1. Display Components & Materials Research Center; Korea Electronics Technology Institute; Seongnam 463-816 South Korea
2. School of Chemical Engineering; Sungkyunkwan University; Suwon 440-746 South Korea
3. Photoelectronic Hybrid Research Center; Korea Institute of Science and Technology; Seoul 136-791 South Korea
4. Department of Chemistry; Korea University; Seoul 136-713 South Korea
5. Display Convergence Research Center; Korea Electronics Technology Institute; Seongnam 463-816 South Korea
6. Department of Science Education; Ewha Womans University; Seoul 120-750 South Korea