Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
In the case of forward biasing of p-n junction, which one of the following figures correctly depicts the direction of flow of carriers?
A
B
C
D
Answer
Explanation
Solution
As soon as the p-n function is formed, there is an immediate diffusion of the charge carrier across the junction due to thermal agitation. After diffusion, these charge carriers combine with their counterparts and neutralise each other. Therefore correct direction of flow carriers is depicted in figure (b).