Non-glare nanotextured multifunctional glass repels water and dust
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A scanning electron micrograph of a cross-section of the MIT nanotextured glass (Photo: Hyungryul Choi and Kyoo-Chul Park)
A light ray partially reflected from a flat glass surface (top), and how the reflections of an incident light ray become trapped on the nanotextured glass surface, (bottom) with the result that no light is reflected (Image: Brian Dodson)
A drop of water spreading into a thin layer on a normal glass surface in order to reduce the total energy of the system (top), and a drop of water repelled from a nanotextured glass surface (bottom)(Image: Brian Dodson)
Glass has a unique look - despite its clarity you can tell there is a material there by the way it reflects light, and that it isn't plastic or crystal. Glass, however, carries problems, like glare, fogging, and collects dirt. A group of MIT researchers has found a new way to create arrays of conical micron-scale surface nanotextures to produce glass that is self-cleaning, non-glare, and non-fogging. The researchers believe the nanotextured surface can be made at low enough cost to be applied to optical devices, the screens of smartphones and televisions, solar panels, car windshields and even windows in buildings.
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