The U.S. Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) and Solarmer Energy, Inc. have signed a cooperative research and development agreement (CRADA) to collaborate on improving the lifetime of plastic solar cells, a promising new solar conversion technology. The joint research covered by the CRADA will explore the lifetime and stability of the organic photovoltaic (OPV) devices that make up the energy-harvesting layers of plastic solar cells. Under the terms of the...