1. Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
2. Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute (KETI), Seongnam 13509, Republic of Korea
3. Smart Materials R&D Center, Korea Automotive Technology Institute, Cheonan 31214, Republic of Korea