1. Department of Material Innovation, Graduate School of Pure and Applied Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
2. Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara, Jl. Dr. T. Mansur No. 9, Padang Bulan, Medan Baru, Medan, Sumatera Utara 20222, Indonesia
3. Department of Material Science, Institute of Pure and Applied Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan