Ion Channeling by Liquid Crystal Alignment in Ultrathin Electrochromic Ion Gel Films
발표자
진수은 (부산대학교)
연구책임자
박종승 (부산대학교)
공동저자
진수은 (부산대학교), 박종승 (부산대학교)
초록
내용
We present an ultrathin electrochromic device that couples viologen chemistry with strain-induced liquid crystal (LC) alignment. The ion gel comprises LC monomers, a UV-curable viologen, tetra(ethylene glycol)diacrylate as an elastic crosslinker, a polyurethane polymer matrix, and the ionic liquid. Ultrathin films with thicknesses as low as 20 µm were produced by UV curing while preserving mechanical robustness. Mechanical stretching drives a transition of LC domains from an isotropic to a planar-aligned state, promoting ion channeling and accelerating ion transport. The prepared device exhibits strain-dependent reductions in electrical resistance, enabling direct visual strain sensing. This work establishes a multifunctional, stretchable electrochromic polymer platform suited for wearable and smart optoelectronic applications.