Textured surfaces and methods of making and using same

A textured article, comprising

• a strengthened alkali aluminosilicate glass substrate having an average thickness of about 0.02 millimeters to about 2.0 millimeters, and comprising a plurality of mortise-topped protrusions on a surface;
• wherein the plurality of mortise-topped protrusions have an average height of less than or equal to about 200 nanometers, an average longest lateral cross-sectional dimension of less than or equal to about 150 nanometers, and are randomly oriented on the surface of the strengthened alkali aluminosilicate glass substrate so as to cover less than or equal to about 0.20 of an area fraction of the surface of the strengthened alkali aluminosilicate glass substrate.

A method of forming a textured article, the method comprising:

• disposing a mask comprising nanostructured metal-containing features on a surface of a substrate;
• and
• dry etching at least portions of the surface of the substrate on which the mask is not disposed to produce a plurality of mortise-topped protrusions on the surface of the substrate.