Researchers develop tuneable anticounterfeiting material

Using the CLS, researchers from Western University have developed a promising new material for anticounterfeit markings. The luminescent materials that are currently used become visible when exposed to UV light, but stop glowing when the light source is removed. The new material created by the Western team remains visible to the human eye for several minutes after UV light is turned off. It emits a shade of red light that’s tough to reproduce. And an identification mark can be “programmed” to disappear in stages, with some elements vanishing almost immediately, while other elements fade away over several minutes. To read the full story online, visit www.lightsourc...

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Nice