Jairo Velasco Jr. and Zhehao Ge in lab (IMAGE) University of California - Santa Cruz Caption Physicist Jairo Velasco Jr. (left) and graduate student Zhehao Ge in Velasco’s lab at UC Santa Cruz. Behind them is the scanning tunneling microscope (STM) they use to create and study graphene quantum dots. Credit Photo by Tianhui Zhu Usage Restrictions For use only with news coverage of this research License Original 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.