PHOSPHOR

Phosphor

A phosphor, most generally, is a substance that exhibits the phenomenon of luminescence. Somewhat confusingly, this includes both phosphorescent materials, which show a slow decay in brightness, and fluorescent materials, where the emission decay takes place over tens of nanoseconds. Phosphorescent materials are known for their use in radar screens and glow-in-the-dark toys, whereas fluorescent materials are common in cathode ray tube and plasma video display screens, sensors, and white LEDs.

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phosphor

Noun

  1. Any of various compounds of transition metals or of rare earths that exhibits phosphorescence.


The above text is a snippet from Wiktionary: phosphor
and as such is available under the Creative Commons Attribution/Share-Alike License.

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