1. School of Electrical and Electronics Engineering
2. Chung-Ang University
3. Seoul 06974
4. Korea
5. School of Advanced Materials Science and Engineering and SKKU Advanced Institute of Nanotechnology (SAINT)
6. Sungkyunkwan University
7. Suwon
8. Center for Opto-Electronic Materials and Devices
9. Post-Silicon Semiconductor Institute
10. Korea Institute of Science and Technology (KIST)
11. Seoul
12. Department of Chemistry
13. Department of Electrical and Computer Engineering
14. University of Utah
15. Salt Lake City
16. USA