Activators initiate, improve, maintain the luminescence of phosphors.,
Phosphors are used in a variety of modern technologies, such as fluorescent lighting, cathode ray tubes, and flat-panel displays. They are also used in medical imaging, security features on banknotes, and in some types of radiation detectors.
Barium phosphate is commonly used in the production of ceramics, glass, and phosphors for electronic displays. It is also used in the manufacturing of specialty glasses, as a component in some dental materials, and as an additive in fertilizers.
BaPO4 is the chemical formula for barium phosphate, which is a white crystalline powder that is sparingly soluble in water. It is commonly used in the production of glass, ceramics, and phosphors.
No. Phosphorus is a chemical element; phosphors are materials, not necessarily elements, that emit light slowly enough to be useful light sources in the dark, without the need for applied electric current or other external energy supplies. The light emitted may have been absorbed from the environment experienced by a phosphor before its light is emitted and stored in the phosphor in the form of a metastable excited state of an atom, or it may arise from slow chemical reaction among, or radioactive decay of, one or more constituents of the phosphor.
Because Europium is fairly difficult to obtain it has few practical uses. Europium is unique in the fact that it can absorb more neutrons per atom then any other element. Thus making Europium and its isotopes very valuable in control rods of nuclear reactors. Like many other transition metals Europium is used in producing certain alloys, including striker and lighter flints. It's also been used in the creation of infrared absorbing automotive glass. Europium's compound, Europium Oxide, is often used as a phosphor activator. Europium's other two roles are also involved with phosphors. Europium is used in the production of phosphors for the creation of small lasers. But perhaps what Europium is known best for is the production of the red phosphors that are found in all color television screens.
Fluorescent light bulbs use phosphors to convert ultraviolet light into visible light.
The element primarily used in making phosphors for televisions is zinc, specifically in the form of zinc sulfide (ZnS). Other elements like europium and terbium are also used to create red and green phosphors, respectively. These phosphors emit light when excited by electrons, allowing for the display of colors on screens.
Some items that contain phosphors include fluorescent light bulbs, cathode ray tube (CRT) television screens, and computer monitors. These phosphors emit visible light when excited by ultraviolet radiation or electrons.
fluorescent, LEDs
fluorescent, LEDs
A fluorescent bulb
Although I would not recommend it, yes you can as most are non-toxic.If however you meant elemental Phosphorus instead of phosphors, NO, some form of Phosphorus are deadly poisons and white Phosphorus spontaneously ignites on contact with air!!!If you don't know the difference between phosphors and Phosphorus, that is the subject of a different question.
Phosphors for fluorescent lights are one.
they have a chemical in them
Glow paint typically contains phosphors that emit light once they have been charged by ambient light sources. These phosphors trap light energy and slowly release it over time, creating a luminous effect that glows in the dark. The paint may also contain binders and pigments that help hold the phosphors together and provide color.
Highlighters glow because of the phosphors that the black light contain and because of its chemicals in it.
For example the socalled phosphors. see the link below