Non Uniform Doping Of Semiconductor
1. What are the majority charge carriers of a p-type semiconductor and the minority charge carriers of an n-type semiconductor?
2. A 1D semiconductor of length l , placed along positive x axis (0 at left and L at right), is uniformly doped with p-type dopants for 0 ≤ x ≤ l/2 and undoped for l/2 ≤ x ≤ l. What will the direction of Drift current at x=L/2 will be?
3. Will the Fermi function in the semiconductor in the previous question be continuous at length x = l/2 under equilibrium?
4. Now the same semiconductor is doped with n-type dopants from length x = l/2 to x = l. How will the net diffusion current change?