Skip to Content
Find More Like This
Return to Search


United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
An electrode comprising a plurality of structured pillars dispersed across a base contact and its method of manufacture are described. In one embodiment the structured pillars are columnar structures having a circular cross-section and are dispersed across the base surface as a uniformly spaced two-dimensional array. The height, diameter, and separation of the structured pillars are preferably on the nanometer scale and, hence, electrodes comprising the pillars are identified as nanostructured pillar electrodes. The nanostructured pillars may be formed, for example, by deposition into or etching through a surface template using standard lithography processes. Structured pillar electrodes offer a number of advantages when incorporated into optoelectronic devices such as photovoltaic cells. These include improved charge collection efficiency via a reduction in the carrier transport distance and an increase in electrode-photoactive layer interface surface area. These improvements contribute to an increase in the power conversion efficiency of photovoltaic devices.
Nam, Chang-Yong (Upton, NY), Black, Charles T. (New York, NY), Gearba, Ioana R. (Austin, TX), Allen, Jonathan Edward (Medford, NY)
13/ 058,891
August 14, 2009
STATEMENT OF GOVERNMENT LICENSE RIGHTS [0002] The present invention was made with government support under Grant No. DE-AC02-98CH10886 awarded by the U.S. Department of Energy, Division of Chemical and Material Sciences. The United States government has certain rights in the invention.