Photonic balls containing a microstructure of core-shell particles exhibiting angularly-independent structural color

Publication information:

Manoharan, V.; Magkiriadou, S.; Park, J.-G.
Photonic Balls Containing a Microstructure of Core-Shell Particles Exhibiting Angularly-Independent Structural Color, 2014.

Abstract

A photonic assembly for observing a preselected color includes an assembly of colloidal particles in a continuous liquid phase, the colloidal particles comprising a core scattering center and a shell layer surrounding the core, wherein the core scattering center is selected to scatter light having a predetermined wavelength, and wherein the shell has a thickness selected to provide an overall colloidal particle size that is about the same dimension as the wavelength of preselected color to be observed.