Abstract
AbstractStructurally colored materials could potentially replace dyes and pigments in many applications, but it is challenging to fabricate structural colors that mimic the appearance of absorbing pigments. We demonstrate the microfluidic fabrication of “photonic pigments” consisting of microcapsules containing dense amorphous packings of core–shell colloidal particles. These microcapsules show non‐iridescent structural colors that are independent of viewing angle, a critical requirement for applications such as displays or coatings. We show that the design of the microcapsules facilitates the suppression of incoherent and multiple scattering, enabling the fabrication of photonic pigments with colors spanning the visible spectrum. Our findings should provide new insights into the design and synthesis of materials with structural colors.
Highlights
The Harvard community has made this article openly available
The primary motivation for the work presented here is the production of photonic pigments that can be used for particle-based reflective displays with high efficiency
Field-addressable “electronic-ink”-type displays have been produced from microcapsule pigments containing black colloidal particles that absorb light and white particles that scatter light [4]
Summary
The Harvard community has made this article openly available. Please share how this access benefits you. “Full-Spectrum Photonic Pigments with Non-Iridescent Structural Colors through Colloidal Assembly.” Angew. Full-Spectrum Photonic Pigments with Non-iridescent Structural Colors through Colloidal Assembly
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