Polymer Solar Cell (image) Eindhoven University of Technology Caption This is a 3-D electron tomography image of a polymer-metal oxide solar cell. The 3-D nanoscopic morphology shows the interpenetrating metal oxide network in (yellow) below an aluminum contact (gray) inside a polymer matrix (black). Credit Eindhoven University of Technology Usage Restrictions None 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.