1. Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China
2. Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
3. School of Automation Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, Sichuan 611731, China
4. Applied Physics Program, Department of Materials Science and Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
5. Department of Materials Science and Engineering, and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
6. Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
7. Flexterra Corporation, 8025 Lamon Avenue, Skokie, Illinois 60077, United States