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- Dictionaryphosphoresce/ˌfɒsfəˈrɛs/
verb
- 1. emit light or radiation by phosphorescence: "we saw glow-worms phosphorescing at us from the dark of the bracken"
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verb. phos· pho· resce ˌfäs-fə-ˈres. phosphoresced; phosphorescing. intransitive verb. : to exhibit phosphorescence. Word History. Etymology. probably back-formation from phosphorescent. First Known Use. 1795, in the meaning defined above. Time Traveler. The first known use of phosphoresce was in 1795. See more words from the same year.
Phosphoresce definition: to be luminous without sensible heat, as phosphorus. . See examples of PHOSPHORESCE used in a sentence.
Phosphorescence is a type of luminescence that is caused by the absorption of radiations and continues for a noticeable time after they stop. Learn more about the word history, examples, and related terms of phosphorescence from Merriam-Webster dictionary.
- How It Works – Simple Explanation
- How It Works – Quantum Mechanics Explanation
- History
- Materials
- Phosphorescence Examples
- References
Basically, a phosphorescent material is “charged” by exposing it to light. The material absorbs light and releases the stored energy slowly and at a longer wavelength than the original light. So, a phosphorescent material might absorb ultraviolet light and release green light, but it can’t go the other way in the spectrum (e.g., green to blue). Som...
In fluorescence, a surface absorbs and re-emits a photon almost instantly (about 10 nanoseconds). This type of photoluminescence is fast because the energy of the absorbed photons matches energy states and allowed transitions of the material. Phosphorescence lasts much longer (milliseconds up to days) because the absorbed electron crosses into an e...
In 1602, Italian Vincenzo Casciarolo described a “lapis solaris” (sun stone) or “lapis lunaris” (moon stone). The discovery was described in philosophy professor Giulio Cesare la Galla’s 1612 book De Phenomenis in Orbe Lunae. La Galla reports Casciarolo’s stone emitted light on its on after it had been calcified through heating. It received light f...
In addition to natural minerals, phosphorescence is produced by chemical compounds. The best-known of these is zinc sulfide, which has been used in glow-in-the-dark stars and other products since the 1930s. Zinc sulfide usually emits a green phosphorescence, although phosphors may be added to change the color of light. Phosphors absorb the light em...
The stars people put on bedroom walls to glow at night are phosphorescent. Some watches have phosphorescent hands. There are also paving stones, lamps, and key rings that glow in the dark from this process. The phosphorus glow is chemiluminescence, so it is notan example of phosphorescence.
Franz, Karl A.; Kehr, Wolfgang G.; Siggel, Alfred; Wieczoreck, Jürgen; Adam, Waldemar (2002). “Luminescent Materials” in Ullmann’s Encyclopedia of Industrial Chemistry. Wiley-VCH. Weinheim. doi:10....McQuarrie, Donald A.; Simon, John D.; Choi, John (1997). Physical Chemistry: A Molecular Approach(1st ed.). University Science Books. ISBN: 9780935702996Roda, Aldo (2010). Chemiluminescence and Bioluminescence: Past, Present and Future. Royal Society of Chemistry.Zitoun, D.; Bernaud, L.; Manteghetti, A. (2009). Microwave Synthesis of a Long-Lasting Phosphor. J. Chem. Educ. 86. 72-75. doi:10.1021/ed086p72Phosphorescence 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.
Phosphorescence is a kind of weak light that is created in the dark without noticeable heat. Learn more about this phenomenon, see examples of phosphorescence in different contexts, and compare it with fluorescence and bioluminescence.
Phosphorescence definition: the property of being luminous at temperatures below incandescence, as from slow oxidation in the case of phosphorus or after exposure to light or other radiation.. See examples of PHOSPHORESCENCE used in a sentence.
