| 초록 |
We newly synthesized the photo-responsive amphiphilic molecule containing photochromic azobenzene mesogen for fabricating a remote-controllable light shutter (abbreviated as Azo-OH). Based on the structure analysis, a phase transition was observed at different temperatures. Because of the photoisomerizable azobenzene, we expected that the phase can be converted from the solid and liquid states by changing molecular conformations of Azo-OH. Through the experimentations, it was demonstrated that the phase transition of Azo-OH occurred from powder to a liquidus droplet by irradiating the UV light in 20 seconds. When irradiated with visible light again, it reversibly turned into the solid state. With this photo-reversible isothermal phase transition behaviours of Azo-OH, we demonstrated the light shutter that reacts with visible light and UV light. This work was supported by BK21 Plus program, BRL 2015042417, and Mid-Career Researcher Program (2016R1A2B2011041) |
