Given a PN step junction diode with Nd=10¹⁶ /cm³and Na=5x10¹⁵/cm³. Assume 300 degK.
(f) Sketch the energy band diagram for the p-n junction.
(g) Calculate the Fermi level (Ei -Ef) for the P-side of the junction
(h) Sketch the space-charge profile and sketch electric field distribution, using the the xn and xp calculated in (b).
(i)If Na is increased to
10¹⁸/cm³, what is the new built-in potential?
(j) If Na is increased to 10¹⁸/cm³,what happens to W?