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Photoactive compositions containing plasmon-resonating nanoparticles

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Disclosed herein are photoactive compositions that include a semiconductor and plasmon-resonating nanoparticles that are capable of concentrating light at a wavelength that is substantially the same as the wavelength of light necessary to promote an electron from a valance band to a conduction band in the semiconductor. As such, the plasmon-resonating nanoparticles direct light to the band gap of the semiconductor at an increased intensity (relative to when such nanoparticles are not present). And because of that increased intensity, the photoactive composition can be more efficiently used to catalyze a photochemical reaction or generate electrical potential in a photovoltaic cell.
Linic, Suljo (Ann Arbor, MI), Christopher, Phillip N. (Ann Arbor, MI), Ingram, David B. (Ann Arbor, MI)
The Regents of the University of Michigan (Ann Arbor MI)
12/ 800,294
May 12, 2010
STATEMENT OF GOVERNMENTAL INTEREST [0002] This invention was made with governmental support under grants from the U.S. Department of Energy, Office of Basic Energy Sciences (DOE-BES) and Division of Chemical Science (FG-02-05ER15686), and the National Science Foundation (CBET0756255). The government has certain rights in the invention.