Phototunable Morpho Butterfly Microstructures Modified by Liquid Crystal Polymers
Phototunable Morpho Butterfly Microstructures Modified by Liquid Crystal Polymers
复制标题
液晶聚合物修饰的光可调蝶形微结构
DOI:
10.1002/adom.201801494
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发表时间:
2018-12
影响因子:
9
通讯作者:
Yanlei Yu
中科院分区:
文献类型:
--
作者:
Xin Qing;Yuyun Liu;Jia Wei;Ran Zheng;Chongyu Zhu;Yanlei Yu
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.
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