to locations between the alternating N-type and P-type semiconductor regions. The method also includes, subsequent to forming the plurality of indentations, isolating regions of the remaining metal foil corresponding to the alternating N-type and P-type semiconductor regions.

主权项

1. A method of fabricating a solar cell, the method comprising:
forming a plurality of alternating N-type and P-type semiconductor regions in or above a substrate; locating a metal foil above the alternating N-type and P-type semiconductor regions; forming a plurality of indentations through only a portion of the metal foil, the plurality of indentations formed at regions corresponding to locations between the alternating N-type and P-type semiconductor regions; and subsequent to forming the plurality of indentations, isolating regions of the remaining metal foil corresponding to the alternating N-type and P-type semiconductor regions.