This work aims to apply photonic-crystal-based nanocoatings with unusual aesthetical orientation to wood application. Structural colors are currently a formula to achieve those colorful coatings including nonfading properties. They can be produced from self-assembled colloidal spheres into photonic crystals, which possess particular optical properties. Herein, photonic crystals with iridescent structural colors were prepared from the self-assembly of monodispersed nanospheres. Particle sizes can be adjusted from 308 to 196 nm, and well-ordered structures are arranged through self-assembly process into films, which exhibit brilliant colors over a wide visible spectrum, from red to violet. Color varies with the angle of observation of incidence light. The present study provided an effective and simple approach to prepare structural color films and their practical application to wood coating for an aesthetic appeal.

中文翻译：

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基于光子晶体的结构着色，用于木材的涂料应用

这项工作旨在将具有非常规美学取向的光子晶体基纳米涂层应用于木材。当前，结构色是实现那些具有不褪色性能的彩色涂层的配方。它们可以由自组装的胶体球制成具有特定光学特性的光子晶体。在此，具有虹彩结构色的光子晶体是由单分散纳米球的自组装制备的。粒径可在308 nm至196 nm范围内调节，并且通过自组装过程将排列整齐的结构排列成薄膜，这些薄膜在从红色到紫色的宽可见光谱范围内展现出鲜艳的色彩。颜色随入射光的观察角度而变化。