Phototunable Morpho Butterfly Microstructures Modified by Liquid Crystal Polymers,Advanced Optical Materials

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Phototunable Morpho Butterfly Microstructures Modified by Liquid Crystal Polymers
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-12-05 , DOI: 10.1002/adom.201801494
Xin Qing ₁ , Yuyun Liu ₁ , Jia Wei ₁ , Ran Zheng ₂ , Chongyu Zhu ₁ , Yanlei Yu ₁

Affiliation

The unique hierarchical microstructures of the Morpho butterfly wing (MBW) exhibit angle independent blue iridescence. Biomimicking these microstructures and turning them into functional photonic crystals (PhCs) have fascinated scientists yet remain challenging. Here, a phototunable PhC is fabricated by depositing the azobenzene‐containing linear liquid crystal polymer (LLCP) onto the MBW template. Thanks to the excellent mechanical properties and deformability of LLCP, the generated 3D bilayer microstructures demonstrate hierarchical deformation upon UV light irradiation, leading to a blueshift of the reflection peak (70 nm) and a remarkable change of reflectance (40%). This phototunable PhC may have potential applications in pigments, cosmetics, and sensors.

中文翻译：

液晶聚合物修饰的光可调Morpho蝴蝶微结构

Morpho蝴蝶翼（MBW）的独特的分层微观结构表现出与角度无关的蓝色虹彩。对这些微结构进行生物仿制并将其转变为功能性光子晶体（PhC），令科学家着迷，但仍具有挑战性。在这里，通过将含偶氮苯的线性液晶聚合物（LLCP）沉积到MBW模板上来制造光可调PhC。由于LLCP具有出色的机械性能和可变形性，因此生成的3D双层微结构在紫外线照射下表现出分层变形，导致反射峰蓝移（70 nm）和反射率显着变化（40％）。这种光可调的PhC可能在颜料，化妆品和传感器中具有潜在的应用。

更新日期：2018-12-05

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