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AMORPHOUS SILICON SOLAR CELLS

United States Patent Application

20110226330
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
The present invention provides novel strategies for mitigating the Staebler-Wronski Effect (SWE), that is, the light induced degradation in performance of photoconductivity in amorphous silicon. Materials according to the present invention include alloys or composites of amorphous silicon which affect the elasticity of the materials, amorphous silicon that has been grown on a flexed substrate, compression sandwiched comprising amorphous silicon, and amorphous silicon containing nanoscale features that allow stress to be relieved. The composites are formed with nanoparticles such as nanocrystals and nanotubes. Preferred are boron nitride nanotubes (BNNT) including those that have been surface modified.
Grossman, Jeffrey C. (Brookline, MA), Zettl, Alexander K. (Kensington, CA), Wagner, Lucas (Somerville, MA)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (Oakland CA)
13/ 058,992
August 11, 2009
STATEMENT OF GOVERNMENTAL SUPPORT [0002] This invention was made with U.S. Government support under Contract Number DE-AC02-05CH11231 between the U.S. Department of Energy and The Regents of the University of California for the management and operation of the Lawrence Berkeley National Laboratory. This invention was also made with U.S. Government support under the auspices of the National Science Foundation by the University of California Berkeley under Grant No. 0425914. The U.S. Government has certain rights in this invention.