Solar panels are usually dark black because they absorb light, so most designs that add other colors to the solar panels of these devices reduce their ability to absorb light and generate electricity.

    How to form colorful solar panels? Colored photovoltaic panels do not simply use pigments to color the protective glass of the battery. If the glass is colored, it will hinder the penetration of light and reduce the efficiency of the battery. One effective approach is to use structured color sources, taking advantage of microscopic shapes to reflect only very narrow, selective portions of light. The true inspiration for colored photovoltaic cells comes from the blue or green flickering phenomenon of butterfly wings, and the principle of spectral selective reflection makes the finished battery module a uniform and consistent color. Whether it's a flashy bright or a more sober gray, it's possible to design the color of your solar modules.

    However, previous attempts to combine structural colors have resulted in panels with iridescent colors, which are either undesirable or costly for large-scale applications.