1. SKKU Advanced Institute of Nano Technology (SAINT), Sungkyunkwan University, Suwon, Gyeonggi-Do 16419, Republic of Korea
2. School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi-Do 16419, Republic of Korea
3. Wonik Materials Co., Ltd., Research and Development Group, Cheongju 28215, Republic of Korea