{HEAD ~ The visible emission} from {TAIL ~ the activator ions} preferably complementing the band edge emission of the LED in order to produce an overall white emission from the LED 
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{ HEAD ~ The visible emission } from { TAIL ~ the activator ions } preferably complementing the band edge emission of the LED in order to produce an overall white emission from the LED
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH