1. Application of Nano Emerging Materials Research Section Electronics and Telecommunications Research Institute (ETRI) 218 Gajeong‐ro, Yuseong‐gu Daejeon 34129 Republic of Korea
2. Department of Advanced Device Engineering University of Science and Technology (UST) 217 Gajeong‐ro, Yuseong‐gu Daejeon 34113 Republic of Korea