Technology Review writes:
Plastic solar cells can’t yet compete with conventional silicon photovoltaics for efficiently producing large-scale power. But they’ve become good enough that at least one company, Lowell, MA-based Konarka, has moved past the proof-of-concept phase and is putting them into products.
Konarka’s solar cells are printed or coated on rolls of plastic — much like photographic film. Tiny particles embedded in the film then absorb light and spit out electrons, which are transported by an electrolyte and harvested by electrodes.