Tunable and Responsive Structural Color from Polymeric Microstructured Surfaces Enabled by Interference of Totally Internally Reflected Light
Tunable and Responsive Structural Color from Polymeric Microstructured Surfaces Enabled by Interference of Totally Internally Reflected Light
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DOI：
10.1021/acsmaterialslett.0c00143
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发表时间：
2020-07-06
影响因子：
11.4
通讯作者：
Zarzar, Lauren D.
中科院分区：
文献类型：
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作者：
Goodling, Amy E.;Nagelberg, Sara;Zarzar, Lauren D.
这份报告描述了一种直接而通用的方法来制备由微尺度穹顶或井特征组成的聚合物薄膜，这些特征通过全内反射的干涉来产生结构颜色。该制备方法利用玻璃颗粒在单体油-油1(n=1.64)水界面上组装，提供对所得微结构的曲率半径和接触角的控制。系统地研究了微尺度凹面几何形状和折射率对比度对结构色产生的影响，并与光学模型的预测结果进行了比较。通过动态改变这些参数，例如，通过用机械力使表面变形或使用温度来改变折射率，展示了对刺激响应的颜色变化表面和结构彩色图案图像。这种制造结构有色表面的简单设计和制造方法可能对动态显示、防伪技术和色度传感器等基础和应用研究领域感兴趣。
This report describes a straightforward and versatile approach to the fabrication of polymer films composed of microscale dome or well features that create structural color by interference from total internal reflection. The fabrication approach utilizes assembly of glass particles at monomer oil-oil 1, n=1.64 water interfaces, providing control over the radius of curvature and contact angle of the resultant microstructures. The influence of the microscale concave interface geometry and refractive index contrast on the structural colors produced is systematically investigated, and the results are compared with those predicted by optical modeling. By dynamically changing such parameters, for example, by deforming the surfaces with mechanical force or using temperature to change refractive index, stimuli-responsive color-changing surfaces and structurally colored patterned images are demonstrated. This simple design and fabrication method to produce structurally colored surfaces may be of interest for both fundamental and applied research areas such as dynamic displays, anticounterfeiting technology, and colorimetric sensors.