1. Department of Energy and Chemical Engineering
2. Incheon National University
3. Incheon 406-772, Korea
4. Department of Chemical Engineering
5. Pohang University of Science and Technology
6. Pohang 790-784, Korea
7. Department of Applied Organic Materials Engineering
8. Optoelectronic Hybrids Research Center
9. Inha University
10. Incheon, Korea
11. Massachusetts Institute of Technology
12. Cambridge, USA