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A low-cost, high-efficiency light absorption structure inspired by the Papilio ulysses butterfly

机译: Papilio ulysses 蝴蝶启发的低成本,高效率的光吸收结构

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The nano-hole array structure in the black scales of the butterfly can be viewed as a natural solar collector. A low-cost, high-efficiency light absorption structure, inspired by the Papilio ulysses butterfly, was optimized using a finite-difference time-domain method. The results show that the nano-hole structure of Papilio ulysses contributes to light absorption. The shape of the holes affects the angular dependence of absorption. The absorption efficiency was found to be strongly affected by three parameters: H (the depth of the hole), D (the thickness of the hole-wall) and L (the size of the hole). These parameters were swept together in numerous simulations. The optimized nano-hole array saves 84% more material than a thin film of equal absorption (90%) at a wavelength of 600?nm.
机译:蝴蝶黑标度的纳米孔阵列结构可以看作是自然的太阳能收集器。灵感源自 Papilio ulysses 蝴蝶的低成本,高效率的光吸收结构,使用时域有限差分法进行了优化。结果表明, Papilio ulysses 的纳米孔结构有助于光吸收。孔的形状影响吸收的角度依赖性。发现吸收效率受到三个参数的强烈影响: H (孔的深度), D (孔壁的厚度)和 L (孔的大小)。这些参数在大量模拟中被合并在一起。经过优化的纳米孔阵列比在600?nm波长具有相同吸收率的薄膜(90%)节省的材料多84%。

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