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Luminescence SOURCES AND PROCESS Luminescence is the emission of light
by certain materials when they are relatively cool. It is in contrast to light emitted
from incandescent bodies, such as burning wood or coal, molten iron, and wire ...
Table 2: Visual Properties of Some Luminescent Materials phosphor (phosphor/
activator ; coactivator) colour* ... When describing chemical principles associated
with luminescence, it is useful, at first, to neglect interactions between the ...
High luminescence efficiencies result. Application of a direct-current field yields
luminescence in crystals of gallium arsenide (GaAs), silicon carbide (SiC),
cadmium sulfide (CdS), and zinc monocrystals of sulfide with copper activator (
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