1. Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
2. Department of Energy Science Sungkyunkwan University Suwon 16419 Republic of Korea
3. Center for Neuromorphic Engineering Korea Institute Science and Technology (KIST) Seoul 02792 Republic of Korea
4. UNIST Central Research Facilities (UCRF) and Departmet of Materials Science and Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
5. Materials & Production Engineering Research Institute LG Electronics Pyeongtaek‐si 17709 Republic of Korea