| 초록 |
The structural colors are tunable, iridescent, nonfading, and nontoxic, unlike chemical pigments, which renders them appealing for various applications. However, it is challenging to produce structural color graphics with high quality in a simple and reproducible manner. Here, we report a pragmatic direct-writing approach to produce single- and multi-colored graphics using photocurable colloidal inks. The inks are optimally formulated by dispersing silica particles in photocurable reins at high volume fractions to provide both macroscopic rheological properties required for the direct writing and microscopic arrangements of colloidal particles for structural coloration. The direct writing based on colloidal inks shows an unprecedented level of controllability in structural color printing and potentially serves as a pragmatic means to create customized graphics. |
