Premium
Full‐Spectrum Photonic Pigments with Non‐iridescent Structural Colors through Colloidal Assembly
Author(s) -
Park JinGyu,
Kim ShinHyun,
Magkiriadou Sofia,
Choi Tae Min,
Kim YoungSeok,
Manoharan Vinothan N.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201309306
Subject(s) - structural coloration , iridescence , fabrication , photonics , materials science , nanotechnology , photonic crystal , colored , microfluidics , colloid , pigment , self assembly , visible spectrum , amorphous solid , light scattering , optoelectronics , scattering , optics , chemistry , composite material , physics , medicine , alternative medicine , organic chemistry , pathology
Structurally 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.