Fig. 1: Structural color printing technology.
From: Structural color printing via polymer-assisted photochemical deposition

a Schematic illustration of the polymer-assisted photochemical deposition (PPD) printing setup and an example of printed ASU logo (scale bar: 500 μm). b Three-dimensional scheme showing printing of multilayered film stack into microstructures. c Optical images showing an example of printed colored ASU logo corresponding to (b). Scale bar: 100 μm.