Bio-inspired fabrication of antireflection nanostructures by replicating fly eyes
Bio-inspired fabrication of antireflection nanostructures by replicating fly eyes
复制标题
DOI：
10.1088/0957-4484/19/02/025602
复制
发表时间：
2008-01-16
期刊：
影响因子：
3.5
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Huang, Jingyun;Wang, Xudong;Wang, Zhong Lin
在这项研究中，我们研究了家庭苍蝇复眼的精细结构，并使用低温原子层沉积技术精确地复制了其整个结构。蝇眼的表面被发现是由高度包装的突起，这可能会增加视觉效率，通过增加光子捕获给定的刺激。通过高温去除蝇复眼模板得到氧化铝复型，同时氧化铝涂层晶化。除了形态，独特的可变形性也被氧化铝复型所继承。通过测量复制品的反射光谱，我们证明了氧化铝复制品的蝇眼是一个有效的可见光在入射角高达80度的反射结构。这种光栅在固化的角膜表面上将是特别有用的，因为与光滑表面相比，它可以增加入射光通过角膜的透射。
In this study, we examined the fine structure of the compound eyes of a household fly and precisely replicated its entire structure using a low-temperature atomic layer deposition technique. The surface of the fly eye is found to be covered by highly packed protuberances, which potentially increases visual efficiency through increased photon capture for a given stimulus. The alumina replica was achieved by removing the fly compound eye template at high temperature, and the alumina coating was crystallized simultaneously. Besides the morphology, the unique antireflection property was also inherited by the alumina replica. By measuring the reflective spectra of the replica, we demonstrated that the alumina replica of a fly eye was an efficient antireflection structure of visible light at an incident angle up to 80 degrees. Such a grating would be particularly useful on a cured corneal surface since it could increase the transmission of incident light through the cornea compared with a smooth surface.