| 초록 |
An azobenzene-based amphiphilic organic dye (AGC) was designed and synthesized using crystal engineering and programmable hierarchical superstructures for the fabrication of paintable metallic luster organic dyes. Combining small powder crystals during the recrystallization process leads in large clustered powdery textures with smooth surfaces, as confirmed by scanning electron microscopy and X-ray diffraction data. The gold metallic luster was obtained by a striking contrast between high light absorption and reflection. In addition, by combining hierarchical superstructures with chemical functional groups, we can fabricate paintable polymer composites. When AGC thin film crystals are mixed with poly(vinyl alcohol), these materials can be used in road marking and optoelectronic devices. This work was supported by BK21 FOUR program, Mid-Career Researcher Program (2021R1A2C2009423) and Korea Agency for Infrastructure Technology (22POQW-B152733-04). |
