PN Junction Diode

Depletion Region Formation: In a P- region holes are majority charge carriers and electrons are minority charge carriers. Also P- region have accepter ions. In N- region, electrons are majority charge carriers and holes are minority charge carriers. Also N- region have donor ions. From the P – region holes spread into the N- region. […]

Biasing of PN Junction Diode: Depletion region is created when PN junction is formed. Due to this depletion region, movement of electrons and holes stops. So the current flow through the PN- Junction is zero. If we want to make the current to flow through the circuit we have to bias the PN junction diode.