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Solar cell with silicon oxynitride dielectric layer

United States Patent

April 28, 2015
View the Complete Patent at the US Patent & Trademark Office
Solar cells with silicon oxynitride dielectric layers and methods of forming silicon oxynitride dielectric layers for solar cell fabrication are described. For example, an emitter region of a solar cell includes a portion of a substrate having a back surface opposite a light receiving surface. A silicon oxynitride (SiO.sub.xN.sub.y, 0<x, y) dielectric layer is disposed on the back surface of the portion of the substrate. A semiconductor layer is disposed on the silicon oxynitride dielectric layer.
Shepherd; Michael (San Jose, CA), Smith; David D. (Campbell, CA)
SunPower Corporation (San Jose, CA)
13/ 720,417
December 19, 2012
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.