Researchers at the University of Massachusetts Amherst in the US have succeeded in fabricating organic photovoltaic (OPV) devices from water-based dispersions of polymer nanoparticle spheres using an innovative technique that allows them to control component assembly at different length scales. Devices made using the new technique appear to be as good as those in terms of performance as some of the best bulk-heterojunction OPV devices on the market today…..
http://nanotechweb.org/cws/article/tech/58294