Phosphor - Wikipedia
网页A phosphor is a substance that exhibits the phenomenon of luminescence; it emits light when exposed to some type of radiant energy.
Phosphor | Light Emitting, Fluorescent, Luminescent | Britannica
网页Phosphor, solid material that emits light, or luminesces, when exposed to radiation such as ultraviolet light or an electron beam. Hundreds of thousands of phosphors have been synthesized, each one having its own characteristic colour of emission and period of time during which light is emitted.
Phosphorus - Wikipedia
网页Phosphorus is a chemical element; it has symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth.
Phosphorescence - Wikipedia
网页Phosphorescence is a type of photoluminescence related to fluorescence. When exposed to light (radiation) of a shorter wavelength, a phosphorescent substance will glow, absorbing the light and reemitting it at a longer wavelength. Unlike fluorescence, a phosphorescent material does not immediately reemit the radiation it absorbs.
Phosphor - Simple English Wikipedia, the free encyclopedia
网页A phosphor is a chemical compound that emits light when it is exposed to light of a different wavelength (i.e. color). Phosphors do not contain the chemical element Phosphorus, which can be made to glow a different way. This sometimes causes confusion.
Phosphor Definition & Meaning - Merriam-Webster
网页: a luminescent substance that emits light when excited by radiation (such as electrons) and is used especially in fluorescent lamps and cathode-ray tubes. Examples of phosphor in …
Phosphorus | Definition, Uses, & Facts | Britannica
网页2024年7月25日 · phosphorus (P), nonmetallic chemical element of the nitrogen family (Group 15 [Va] of the periodic table) that at room temperature is a colourless, semitransparent, soft, waxy solid that glows in the dark.
Phosphor - an overview | ScienceDirect Topics
网页2012年1月3日 · Phosphors are solid luminescent materials that emit light or luminescences when exposed to radiation, such as ultraviolet light. They convert energy into electromagnetic radiation, usually in the visible energy range.
Phosphor - chemeurope.com
网页A phosphor is a substance that exhibits the phenomenon of phosphorescence (sustained glowing after exposure to light or energised particles such as electrons). The chemical element phosphorus (Greek. phosphoros, meaning "light bearer") was discovered by German alchemist Hennig Brand in 1669.
Phosphorus Definition & Meaning - Merriam-Webster
网页The meaning of PHOSPHORUS is a phosphorescent substance or body; especially : one that shines or glows in the dark.
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