1. Graduate School of Nanoscience and Technology
2. Center for Nature-inspired Technology in KAIST Institute for the NanoCentury
3. KAIST
4. Daejeon, Republic of Korea
5. Reliability Assessment Center for Chemical Materials
6. Korea Research Institute of Chemical Technology
7. Daejeon 305-600, Republic of Korea
8. Advanced Functional Materials Research Group
9. Daejeon 305-600
10. Republic of Korea