| 초록 |
To fabricate the rewritable electro-optic devices, we newly synthesized the macrogelator of a benzene-1,3,5-tricarboxamide (BTA)-based macrogelator (abbreviated B9AZ). By means of liquid crystalline physical gelation (LCPG) process, the programmed B9AZ macrogelator in the NLC medium built up three-dimensional networks not only by hydrogen-bonding between BTA cores but also by nanophase separations between B9AZs and NLCs. On the basis of the anisotropic optical properties of LCPGs, it was realized that a light scattering state of B9AZ LCPGs can be switched to a transmittance state under a fairly low driving voltage (22 V) compared with those of polymer-based systems. Additionally, the B9AZ LCPGs can be remote-controlled by utilizing the trans–cis photoisomerization of the azobenzene moieties in the LCPGs. This work was supported by the Mid-Career Researcher Program (2016R1A2B2011041) and Global Ph. D. Fellowship Program (NRF-2016H1A2A1907561) of Korea. |
