1. Samsung Advanced Institute of Technology; San 14-1, Nongseo-Ri, Kiheung-Eub Yongin-Si Kyeonggi-Do 446-712 South Korea
2. Semiconductor R&D Center; Samsung Electronics Co. Ltd.; San 16, Banwol-Dong Hwasung-City Kyeonggi-Do 447-701 South Korea
3. Samsung Display; Samsung St 181, Tangjeong-Myeon Asan-City Chungcheongnam-Do 330-300 South Korea
4. Department of Materials Science and Engineering; Seoul National University; Seoul 151-747 South Korea