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Solar cell with doped groove regions separated by ridges

United States Patent

9,559,228
January 31, 2017
View the Complete Patent at the US Patent & Trademark Office
Solar cells with doped groove regions separated by ridges and methods of fabricating solar cells are described. In an example, a solar cell includes a substrate having a surface with a plurality of grooves and ridges. A first doped region of a first conductivity type is disposed in a first of the grooves. A second doped region of a second conductivity type, opposite the first conductivity type, is disposed in a second of the grooves. The first and second grooves are separated by one of the ridges.
Molesa; Steven Edward (San Jose, CA), Pass; Thomas (San Jose, CA), Kraft; Steve (Albany, CA)
SunPower Corporation (San Jose, CA)
13/ 250,988
20130081680
September 30, 2011
The invention described herein was made with Governmental support under contract number DE-FC36-07GO17043 awarded by the United States Department of Energy. The Government may have certain rights in the invention.