Talk:Phosphor

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[edit] A Small Correction

A phosphor by definition does not under go fluorescent emission. A Fluorescent compounds is known as a fluorophore.

To add to the above, this means that optical brighteners are fluorophores, not phosphors. I will remove the erroneous entry under the heading Detergents. 142.103.207.10 22:37, 29 October 2007 (UTC)
See comment below.

[edit] ZnS:Ag

I would like to point out that ZnS:Ag is not green as suggested in the article, but a lovely bright blue. I would also like to add, in response to the correction that phosphors do not fluorece, that is not true. Long afterglow phosphors do indeed phosphoresce, but those which do not exhibit afterglow and stop emitting immediately the radiation is turned off are fluorescing.

I suppose we just need to be clear on our use of the two terms. A phosphor, by definition, undergoes phosphorescence. A fluorophore undergoes fluorescence. These are two separate processes with distinct physical origins. However, you are right in that there is nothing (that I can think of at least) that prevents a material from being both a phosphor and a fluorophore. I think the person who wrote the previous comment was trying to highlight that fluorescence is not a special case of phosphorescence or vice versa: they are separate (but related) chemical/physical phenomena. 142.103.207.10 01:52, 4 December 2007 (UTC)

[edit] CTR Phosphor

Would an electron/beta ray phosphor be by definition a CTR phosphor, since electrons hit the phosphor in a CTR tube? Polonium 22:31, 28 February 2006 (UTC)

[edit] Red phosphor slowed invention of color TV

Tried to find a source for this statement, but only found this: http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel5/16/31652/01475432.pdf MaxEnt (talk) 06:32, 23 December 2007 (UTC)