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TUNING THE ANTI-REFLECTIVE, ABRASION RESISTANCE, ANTI-SOILING AND SELF-CLEANING PROPERTIES OF TRANSPARENT COATINGS FOR DIFFERENT GLASS SUBSTRATES AND SOLAR CELLS

United States Patent Application

20140261615
A1
View the Complete Application at the US Patent & Trademark Office
Functionalized coatings preferentially coated on the tin-side of float glass used in solar and other applications are disclosed. Coating compositions include silane-based precursors that are used to form coatings through a sol-gel process including hydrolyzed alkoxysilane-based sols. The coatings are characterized by anti-reflective, abrasion resistant, and anti-soiling properties and the tunability of those properties with respect to different applications. The coatings formed from the compositions described herein have wide application, including, for example, use as abrasion resistant coatings on the outer glass of solar modules, wherein the coating adheres through siloxane linkages. In some embodiments, when applied to glass and cured at a temperature of less than 300.degree. C., the dried sol gel has abrasion resistance sufficient to pass standard EN-1096-2 with a loss of transmission of no more than 0.5% and enables a post-test light transmission gain of greater than 1% as compared to uncoated glass.
Nair, Vinod (San Jose, CA), Brophy, Brenor L. (San Jose, CA)
Enki Technology, Inc. (San Jose CA)
14/ 203,368
March 10, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under Contract DE-EE0006040 awarded by the U.S. Department of Energy. The government has certain rights in the invention.