**Author details**

Ryan G. Banal\* , Masataka Imura\* and Yasuo Koide\*

\*Address all correspondence to: BANAL.Ryan@nims.go.jp, IMURA.Masataka@nims.go.jp and KOIDE.Yasuo@nims.go.jp

Wide Bandgap Materials Group, National Institute for Materials Science (NIMS), Namiki, Tsukuba, Ibaraki, Japan
