1. Department of Electrical EngineeringIncheon National University 119 Academy Rd. Yeonsu Incheon 22012 Republic of Korea
2. Photoelectric and Energy Device Application Lab (PEDAL)Multidisciplinary Core Institute for Future Energies (MCIFE)Incheon National University 119 Academy Rd. Yeonsu Incheon 22012 Republic of Korea
3. Department of PhysicsEwha Womans University 52 Ewhayeodae‐gil, Seodaemun‐gu Seoul 03760 Republic of Korea