| 초록 |
Mesoporous metal oxides consisting of fully interconnected network structure with small pores (20-50 nm) have high surface area and reduced ion intercalation distance for high-performance electrochromic supercapacitors (ECSs). Herein, we introduce sub-1 s ultra-fast ECSs based on the amorphous mesoporous WO3 prepared by EISA. The performance of ECSs with mesoporous WO3 exhibits larger optical modulation, ultra-fast switching speeds, and high areal capacitance even at a high current density. In addition, excellent device stability during cyclic coloration/bleaching and charging/discharging is observed under fast response condition. Moreover, we fabricated a patterned mesoporous WO3 for ECS displays (ECSDs) via printing assisted EISA (PEISA). The resulting ECSDs can serve as electrochromic reflective displays that can change color according to the stored energy level and also can be used as portable energy-storage devices, simultaneously. |
