1. Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon, Korea;
2. Department of Chemistry Education, Pusan National University, Busan, Korea;
3. Department of Chemical Engineering, Kyunghee University, Suwon, Korea;
4. Department of Display Engineering, Pukyong National University, Busan, Korea;
5. Department of Fire Safety, Kyungil University, Gyeongsan, Korea