Ads
related to: phosphor shoelaces yeezy blue ashebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
Polycrystalline Mn:SrAl 12 O 19 is used as a green phosphor for plasma displays, and when doped with praseodymium or neodymium it can act as a good active laser medium. Sr 0.95 Ce 0.05 Mg 0.05 Al 11.95 O 19 is a phosphor emitting at 305 nm, with quantum efficiency of 70%. Several strontium aluminates can be prepared by the sol-gel process. [6]
The term phosphor had been used since the Middle Ages to describe minerals that glowed in the dark. One of the most famous, but not the first, was Bolognian phosphor. Around 1604, Vincenzo Casciarolo discovered a "lapis solaris" near Bologna, Italy. Once heated in an oxygen-rich furnace, it thereafter absorbed sunlight and glowed in the dark.
Intensifying phosphor for X-ray and gamma CaWO 4: Blue 410 nm 20 μs No Intensifying phosphor for X-ray and gamma MgWO 4: White 500 nm 80 μs No Intensifying phosphor YAP YAlO 3:Ce: Blue 370 nm 25 ns No For electrons, suitable for photomultipliers YAG Y 3 Al 5 O 12:Ce: Green 550 nm 70 ns No For electrons, suitable for photomultipliers YGG Y 3 ...
Various preparations of the phosphor compound can be used to produce different colors of light. For example, doping zinc sulfide phosphor with different metals can change the emission wavelength. [4] Some of the colors that have been manufactured in addition to the common phosphors are green, red, blue, yellow, purple, orange, and white.
Spectrum of a blue/green electroluminescent light source for a clock radio (similar to the one seen in the above image). Peak wavelength is at 492 nm and the FWHM spectral bandwidth is quite wide at about 85 nm. Electroluminescence is the result of radiative recombination of electrons and holes in a material, usually a semiconductor.
Greenville, South Carolina, is one of my favorite cities in the US. I love the city's walkable downtown, amazing food scene, and welcoming community.
Ads
related to: phosphor shoelaces yeezy blue ashebay.com has been visited by 1M+ users in the past month