The most common electroluminescent (EL) devices are composed of either powder (primarily used in lighting applications) or thin films (for information displays.)Īn electroluminescent nightlight in operation (uses 0.08 W at 230 V, and dates from 1960 lit diameter is 59 mm) Certain organic semiconductors, such as 2+(PF 6 −) 2, where bpy is 2,2'-bipyridine.
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