What is the effective barrier height for a p-n junction diode under a forward bias voltage $V$, if t

Question

What is the effective barrier height for a p-n junction diode under a forward bias voltage $V$, if the equilibrium built-in potential is $V_0$?

Professor PC Thomas Classes · Answer

Under forward bias, the applied voltage $V$ opposes the built-in potential $V_0$. Therefore, the effective barrier height is reduced to $V_0-V$.