Consider a silicon pn junction at 300 K with Na = 2 x 1017 cm-3 and Nd = 4 x 1016 cm-3. The cross- sectional area of the junction is 2 x 10-4 cm2. a) Calculate the majority and minority carrier concentrations on both sides of the junction, expressing your answers in the notation shown in class. b) Determine Vbi using the three methods shown in class. c) Find xn, xp, W, | max | for the junction at zero bias. d) Determine xn, xp, W, | max | for the same junction at a reverse-bias voltage of 2.5 V