Structural Coloration of Colloidal Fiber by Photonic Band Gap and Resonant Mie Scattering
Structural Coloration of Colloidal Fiber by Photonic Band Gap and Resonant Mie Scattering
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光子带隙和共振米氏散射对胶体纤维的结构着色
DOI：
10.1021/acsami.5b03289
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发表时间：
2015
影响因子：
9.5
通讯作者：
Zhang Ke-Qin
中科院分区：
文献类型：
--
作者：
Yuan Wei;Zhou Ning;Shi Lei;Zhang Ke-Qin
由于结构色具有不褪色、不含染料等特点，结构色材料在众多研究领域中引起了人们的极大关注。在这项工作中，我们报告了一种新的结构着色策略应用于彩色胶体纤维的制造。采用胶体静电纺丝技术制备了结构颜色可调的纳米纤维。实验结果和理论模拟表明，静电纺丝纤维的均匀和非虹彩结构色是由两种现象引起的：光子结构的带隙反射和胶体球的Mie散射。我们前所未有的发现为各种纤维染色的革命性无染料技术的发展铺平了道路。
Because structural color is fadeless and dye-free, structurally colored materials have attracted great attention in a wide variety of research fields. In this work, we report the use of a novel structural coloration strategy applied to the fabrication of colorful colloidal fibers. The nanostructured fibers with tunable structural colors were massively produced by colloidal electrospinning. Experimental results and theoretical modeling reveal that the homogeneous and noniridescent structural colors of the electrospun fibers are caused by two phenomena: reflection due to the band gap of photonic structure and Mie scattering of the colloidal spheres. Our unprecedented findings show promise in paving way for the development of revolutionary dye-free technology for the coloration of various fibers.