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US 4,378,460 AGranted
Metal electrode for amorphous silicon solar cells
AssigneeRCA Corporation
InventorRichard Williams
Life of this patent
Estimating the term…
Abstract
An amorphous silicon solar cell having an N-type region wherein the contact to the N-type region is composed of a material having a work function of about 3.7 electron volts or less. Suitable materials include strontium, barium and magnesium and rare earth metals such as gadolinium and yttrium.
Claims6
A solar cell comprising:
- (a) a body of amorphous silicon;
- (b) a P type region and an N type region in said body of amorphous silicon, said P type region being separated from said N type region by an intrinsic region;
- and
- (c) means for contacting said N type region comprising a metal having a work function less than about 3.7 electron-volts.
1 more element
Dependencies are inferred from the claim text.