Preparation of a highly color-saturated amorphous photonic crystal structural color glaze by imitating the multilayered structure of Jun porcelain.

As is well known, a black background can remove the influence of background light reflection and improve the color saturation of amorphous photonic crystal structural color. Coincidentally, a multilayered structure with a black layer of glaze base was found in Jun porcelain. Based on this, black crucible soil with high Fe 2 O 3 content was used as the raw material for imitating the multilayered structure. Furthermore, the reason for the formation of the black layer and its influence law on the saturation of structural color glazes were also studied. The results indicated that the diffusion of iron and titanium ions under the concentration gradient promoted the formation of a black layer. In addition, with increasing amounts of black crucible soil, the diffusion amount and depth of the transition metal ions were large, and the black layer was thickened. It was conducive to improving color saturation for the structural color glaze. [ABSTRACT FROM AUTHOR]