Review: Fermi Level (Equilibrium)
Ec EF Ei Ev
n0 p0 = n2 = 1020 /cm3 i
n0 = ni e
(EF Ei )/kT
p0 = ni e(Ei EF )/kT
n0 EF Ei = kT ln ni p0 Ei EF = kT ln ni
n0 (cm-3) p0 (cm-3) EF - Ei (eV)
1011
1012
1013
1014
1015
0.026 ln10 = 0.06
0.026 ln102 = 0.06x2 42
E
EE 3161 Spring 2010 Homework #1 (100 Points) Assigned on Monday 2/1; Due: Wednesday 2/10 (in class) 1. Pierret Problem 1.10 (Direction on wafer surface) (20 pts)
2. Pierret Problem 2.6 (Fermi function questions) (40 pts)
3. Pierret Problem 2.12 (Hypotheti