R&D Center;
Chang Sung Co. Ltd.;
11-9;
Namdong Industrial Area;
Namdong-gu;
Incheon 405-100;
Republic of Korea;
Department of Material Science and Engineering;
Yonsei University;
134 Shinchon-dong;
Seodaemun-gu;
Seoul 120-749;
Republic of Korea;