| 초록 |
We introduce high-performance electrochromic electrode fabricated via consecutive ligand exchange-based layer-by-layer (LbL) assembly. The electrode is composite of oleyl amine-stabilized electorchromic nanorods (OAm-WO2.72 NRs) in toluene, Tris(2-aminoethyl)amine (TREN) in ethanol, and oleyl amine-stabilized transparent conductive nanoparticles (OAm-ITO NPs) in toluene. Our approach is to demonstrate enhanced performance which are consequent upon the porous structure, high packing density and high conductivity. Through ligand exchange based layer-by-layer assembly, we fabricated highly porous film based on randomly packing nanorods which makes cations diffuse easily. The (ITO NPs/TREN) layers are inserted into (OAm-WO2.72 NR/TREN)20 multilayer electrode for enhancing electric conductivity. As a result, this film achieved high contrast of 42%, fast coloration and bleaching speed of 5s and 3s each, and high coloration efficiency of 243.2mC/cm2 at 633nm. |
