Simplified Cross-Section of a Perovskite Solar Cell (image) Helmholtz-Zentrum Berlin für Materialien und Energie Share Print E-Mail Caption The perovskite layer does not cover the entire surface, but instead exhibits holes. The scientists could show that a protective layer is being built up which prevents short circuits. Credit HZB Usage Restrictions None Share Print E-Mail 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.