The novel light conversion system includes photosensitive optoelectronic devices, or photovoltaic cells, that convert electromagnetic radiation into electrical currents without applying an external voltage. Power conversion efficiency is a primary criterion for evaluating the performance of photovoltaic cells. Photovoltaic cells with high power-conversion efficiencies are more cost effective and more suitable replacements for conventional energy sources. This novel light conversion system uses a polycrystalline organic material with unique material properties for achieving high, power-conversion efficiencies.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
 This material is based upon work supported in part by the STC Program of the National Science Foundation under Agreement Number DMR-0120967, by the Office of Naval Research (Contract Number N00014-04-1-0120), by the National Renewable Energy Laboratory, and by an NSF CAREER program. The government has certain rights in this invention.