Difference between p and n type semiconductor:

Basis of differenceP type semiconductorN type semiconductor
Group of Doping ElementIn P type semiconductor III group element is added as doping element.In n type semiconductor V group element is added as doping element.
Nature of Doping ElementImpurity added creates vacancy of electrons (holes) called as Acceptor Atom.Impurity added provides extra electrons and is known as Donor Atom.
Type of impurity addedTrivalent impurity like Al, Ga, In etc. is added.Pentavalent impurity like P, As, Sb, Bi etc. is added.
Majority CarriersHoles are majority carriersElectrons are majority carriers
Minority CarriersElectrons are minority carriersHoles are minority carriers
Density of Electrons and HolesThe hole density is much greater than the electron density.
nh >> ne
The electron density is much greater than the hole density.
ne >> nh
Energy levelThe acceptor energy level is close to the valence band and away from the conduction band.The donor energy level is close to the conduction band and away from the valence band.
Fermi levelFermi level lies between acceptor energy level and the valence band.Fermi level lies between donor energy level and the conduction band.
Movement of Majority carriersMajority carriers move from higher to lower potential.Majority carriers move from lower to higher potential.

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