phosphor activator
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Phosphor — A phosphor is a substance that exhibits the phenomenon of phosphorescence (sustained glowing after exposure to energized particles such as electrons).Phosphors are transition metal compounds or rare earth compounds of various types. The most… … Wikipedia
activator — noun (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription • Ant: ↑inhibitor • Derivationally related forms: ↑activate … Useful english dictionary
Visual properties of some luminescent materials — ▪ Table Visual properties of some luminescent materials phosphor emission (phosphor/activator; coactivator) colour* persistence rhombohedral zinc orthosilicate/manganese 0.3%; 1,200 degrees C; 60 min, slow cooling green (525 nm) short (0.01 … Universalium
europium — /yoo roh pee euhm, yeuh /, n. Chem. a rare earth metallic element whose salts are light pink. Symbol: Eu; at. wt.: 151.96; at. no.: 63. [1900 05; EUROPE + IUM] * * * ▪ chemical element (Eu), chemical element, rare earth metal of the lanthanoid… … Universalium
luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… … Universalium
Europium — (pronEng|jʊˈroʊpiəm) is a chemical element with the symbol Eu and atomic number 63. It was named after the continent Europe. Characteristics Europium is the most reactive of the rare earth elements; it rapidly oxidizes in air, and resembles… … Wikipedia
Fluorescence — Fluorescent minerals emit visible light when exposed to ultraviolet light Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength.[1] It is a form of luminescence.… … Wikipedia
Zinc sulfide — Chembox new Name = Zinc sulfide ImageFile = Sphalerite unit cell 3D balls.png ImageSize = 150px ImageName = Sphalerite, the more common polymorph of zinc sulfide ImageFile1 = Wurtzite unit cell 3D balls.png ImageSize1 = 150px ImageName1 =… … Wikipedia
photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… … Universalium
Cadmium sulfide — Chembox new Name = Cadmium sulfide ImageFile = Hawleyite 3D balls.png ImageSize = 150px ImageName = 3D model of the structure of hawleyite ImageFile1 = Greenockite 3D balls.png ImageSize1 = 150px ImageName1 = 3D model of the structure of… … Wikipedia
Neurobiologische Schizophreniekonzepte — Unter dem Stichwort neurobiologische Schizophreniekonzepte werden Tatsachen und Theorien zusammengefasst, die sich mit den vornehmlich von Naturwissenschaftlern erstellten Modellen der Schizophrenie als Krankheit beschäftigen. Die moderne Medizin … Deutsch Wikipedia
