1. Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
2. School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
3. Samsung Advanced Institute of Technology, Samsung Electronics, Suwon-si, Gyeonggi-do 16678, Republic of Korea
4. Department of Physics Education, Seoul National University, Seoul 08826, Republic of Korea
5. Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
6. National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
7. Nanoscale Physics Research Laboratory, School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, U.K.
8. Institute of Engineering Research, College of Engineering, Seoul National University, Seoul 08826, Republic of Korea
9. Advanced Institute of Convergence Technology, Seoul National University, Suwon-si, Gyeonggi-do 16229, Republic of Korea