1. Beijing
Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing, 100083, People’s Republic of China
2. School
of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
3. Department
of Applied Physics, Chongqing University, Chongqing, 400044, People’s Republic of China
4. Department
of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan