| 초록 |
We newly designed and synthesized a ribbon-shaped chiral liquid crystal (LC) dendrimer containing photochromic azobenznes and an isosorbide chiral center (abbreviated as AZDLC). Based on the diffraction experiments combined with thermal and morphological results, it was realized that AZDLC formed a low-ordered chiral smectic LC phase at a high-temperature phase region. The pitch length of the spontaneously formed helical superstructure can be precisely controlled by tuning the wavelength of light. Therefore, we were able to reversibly “remote-control” the colors in the whole visible region. This work was supported by the MOTIE/KDRC 10051334, BK21 Plus program, Mid-Career Researcher Program (2016R1A2B2011041), and Global Ph. D. Fellowship Program (NRF-2016H1A2A1907561). |
