| 초록 |
A perylenediimide-based dichroic mesogen (PDI-DM) was newly synthesized for color changeable polarizer (CCP). Since the PDI core has a high dichroic ratio as well as can reversibly change the absorption wavelength by redox reaction, it is suitable for anisotropic optical devices. Based on the results of structural analysis, it was confirmed that PDI-DM exhibits a Lyotropic Chromonic Liquid Crystal (LCLC) phase. The PDI-DM CCP was simply fabricated using mechanical shearing and then UV curing. According to the results of UV spectroscopy, PDI-DM CCP showed the characteristic of the E-type polarizer that absorbs only ordinary waves at λ = 500 nm as well as exhibits good redox properties. Finally, using the PDI-DM polarizer, smart windows and encryption devices that can be applied to real life were manufactured. This work was supported by BK21 FOUR program, Mid-Career Researcher Program (2021R1A2C2009423) and Creative Materials Discovery Program (2020M3D1A2100779). |
