Color-Tunable Smart Polarizer using Perylenediimide-Based Reactive Mesogen
발표자
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초록
내용
For fabrication of color-tunable smart polarizer (CSP) with behavior of redox responsivity, perylenediimide-based reactive mesogens (PRM) is newly designed and synthesized. Based on the results of scattering, spectroscopic, and microscopic experiments, it is confirmed that PRM exhibits a self-assembled lyotropic chromonic liquid crystal (LCLC) phase through π-π stacking and ionic repulsive force. The PRM CSP is fabricated using mechanical shearing, 40 wt% water solution, and photopolymerization. The PRM CSP absorbs whole wavelength of visible light in the reduced state and 500 nm in the neutral state, and it has high degree of polarization. The mechanochemical stabilities are investigated using solvent test and hardness test. The PRM CSP is applied to flexible color-tunable smart windows and anti-counterfeiting filter. This work was supported by Basic Research Laboratory Program (2020R1A4A1018259), Mid-Career Researcher Program (2016R1A2B2011041), and BK21 FOUR program.