TENG Devices (IMAGE) Georgia Institute of Technology Caption More than 60 research groups worldwide are now developing variations of the triboelectric nanogenerator. Shown in this image is a collection of the devices. Credit Credit: Rob Felt, Georgia Tech Usage Restrictions None 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.