Nanoscale Thin Film Solar Cell (IMAGE) Stanford University Caption This schematic diagram of a thin film organic solar cell shows the top layer, a patterned, roughened scattering layer, in green. The organic thin film layer, shown in red, is where light is trapped and electrical current is generated. The film is sandwiched between two layers that help keep light contained within the thin film. Credit Reproduced with permission from <I>Proceedings of the National Academy of Sciences</I> USA . Usage Restrictions Figures may not be used to illustrate news stories unrelated to a given PNAS article without express written permission from PNAS. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.