Electroluminescence of Single Crystals of ZnS: Cu

Thin-Film Elucidation of the Electroluminescence Process

“…3 The implication is that in general neither electrodes nor embedding dielectric material play an important part in electroluminescence, with the single exception of the very thin films considered in this paper. Neither this observation nor the other experimental results serve to differentiate among the several possible excitation mechanisms of electroluminescence 10, [16][17][18][19][20][21] ; however, other evidence published elsewhere suggests minority carrier injection as most likely. 22 Whatever its nature, the excitation step must depend upon current flow which in turn depends on applied voltage or electric field.…”

ZnS nanostructures: From synthesis to applications

“…The phenomenon was discovered in 1936 by G. Destriau under the observations that when a ZnS (later found to be slightly doped with Cu) powder was suspended in an insulator and an intense alternating electric field was applied with capacitor like electrodes, visible light was emitted. This has led to a surge in research activities of EL properties of ZnS, which were mostly undertaken on single-crystals and powder samples [308][309][310][311][312]. The light output of thin-film electroluminescent displays has been very reliable, with little loss after tens of thousands of hours of operation.…”

Electroluminescent Zinc Sulfide Phosphors

“…Although several other papers (2)(3)(4)(5) have been published on the electroluminescence of zinc sulfide and zinc sulfoselenides, there has been no description in them of the method of preparation of the phosphors. Infrared stimulable phosphors using a combination of copper and lead as activators were described by Fonda (6) originally and there has 1 Manuscript received May 1, 1953.…”