Distinguish, differentiate, compare and explain what is the difference between N-type and P-type semiconductor.
Comparison and Difference between N-type and P-type semiconductor
- N-type is an extrinsic semiconductor which is obtained by doping the pentavalent impurity atoms such as phosphorous, arsenic etc to the pure germanium or silicon semiconductor. P-type is an extrinsic semiconductor which is obtained by doping trivalent impurity atoms such as boron, gallium, indium etc to the pure germanium or silicon semiconductor.
- In N-type, the impurity atoms added provide extra electrons in the structure and are called donar atoms. In P-type, the impurity atoms added create vacancies of electrons (i.e. holes ) in the structure and are called acceptor atoms.
- In N-type, the electrons are majority charge carriers and the holes are minority charge carriers. In P-type the holes are majority charge carriers and the electrons are minority charge carriers.