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High throughput parallel backside contacting and periodic texturing for high-efficiency solar cells

United States Patent

August 19, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Disclosed are configurations of long-range ordered features of solar cell materials, and methods for forming same. Some features include electrical access openings through a backing layer to a photovoltaic material in the solar cell. Some features include textured features disposed adjacent a surface of a solar cell material. Typically the long-range ordered features are formed by ablating the solar cell material with a laser interference pattern from at least two laser beams.
Daniel; Claus (Knoxville, TN), Blue; Craig A. (Knoxville, TN), Ott; Ronald D. (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN)
12/ 981,899
December 30, 2010
GOVERNMENT RIGHTS This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.