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Method of forming contacts for a back-contact solar cell

United States Patent

July 15, 2014
View the Complete Patent at the US Patent & Trademark Office
Methods of forming contacts for solar cells are described. In one embodiment, a method includes forming a silicon layer above a substrate, forming and patterning a solid-state p-type dopant source on the silicon layer, forming an n-type dopant source layer over exposed regions of the silicon layer and over a plurality of regions of the solid-state p-type dopant source, and heating the substrate to provide a plurality of n-type doped silicon regions among a plurality of p-type doped silicon regions.
Manning; Jane (Woodside, CA)
SunPower Corporation (San Jose, CA)
13/ 930,078
June 28, 2013
GOVERNMENT LICENSE RIGHTS The invention described herein was made with Governmental support under contract number DE-FC36-07G017043 awarded by the United States Department of Energy. The Government may have certain rights in the invention.