Hand-held Power (image) Princeton University, Engineering School Share Print E-Mail Caption Yi Qi, a postdoctoral researcher at Princeton University, holds a piece of silicone rubber imprinted with super-thin material that generates electricity when flexed. The technology could provide a source of power for mobile and medical devices. Credit Frank Wojciechowski Usage Restrictions For non-commercial use, with credit to Frank Wojciechowski 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.