Graduate Student Oral Session (II) (English)
[O10-5]
우수논문발표상 응모자Electrochromic Smart Glass-Based Uniaxial Orientation of Lyotropic Chromonic Liquid Crystal Reactive Mesogen
발표자Pham Huu Huan (Jeonbuk National University)
연구책임자정광운 (전북대학교)
Abstract
To advance the development of an electrochromic (EC) smart glass, a π-extended viologen-based lyotropic chromonic liquid crystal (πV-LCLC) reactive mesogen (RM) is newly designed and successfully synthesized in this study. By extending the π-conjugation length of viologen, the πV-LCLC RM forms a stable LCLC phase at room temperature and retains its chemical integrity during the EC reactions, exhibiting reversible transitions across three redox states: dication (D), cation-radical (C), and neutral (N). A uniaxially oriented nanostructure is stably constructed on the macroscopic scale through shear-coating and photopolymerization. This newly developed πV-LCLC RM facilitates the fabrication of energy-efficient EC optical devices with tunable transmittance and multicolor modulation, and it is operable at a low voltage of 2.5 V. This work was supported by BK21 FOUR program and Basic Research Laboratory Program (RS-2023-00207836).