Research Article

One-Step Fabrication of Hierarchically Structured Silicon Surfaces and Modification of Their Morphologies Using Sacrificial Layers

Figure 6

Control of the nanostructure density and measurement of optical properties. ((a), (b)) Hierarchical structures having high density and low density, respectively. ((c), (d)) Surface with antireflectivity over a broad wavelength region; the specular reflection and diffuse reflection are suppressed by the density of the nanostructure.
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(a)
289256.fig.006b
(b)
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(c)
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(d)