Nanostructure-free crescent-shaped microparticles as full-color reflective pigments.

ABSTRACT: Structural colors provide a promising visualization with high color saturation, iridescent characteristics, and fade resistance. However, pragmatic uses are frequently impeded by complex manufacturing processes for sophisticated nanostructures. Here, we report a facile emulsion-templating strategy to produce crescent-shaped microparticles as structural color pigments. The micro-crescents exhibit brilliant colors under directional light originating from total internal reflections and optical interferences in the absence of periodic nanostructures while being transparent under ambient light. The colors are finely tunable by adjusting the size of the micro-crescents, which can be further mixed to enrich the variety. Importantly, the pre-defined convex surface secures high stability of colors

SUBMITTER: Yang Y 

PROVIDER: S-EPMC9922275 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature