1. Department of Materials Science and Engineering
2. Optoelectronics Convergence Research Center
3. Chonnam National University
4. Gwangju 61186
5. Republic of Korea
6. Photo-electronic Hybrids Research Center
7. Korea Institute of Science and Technology (KIST)
8. Seoul 02792
9. Division of Nano and Information Technology
10. Department of Mechanical and Aerospace Engineering
11. Seoul National University
12. Seoul 08826
13. Global Frontier Center for Multiscale Energy Systems
14. Institute of Engineering Research