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Nanoscale High-Aspect-Ratio Metallic Structure and Method of Manufacturing Same

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Nanoscale high-aspect-ratio metallic structures and methods are presented. Such structures may form transparent electrode to enhance the performance of solar cells and light-emitting diodes. These structures can be used as infrared control filters because they reflect high amounts of infrared radiation. A grating structure of polymeric bars affixed to a transparent substrate is used. The sides of the bars are coated with metal forming nanowires. Electrodes may be configured to couple to a subset of the rails forming interdigitated electrodes. Encapsulation is used to improve transparency and transparency at high angles. The structure may be inverted to facilitate fabrication of a solar cell or other device on the back-side of the structure. Multiple layered electrodes having an active layer sandwiched between two conductive layers may be used. Layered electro-active layers may be used to form a smart window where the structure is encapsulated between glass to modify the incoming light.
Kuang, Ping (Troy, NY), Park, Joong-Mok (Ames, IA), Leung, Wai (Ames, IA), Ho, Kai-Ming (Ames, IA), Constant, Kristen P. (Ames, IA), Chaudhary, Sumit (Ames, IA)
13/ 274,383
October 17, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0002] This invention was made in part with Government support under Grant Numbers DE-ACO2-07CH11358 awarded by the Department of Energy. The Government has certain rights in this invention.