CORRELATION BETWEEN ELECTROLUMINESCENCE AND ELECTRON EMISSION OF THIN METAL-OXIDE-METAL SANDWICHES

Abstract
Experiments performed on M‐O‐M sandwiches of Be–BeO–Au and Al–Al2O3–Ag have demonstrated that the electron emission of these so called thin‐film ``cathodes'' is actually due to photoemission from the counterelectrode caused by the luminescence of the device.

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