Semiconductor! Semiconductor! Semiconductor!
Hoof! You are reading a lot about semiconductor
Semiconductors are of two types, intrinsic semiconductors and the other is extrinsic semiconductors. An intrinsic semiconductor is a pure type of semiconductor. And to improve the conduction capabilities of the pure semiconductor certain impurities are added to the pure semiconductor which is known as an extrinsic semiconductor.
Well.. n-type and p-type semiconductors are the two types of extrinsic semiconductors. The doping element trivalent or pentavalent decides the nature of the extrinsic semiconductor.
As we use two different types of elements in doping then this would make both the semiconductor slightly different from each other. And in this article, we will see some differences between those two semiconductors (n-type & P-type).
Difference between p-type and n-type semiconductor
The difference between both the semiconductors is listed below in the form of a table.
|Trivalent impurities added to the pure semiconductor||Pentavalent impurities added to the pure semiconductor|
|When an impurity is added, it creates holes that accept electrons. So the impurity added is also called acceptor impurity||The impurity added is also called donor impurity because, in addition to the semiconductor, it donates a free electron to the semiconductor crystal.|
|Group 3 elements are used as doping agents. For eg. Ga, Al, etc.||Group 5 elements are used as doping agents such as P, Bi, etc.|
|Holes are the majority charge carriers & electrons are the minority charge carriers||Electrons are the majority charge carriers & holes are the minority charge carriers|
|The density of holes is greater than the density of electrons.||The density of electrons is greater than the density of holes.|