1. Energy Efficiency Technologies and Materials Science DivisionKorea Institute of Energy Research 152 Gajeong-ro, Yuseong-gu Daejeon 34129 Republic of Korea
2. Department of Advanced Materials Engineering for Information and ElectronicsKyung Hee University 1732 Deogyeong-daero, Giheung-gu Yongin 17104 Republic of Korea
3. Department of Materials Science and EngineeringChosun University 309 Pilmun-daero, Dong-gu Gwangju 61452 Republic of Korea