[1] Korea Elect Technol Inst, Elect Mat & Device Res Ctr, Gyeonggi Do 463816, South Korea
[2] Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Suwon 440746, South Korea
[3] Sungkyunkwan Univ, Ctr Human Interface Nano Technol HINT, Dept Chem Engn, Suwon 440746, South Korea
[4] Soongsil Univ, Dept Organ Mat & Fiber Engn, Seoul 156743, South Korea
[5] Korea Inst Sci & Technol, Future Convergence Res Div, Seoul 136791, South Korea