1. Department of Electronic Engineering, Hanyang University, Seoul 04763, Republic of Korea
2. NexusBe, Jeonju-si 55069, Jeollabuk-do, Republic of Korea
3. Lake Materials, Sejong-si 30003, Chungcheongnam-do, Republic of Korea
4. Semiconductor R&D Center, Samsung Electronics Co., Hwaseong-si 18448, Gyeonggi-do, Republic of Korea