Crystal Engineering of Azobenzene-based Organic Dye for Paintable Metallic Luster
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초록
내용
Using self-assembly control of supramolecular dyes and programmed hierarchical superstructures with various dimensions, we developed azobenzene-based organic dye (A1GC) with metallic gold luster. From the morphological and diffraction study, large agglomerated powdery textures with smooth surfaces are formed by merging small powder crystals during the recrystallization process. The A1GC crystal provided the sharp contrast between intensive light absorption and reflection, resulting in the metallic luster. By the combination of chemical functionalities and hierarchical superstructures, we can produce organic paints with brilliant gold color. When A1GC thin film crystals are transferred to polymers to produce the composite materials, these materials can used in optoelectronic devices or paintable metallic coloration. This work was supported by Basic Research Laboratory Program (2020R1A4A1018259) and Korea Agency for Infrastructure Technology Advancement (20POQW-B152753-02).