Structural color coatings for ceramics and glass surface by silica opal films
(シリカオパール膜によるセラミックスおよびガラス表面の構造色コーティング)
NIMS author(s)
Introduction
Development of Inorganic decorative technologies for ceramics and glass utilizing structural chromophores formed by the self-assembly of silica nanoparticles
A dip-coating method using a silica particle suspension can be used to form colloidal crystal thin films that exhibit vivid structural colors. This method is applicable not only to flat ceramic and glass substrates but also to curved surfaces, uneven surfaces, and unglazed ceramics with surface roughness. Furthermore, by controlling the particle size of the silica, structural colors spanning the entire visible light spectrum—from blue to red—can be designed. Heat treatment and hydrophobic modification suppress color fading caused by abrasion or exposure to water, enabling the films to retain stable structural colors. These thin films are expected to find applications in ceramics and glass products as an environmentally friendly decorative technology.
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Created at: 2026-05-02 03:05:34 +0900 Updated at: 2026-05-03 03:06:00 +0900