| 초록 |
A photo-responsible chiral molecule with azobenzene moieties and a naphthyl moiety was designed and synthesized for the demonstration of chameleonlike color changes sensible to multitudinous changes, such as light, temperature and electric field. The azobenzene moieties have some properties that not only the photo-reversible trans-cis molecular conformation changes change the helical pitch but also the molecular shape increases the compatibility and solubility in the N*-LC systems. Because of a chiral naphthyl group in molecular structures, it provides molecular chirality and breaks the molecular packing symmetry. In this work, Naphthyl groups are effective for breaking the molecular packing symmetries within the N-LC media. Changing the pitch length of helical superstructures, the visible range colors of N*-LC films were tuned. This work was supported by the BK21 plus, BRL2015042417, and Mid-Career Researcher Program (2016R1A2B2011041) of Republic of Korea. |
