Letter | Published:

Electron Emission from Silicon p–n Junctions


IT is well known that silicon p–n junctions emit infra-red radiation when operated in the forward direction1 and visible light in the breakdown region of the blocking direction2,3. The experimental study of non-thermionic electron emission from solids showed that there is often a correlation between the electron emission and the luminescence, as was stressed particularly in the work by Bohun4,5. The question now arises whether the electroluminescence in p–n junctions is accompanied by emission of electrons.

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