Gold compound shifts from a visible fluorescence to emitting infrared when ground
Wednesday, May 31, 2017 - 08:02
in Physics & Chemistry
Some materials luminesce, changing their color and intensity when under mechanical forces such as grinding or rubbing. These luminescent "mechanochromic" materials can produce various emission colors in the visible light spectrum, from blue to red. Their color-shifts under force are well documented, and are caused by changes to the molecules' crystal structures.