Stretching a Crystal to Catch Sunlight (IMAGE) Stanford University School of Engineering Caption This colorized image shows an ultra thin layer of semiconductor material stretched over the peaks and valleys of part of a device the size of a pinkie nail. Just three atoms thick, this semiconductor layer is stretched in ways enhance its electronic potential to catch solar energy. The image is enlarged 100,000 times. Credit Hong Li, Stanford Engineering Usage Restrictions With attribution 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.