• antireflective
• self-assembly
• superhydrophobicity
• Surface nanostructuring

In modern technology of sensors and displays, anti-reflection (AR) and self-cleaning properties are of essential importance, for the improvement the device's performance. In fact, the light reflected by the screen, can annoy the image that should shine out, or even it can reduce the sensitivity of the system in case of sensors. Furthermore, atmospheric agents can dirty the glass's surface, compromising the device's overall quality. Some strategy for the AR properties exploits the destructive interference introduced thanks to an additional coating. However, these techniques have problems like a bad adhesion coating-glass, thermal expansion mismatch and a limited wavelength-working range. The solution is thus inspired by nature, thanks to the nanostructured-anti-reflective surfaces found on the bodies and wings of some insects like cicada and butterfly. Thanks to nanostructures also some plants reach hydrophobicity that confers to the surface self-cleaning properties. The font of the AR property in this case is the gradient of the refractive index introduced by a sub-wavelength-nanostructure that inhibits reflection. Actually there are techniques that using lithography, manage to build pillars, but they are time-consuming and expensive. Our aim here is to obtain a bio-inspired, anti-reflective, hydrophobic, nanostructured surface, using a self-assembling, cheap and quick technique known as metal dewetting. This work has finally accomplished the aim to grow nanostructures on glass, managing to obtain anti-reflective, superhydrophobic surfaces