1. Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak‐ro, Yuseong‐gu Daejeon 34141 Republic of Korea
2. Electron Microscopy Research Center Korea Basic Science Institute (KBSI) Chungcheongbuk‐do Cheongju‐si 28119 Republic of Korea
3. Analysis and Assessment Research Center Research Institute of Industrial Science and Technology (RIST) 67 Cheongam‐ro, Nam‐gu Pohang Gyeongsangbuk‐do 37673 Republic of Korea
4. School of Pharmacy Sungkyunkwan University 2066 Seobu‐ro, Jangan‐gu Suwon‐si Gyeonggi‐do 16419 Republic of Korea