Variable structural colouration of composite interphases
Variable structural colouration of composite interphases
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DOI：
10.1039/c6mh00559d
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发表时间：
2017-05-01
影响因子：
13.3
通讯作者：
Heinrich, Gert
中科院分区：
文献类型：
--
作者：
Deng, Yinhu;Gao, Shanglin;Heinrich, Gert
由于光与周期性光子纳米结构的相互作用，可变的结构着色导致自然界中明亮的颜色变化。我们报告了在复合物界面区域中从红色、橙子、黄色到绿色的可变结构着色的观察结果。通过使用特殊的沉积方法将具有有序和无序特征的石墨烯纳米片（GNP）重叠，实现了独特的“鱼鳞”状结构。可变的结构着色观察通过精细的平行多层膜的机械调谐。此外，该方法结合了可变结构着色和电感测功能，为在材料失效之前进行危险评级和微裂纹预警迈出了有价值的第一步，使用几种颜色来解决“交通灯”系统中的危险、警报和安全问题。
Variable structural colouration results in brilliant colour changes in nature, due to the interaction of light with periodic photonic nanostructures. We report the observations of variable structural colouration from red, orange, yellow to green in a composite interphase region. By overlapping graphene nanoplatelets (GNPs) with ordered and disordered features using a special deposition approach, unique "fish scale" like structures are achieved. Variable structural colouration is observed through the mechanical tuning of fine parallel multilayers. Moreover, the method with incorporated variable structural colouration and electrical sensing functionality brings a first valuable step towards danger rating and the early warning of microcracks prior to a material's failure, using a few colours for addressing danger, alarm and safety in a "traffic light" system.