| 초록 |
We newly designed and synthesized the liquid crystal (LC) molecule containing azobenzene part for fabricating a remote-controllable light shutter (abbreviated as AAzOH). It exhibited liquid crystal phase during cooling process and investigated by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). We expected that the solid and liquid states can be converted by changing molecular conformations of AAzOH by UV light. Actually, the crystal phase of AAzOH powder changed to a liquidus droplet by irradiating the UV light in 20 seconds. When irradiated with visible light again, it reversibly turned into a solid state. We successfully produced a light shutter that reacts with visible light and UV light. This work was supported by BK21 Plus program, the BRL 2015042417, Mid-Career Researcher Program (2016R1A2B2011041) |
