Phosphorescent plastic toy. This toy glow-worm glows by phosphorescence, a slow-release form of photoluminescence, the process where light is absorbed

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Phosphorescent plastic toy. This toy glow-worm glows by phosphorescence, a slow-release form of photoluminescence, the process where light is absorbed and re-emitted. Phosphorescence usually involves the absorption of ultraviolet (UV) light, and the emission of visible light, in this case, a green light. The phosphorescent material needs to be charged by exposure to a light source (for example, by shining a light on the toy). The light energy absorbed is then slowly released over time. The effect is best seen in a darkened room. The process observed in glow-worms is an unrelated chemical reaction, an example of bioluminesence.

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Size: 2544px × 3439px
Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: chemical, chemistry, common, dark, familiar, glow, glow---dark, glowing, green, item, items, light, object, objects, phosphorescence, phosphorescent, phosphorescing, photoluminescence, photoluminescent, physical, physics, single, toy