1. Photovoltaics Research Department, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
2. Ulsan National Institute of Science and Technology (UNIST) Central Research Facilities (UCRF), UNIST, Ulsan 44919, Republic of Korea
3. Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
4. Department of Materials Engineering and Convergence Technology, Gyeongsang National University (GNU), Jinju 52828, Republic of Korea