ABSTRACT
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6.2.1.1 History In 1936, Destriau1,2 discovered the phenomenon of light generation by the application of a high AC electric field in a ZnS powder phosphor dispersed in castor oil. This phenomenon is called high-field powder phosphor electroluminescence (EL),1-9 and it differs from injection EL, which occurs in light-emitting diodes and is associated with processes within p-n junctions formed in semiconductor single crystals.
