1. Department of Advanced Materials Engineering for Information and Electronics
2. Kyung Hee University
3. Gyeonggi-do 446-701
4. Korea
5. School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Low Dimensional Carbon Materials Center
6. Ulsan National Institute of Science and Technology (UNIST)
7. UNIST-gil 50
8. Ulsan 689-798