1. School of ArchitecturalCivil; Environmental and Energy Engineering; Kyungpook National University; Daegu 702-701 Korea
2. Nano Process Division; Korea Advanced Nano Fab Center; Gyeonggi-do 443-270 Korea
3. Advanced Functional Thin Films Department; Korea Institute of Materials Science; Changwon 641-831 Korea
4. Department of Chemistry; Pohang University of Science and Technology; Pohang 790-784 Korea
5. Department of Information Display; Sunmoon University; Chungnam 336-708 Korea
6. Department of Visual Optics; Seoul National University of Science & Technology; Seoul 139-743 Korea
7. Department of Electrical Engineering; Kyungpook National University; Daegu 702-701 Korea