结构着色
栅栏
材料科学
纳米-
变形(气象学)
饱和(图论)
光学
蓝移
聚合物
光电子学
形状记忆聚合物
复合材料
光子晶体
光致发光
物理
组合数学
数学
作者
Jiaqin Zhao,Liang Zhang,Xinyue Du,Jinyan Xu,Taotao Lin,Yongjin Li,Xiaoqing Yang,Jichun You
出处
期刊:Nanoscale advances
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:4 (13): 2942-2949
被引量:4
摘要
In this work, surface nano-stripes and a reflective grating have been fabricated on shape memory polymers (SMPs) to simulate the active color change of chameleons. The structural color resulting from the interference of reflected light exhibits high saturation and it can be regulated continuously based on the shape memory effect. In addition to the viewing angle, the attained color is sensitive to the deformation at the macroscale. Uniaxial tension along stripes at high temperature produces a remarkable blueshift of the resultant color (from red to green and blue) which can switch back to red after shape recovery upon heating. The evolution of structural color can be attributed to the lower and higher magnitudes of nano-structure periods in temporary (deformed) and permanent (recovery) states respectively. Based on the combination of angle and deformation dependences of structural color, a "colorful" product code has been fabricated. It exhibits enhanced ability to hide and display information which plays an important role in anti-counterfeiting.
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