A. Assume this sample is n-type semiconductor, draw an arrow showing
the following: (10 Points)
1) Direction of the electric field
2) What are the majority carriers
3) What is the direction of electron diffusion
4) Using the standard definition of current flow, draw an arrow showing the direction of
diffusion current
5)
Using the standard definition of current flow, draw an arrow showing the direction of drift
current
+
X
Jn(Drift)
Jn(Diff)
High Can
Excess Carriers, Diffusion and total current Assignment #4
+
Semiconductor
Low Canc
B. Assume this sample is p-type semiconductor, draw an arrow showing
the following: (10 Points)
High Cons
I
1) Direction of the electric field
2) What are the majority carriers
3) What is the direction of hole diffusion
4) Using the standard definition of current flow, draw an arrow showing the direction of
diffusion current
5) Using the standard definition of current flow, draw an arrow showing the direction of
drift current
+Il+
Fall 2023
Jp(Drift)
Jp(Diff)
Low Can
Fig: 1