Transmittance of UV to NIR light and pictures of flat glass and AR glass. (A) Transmittance of UV to NIR light through a flat reference glass (black solid line) and AR glasses with four different grassy surfaces on both sides. Inset: cross-section SEM image of grassy nanostructures with 7 min etch time. (B) Picture of a flat glass (left) and an AR glass (right) with bright illumination light. (C) Wetting behavior of the corresponding samples of (B). Inset: contact angle measurement results.
Song et al. Nanoscale Research Letters 2013 8:505 doi:10.1186/1556-276X-8-505