Tungsten Diselinide Thin Film (IMAGE) Ecole Polytechnique Fédérale de Lausanne Caption This is a photograph of a single-flake-layer WSe2 thin film deposited on flexible Sn:In2O3 (ITO)-coated PET plastic. Credit Kevin Sivula (EPFL) Usage Restrictions Image appears on the paper published in <i>Nature Communications</i> under a <a target="_blank"href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a> 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.