| 초록 |
We newly designed and synthesized azobenzene-based organic dye (AGC) with metallic gold luster using crystal engineering of supramolecular dyes and programmed hierarchical superstructures. From the scanning electron microscopy and X-ray diffraction results, large clustered powdery textures with smooth surfaces are formed by merging small powder crystals during the recrystallization process. The AGC crystal provided the sharp contrast between intensive light absorption and reflection, resulting in the metallic luster. By the combination of hierarchical superstructures and chemical functional group, we can produce paintable polymer composites with brilliant gold color. When AGC thin film crystals are mixed with poly (vinyl alcohol), these materials can used in lane marking of the road and optoelectronic device. This work was supported by BK21 FOUR program, Basic Research Laboratory Program (2020R1A4A1018259) and Korea Agency for Infrastructure Technology Advancement (21POQW-B152733-03). |
