Structural colors result from interactions between light and nanostructures. Engineering structural colors is a promising, rapidly emerging research field. Compared with conventional painting technology using chemical dyes, structural color has a broader range of technological applications for color management. Thanks in part to its excellent durability, structural color offers an environmentally friendly route for color printing.
Click here for original story, Centimeter-scale multicolor printing with a pixelated optical cavity
Source: Phys.org