Skip to Content
Find More Like This
Return to Search

Hypertransparent Nanostructured Superhydrophobic and Surface Modification Coatings

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Hydrophobic and self-cleaning surfaces have wide applications, including glasses, camera covers, windows, solar panels and high-end finished surfaces. Many existing hydrophobic coatings either have low transmittance, making them unsuitable for high light transmission applications, or are insufficiently hydrophobic. The present invention concerns high-quality hypertransparent superhydrophobic coatings, for example SiO.sub.2-based, with double-roughness microstructure that were deposited on to, for example, glass substrates using, for example, the combustion chemical vapor deposition (CCVD) technique. Embodiments of the invention include coatings with a contact angle of higher than, a rolling angle of <, a haze of <0.5%, and an increased transmittance by 2% higher and a reflectance of 2% lower than bare glass. The double roughness can improve wear resistance. Additionally, other surface chemistries can be applied to yield hydrophilic, oliophobic, or oliophobic surfaces.
Jiang, Yongdong (Norcross, GA), Hunt, Andrew Tye (Atlanta, GA), Smalley, Jeanne Y. (Riverdale, GA), Harris, Holly E. (Fairburn, GA)
nGimat Co. (Atlanta GA)
12/ 474,242
May 28, 2009
STATEMENT OF FEDERAL SUPPORT [0002] This work was supported by the Department of Energy (DOE), through Grant No. DE-FG02-04ER84007. The United States Government has certain rights in the invention.