How Solar Cells Cool Themselves (IMAGE) Optica Caption This drawing demonstrates how solar cells cool themselves by shepherding away unwanted thermal radiation. The pyramid structures made of silica glass provide maximal radiative cooling capability. Credit Credit: L. Zhu, Stanford University. Usage Restrictions Include caption & credit 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.