Questions
Question 1
Animation: Semiconductor diode junction
This question consists of a series of images (one per page) that form an animation. Flip the pages withyour fingers to view this animation (or click on the ”next” button on your viewer) frame-by-frame.
The following animation illustrates the behavior of charge carriers inside a semiconductor diode junction.
1
Conduction band
Valence band
EfEf
Conduction band
Valence band
P N
0 V
2
Conduction band
Valence band
EfEf
Conduction band
Valence band
P N
0 V
3
Conduction band
Valence band
EfEf
Conduction band
Valence band
P N
0.1 V
4
Conduction band
Valence band
EfEf
Conduction band
Valence band
P N
0.1 V
5
Conduction band
Valence band
EfEf
Conduction band
Valence band
P N
0.2 V
6
Conduction band
Valence band
EfEf
Conduction band
Valence band
P N
0.2 V
7
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.3 V
8
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.3 V
9
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.4 V
10
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.4 V
11
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.5 V
12
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.5 V
13
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.6 V
14
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.6 V
15
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
16
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
17
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
18
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
19
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
20
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
21
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
22
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
23
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
24
Conduction band
Valence band
Ef
Ef
Conduction band
Valence band
P N
0.7 V
file 03809
25
Answers
Answer 1
Nothing to note here.
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Notes
Notes 1
The purpose of this animation is to let students see the actions of charge carriers inside a semiconductor
PN junction.
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