Design for approaching Cicada-wing reflectance in low- and high-index biomimetic nanostructures.

  title={Design for approaching Cicada-wing reflectance in low- and high-index biomimetic nanostructures.},
  author={Yi-Fan Huang and Yi-Jun Jen and Li-Chyong Chen and Kuei-Hsien Chen and Surojit Chattopadhyay},
  journal={ACS nano},
  volume={9 1},
Natural nanostructures in low refractive index Cicada wings demonstrate ≤ 1% reflectance over the visible spectrum. We provide design parameters for Cicada-wing-inspired nanotip arrays as efficient light harvesters over a 300-1000 nm spectrum and up to 60° angle of incidence in both low-index, such as silica and indium tin oxide, and high-index, such as silicon and germanium, photovoltaic materials. Biomimicry of the Cicada wing design, demonstrating gradient index, onto these material surfaces… 

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