alok_ky
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Hi,
I know that in a pn junction, at equalibrium, the Fermilevels in the p and n sides reach the same level, because the elcetron will flow from both sides to the other side, untill the fremi - levels become equal.
Now, I want to know, as to why, at equilibrium, the fermi levels in the metal and semiconductor are equal in a MOS capacitor. The oxide cannot support the flow of electrons from either side. Then how the fermi levels become equal ????
I know that in a pn junction, at equalibrium, the Fermilevels in the p and n sides reach the same level, because the elcetron will flow from both sides to the other side, untill the fremi - levels become equal.
Now, I want to know, as to why, at equilibrium, the fermi levels in the metal and semiconductor are equal in a MOS capacitor. The oxide cannot support the flow of electrons from either side. Then how the fermi levels become equal ????