Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10998358 | Opto-Electronics Review | 2017 | 12 Pages |
Abstract
Investigations of electron photo-field emission demonstrated that the Fowler-Nordheim plots of the emission current have different slopes for nonilluminated and illuminated devices. A model based on the electron emission from valleys having different specific electron affinities is proposed to explain the experimental results. In the absence of illumination the emission takes place only from the lower valley. Upon UV illumination and presence of a high electric field at the emitter tip, the upper valley of the conduction band appears to be occupied by electrons generated at the valence band.
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Electrical and Electronic Engineering
Authors
V. Litovchenko, A. Evtukh, A. Grygoriev,