Figure 5From: Lithography-Free Fabrication of Large Area Subwavelength Antireflection Structures Using Thermally Dewetted Pt/Pd Alloy Etch MaskSi substrate (a) with fabricated SAS array is compared to bare Si substrate (b). Due to the low reflectance of the SAS array, substrate (a) seems completely black, while the highly reflective bare Si substrate (b) reflects the image of the camera that took this pictureBack to article page