Solar cell

Details Solar cell Solar cell

2009-11-30

2010-12-14

Michener, Jennifer K (Department: 1795)

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

C136S255000, C136S258000, C136S261000, C438S097000

Reexamination Certificate

active

07851696

ABSTRACT:
The invention relates to a solar cell that comprises a planar semiconductor substrate with a front and a back; a multitude of holes that interconnect the front and the back; and current-collecting electrical contacts that are exclusively arranged on the back. The front comprises highly doped regions and lightly doped regions of a first type such that in each case the holes are situated in a highly doped region or adjoin such a region. According to a first aspect of the invention, the highly doped regions are arranged locally around the holes. According to a second aspect of the invention, the front comprises at least one region without holes, and the highly doped regions comprise one region or several regions that extends/extend to the at least one hole-free region. The invention furthermore relates to methods for manufacturing such solar cells.

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