phosphor

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phos·phor

 (fŏs′fər, -fôr′)
n.
1. A substance that exhibits phosphorescence.
2. The phosphorescent coating inside the screen of a cathode-ray tube.

[Latin Phōsphorus, the morning star; see phosphorus.]

phosphor

(ˈfɒsfə)
n
(General Physics) a substance, such as the coating on a cathode-ray tube, capable of emitting light when irradiated with particles or electromagnetic radiation
[C17: from French, ultimately from Greek phōsphoros phosphorus]

phos•phor

(ˈfɒs fər, -fɔr)

n.
a substance that exhibits luminescence when struck by light of certain wavelengths, as by ultraviolet.
[1625–35; < French phosphore < Latin Phōsphorus < Greek Phōsphóros light-bringing, the morning star =phôs light + -phoros bringing]

phos·phor

(fŏs′fər)
A substance that can emit light after absorbing some form of radiation. The insides of television screens and fluorescent lamp tubes are coated with phosphors. See Note at cathode-ray tube.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phosphor - a synthetic substance that is fluorescent or phosphorescent; used to coat the screens of cathode ray tubes
synthetic, synthetic substance - a compound made artificially by chemical reactions
Translations

phosphor

nPhosphor m
References in periodicals archive ?
Among these phosphors, [Sr.sub.2][Si.sub.5][N.sub.8]:[Eu.sup.2+] showed excellent emission characteristics under a blue excitation wavelength of 450 nm, had a uniform particle size distribution, and high performance in LED packages [16-18].
Most white LEDs use phosphors excited by diode chips with short wavelengths (blue or violet) to reemit a broad spectrum light with a good color-rendering index [2-4].
Jones, "Electroluminescence in oxide phosphors," Journal of Electrochemistry Society, vol.
Kyoceras high-color-rendering LED lighting, which combines violet LEDs with phosphors and proprietary optical technologies, creates delicate illumination in a wide range of colors.
Because the current triphosphor blend discovered more than 30 years ago requires rare earth elements, researchers have identified new phosphors that are more environmentally friendly.
David Peat, Product Specialist at Intertronics, worked with Plessey to recommend mixing and dispensing equipment for the LED phosphors. The Thinky ARV-310 LED benchtop mixer is a non-contact planetary mixer which mixes, dispenses and degasses according to programmable mixing profiles.
While phosphors were used for decades in VI, fluorescent lighting, they were deep-ultraviolet driven and not suited for use with blue LEDs, which emit light at a frequency of around 455nm.
Several researchers studied the luminescence properties of [Bi.sup.3+] doped phosphors [1-6].
Sr[Al.sub.2][0.sub.4]: [Eu.sup.2+] phosphors were used in this study, which put no radical threat or water harm and produce 3~5 higher luminescent intensity than common ZnS:Cu.
The formation of and mechanism for phosphorescence in strontium aluminate phosphors have been thoroughly investigated, with Sr[Al.sub.2][O.sub.4]:[Eu.sup.2+], [Dy.sup.3+] phosphors as one of the most studied hosts and a major host for long afterglow commercial products.
There are three ways to produce white LEDs: (i) combining a blue LED with a yellow phosphor, for example, [Y.sub.3][Al.sub.5][O.sub.12]:[Ce.sup.3+], (ii) mixing red, green, and blue emissions from three LEDs, and (iii) exciting red/green/blue tricolor phosphors with a near-UV LED (370-410 nm).
Figure 5 shows ML emission spectra of Mg[Al.sub.2][O.sub.4]: Dy (0.1 mol%) phosphors. In order to find the luminescence centres responsible for ML emission, we have recorded ML spectrum.