Researchers create world’s first energy-saving paint—inspired by butterflies
Structural absorption for color generation. (A) Many chemical substances produce color by selectively absorbing frequencies matching their molecular electronic transitions. Pink color in Formosa azaleas is due to the absorption of cyaniding molecules. (B) An example of structural coloration is found in the Peruvian Morpho didius. Lamella nanostructures found in its wings scatter the blue components of incident light generating its characteristic metallic blue. (C) A subwavelength plasmonic cavity formed by a…
