1. Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
2. KAIST Institute for NanoCentury, Daejeon 34141, Republic of Korea
3. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
4. Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonrabuk-do 565-905, Republic of Korea
5. Department of Materials Science and Engineering, KAIST, Daejeon 34141, Republic of Korea
6. Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources, Daejeon 34132, Republic of Korea