1. Department of Materials Science and Engineering
2. Research Institute of Advanced Materials (RIAM)
3. Seoul National University
4. Seoul 151-742
5. Republic of Korea
6. Korea Advanced Institute of Science and Technology (KAIST)
7. 291 Daejeon 34141
8. Center for Nanoparticle Research
9. Institute for Basic Science (IBS)
10. Gwanak-gu