Physics207410 marksThe semiconductor diode
Explain equilibrium current across the PN junction? Use Fermi-Dirac statistics and Maxwell-Boltzmann distribution to show the flow n to p is equal to the flow from p to n. How electron current from p to n (that is, associated with minority carries) is not affected by the height of the potential ener
Explain equilibrium current across the PN junction? Use Fermi-Dirac statistics and Maxwell-Boltzmann distribution to show the flow n to p is equal to the flow from p to n. How electron current from p to n (that is, associated with minority carries) is not affected by the height of the potential energy barrier? Explain.[10]
At thermal equilibrium (no external bias), a PN junction has a built-in potential barrier (contact potential) V₀ created by the diffusion of majority carriers. Despite this barrier, two opposing currents flow simultaneously and exactly cancel each other, resulting in zero net current. This is the...