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多种蝴蝶鳞片具有三维跨尺度的亚微米结构,可在不同方向上呈现不同颜色,表现结构色特征.为了充分利用这一天然构造,本文以蝴蝶鳞片为模板,通过化学原位合成法,在鳞片表面成功地镀覆一层磁性金属钴,使得蝴蝶鳞片兼具结构色与磁性特征.进而可通过外加磁场人工控制磁性金属鳞片的角度和方向,使其反射不同颜色的可见光.该结果可为具有自然生物体三维亚微米结构的新型“磁光开关”的设计提供新思路.
A variety of butterfly scales with three-dimensional cross-scale submicron structure, in different directions showing different colors, the performance of structural color features.In order to take full advantage of this natural structure, this paper butterfly scales as a template, by chemical in situ synthesis, The scale surface is successfully coated with a layer of magnetic metallic cobalt, which makes the butterfly scales have both structural and magnetic characteristics, and the magnetic metal scales can be manually controlled by the applied magnetic field to reflect the visible light of different colors. The result may be A new type of “magneto-optical switch” with a three-dimensional submicron structure of natural organisms provides a new idea.