Solar cell structure with localized doping in cap layer

Details Solar cell structure with localized doping in cap layer Solar cell structure with localized doping in cap layer

2006-10-19

2010-11-30

Lin, Kuang Y (Department: 1793)

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

Reexamination Certificate

active

07842881

ABSTRACT:
A solar cell includes a semiconductor substrate and a sequence of semiconductor layers disposed over the substrate. The sequence of semiconductor layers includes a semiconductor window layer. The solar cell also includes a semiconductor silicon-containing cap layer over the window layer. The cap layer is spatially separated from the window layer by a semiconductor barrier layer that either includes no silicon or has a silicon concentration that is significantly lower than the silicon concentration of the cap layer.

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