In a novel approach that mimics nature, Bengaluru-based researchers have designed crystalline materials that selectively scatter specific colours of light. Dyes and pigments produce colour predominantly through selective absorption of light. But scattering of light by particles which are arranged in an ordered, periodic pattern produces structural colour, which gives butterfly wings their colour and sheen.
The backlit colour display of a mobile or a laptop monitor becomes difficult to read under intense light. But if the front panel were to be made of structural colour then the ambient light would become a source of colour. By producing crystals that scatter wavelengths corresponding to red, green and blue light, structural colours can be used in place of the conventional LED and LCD monitors, too.........Read more
Source: The Hindu