EMF Induced in a p–n Junction under a Strong Microwave Field and Light

The effect of a strong electromagnetic field on currents and electromotive forces in a p – n junction is considered. It is shown that a p – n junction upon exposure to an electromagnetic wave becomes a source of electromotive force (emf) dependent on current. An analytical expression for the emf and internal resistance of such a source is derived. Dependences of the electromotive force and internal resistance on diode currents are obtained from the experimental current–voltage characteristic of a p – n junction placed into a strong microwave (UHF) electromagnetic field.