| 초록 |
Electrochromism (EC) is a phenomenon that reversibly changes color by the electrochemical redox reaction. Electrochromic devices (ECDs) using this phenomenon can be widely applied as smart windows and low power displays. Recently, ionic liquids (ILs) have been used in the formulation of ion gel blended with dielectric copolymers, such as poly(vinylidene fluoride)-trifluoroethylene (PVDF-TrFE), as a measure to resolve the leakage problem during ECD operation. However, side reactions such as aggregation and dimerization of the electrochromic material (ECM) can reduce the stability of the ECD. Here, we present the enhanced EC behaviors of ECDs by nano-webs prepared by electrospinning method. The electrospun mat may contain more ILs between the surface and the pores, thus significantly increasing the ionic mobility. The morphological structures and EC behaviors of the fabricated nano-web were investigated in terms of SEM, cyclic voltammetry, spectroelectrochemistry and kinetic stability |
