Electrochromic Thin Film of Water-Dispersible Prussian-Blue Nanoparticles. - Ayako Omura; Hirofumi Shiozaki; Shigeo Hara; Tohru Kawamoto; Akihito Gotoh; Masahito Kurihara; Masaomi Sakamoto; Hisashi Tanaka (IEICE Trans. Electron., 2008)