Module 6 : PHYSICS OF SEMICONDUCTOR DEVICES
Lecture 31 :
Electron in a Periodic Potential
At all non-zero temperatures, the value of
at
is 1/2. Thus one of the ways in which Fermi energy can be defined is the energy level where half of the available energy states are filled.
Exercise 4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
at 
is 1/2. Thus one of the ways in which Fermi energy can be defined is the energy level where half of the available energy states are filled. 
