1. Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology (KIST), Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
2. Department of Advanced Materials Engineering for Information & Electronics, Kyung Hee University, Deogyeong-daro 1732, Giheung-gu, Yongin, Gyeonggi 17104, Republic of Korea
3. Korea Research Institute of Standard and Science (KRISS), Daejeon 34113, Republic of Korea
4. Energy and Environmental Division, Korea Institute of Ceramic Engineering and Technology (KICET), Soho-ro 101, Jinju-si, Gyeongsangnam-do 52851, Republic of Korea