Heatsink Assembly for Smartphone (IMAGE) University of Washington Caption The UW team's prototype heatsink assembly, which can be attached to the back of a smartphone, consists of a photovoltaic cell (silver square, top) attached to a thermoelectric generator (in white). The generator is mounted on top of an aluminum heatsink. The entire assembly is only 8mm thick and 40mm wide. Credit Mark Stone/University of Washington Usage Restrictions Must include 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.