E For each of the cases below, draw the band edge diagram at equilibrium, label it an appropriate name, and sketch the current-voltage response. A vacuum level is drawn for reference, as well as a scale bar for energy (each tick mark is 0.5 eV). a) Metal (3 eV) on n-type semiconductor (x=4 eV and Eg = 2 eV) [4pts] b) Metal (= 3 eV) on p-type semiconductor (x=3 eV and E = 2 eV) [4pts] g c) Metal (= 4 eV) on n-type semiconductor (x=3 eV and Eg = 2 eV) [4pts] Vacuum level position