1. Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, USA
2. Linde Nanomaterials, Linde LLC, 1970 Diamond Street, San Marcos, California 92078, USA
3. Polyera Corporation, 8045 Lamon Avenue, Skokie, Illinois 60077, USA
4. Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia