Author Topic: "Rare Earth" Phosphor  (Read 1771 times)
nogden
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Nelson Ogden


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"Rare Earth" Phosphor « on: January 29, 2011, 04:11:44 PM » Author: nogden
I've always been curious - if triphosphor is also known as rare earth phosphor, how rare is it?
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Medved
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Re: "Rare Earth" Phosphor « Reply #1 on: January 30, 2011, 02:27:13 AM » Author: Medved
"Rare earth elements" is term used in chemistry for specific group of chemical elements.

Consequently phosphors using some of these elements got their name, hence "rare earth phosphors"

I guess it originate in the history, when the deposit they were found in was considered as rare.

How rare are they in fact today i don't know, but the fact, then the majority of them is mined in China would make them really rare for non-chineese industrial users...
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