Figure 3 | Scientific Reports

Figure 3

From: Anti-reflectance investigation of a micro-nano hybrid structure fabricated by dry/wet etching methods

Figure 3

Nanostructures on micro tips obtained using the wet etching method: (a) top view of a low-magnification micrograph, (b) nanostructures on the top surface of the tips and the bottom surface of the substrate, and (c) nanostructures with a height of 13.34 μm on the profile of the tips. The tip sample with nanostructures that were fabricated by wet etching was indicated in Fig. 3, from millimeter scale to micrometer scale. High density nanograsses with height of 13.34 micron were seen in (c) and this sample showed the best performance of absorption among nine samples.

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