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Differentiate p type and n type …

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Differentiate p type and n type semiconductor

Posted by Satyajeet Mishra 6 years ago

CBSE > Class 12 > Physics

2 answers

Yogita Ingle 6 years ago

<th>BASIS OF DIFFERENCE</th> <th>p TYPE SEMICONDUCTOR</th> <th>n TYPE SEMICONDUCTOR</th>

Group of Doping Element	In 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 Element	Impurity added creates vacancy of electrons (holes) called as Acceptor Atom.	Impurity added provides extra electrons and is known as Donor Atom.
Type of impurity added	Trivalent impurity like Al, Ga, In etc. are added.	Pentavalent impurity like P, As, Sb, Bi etc. are added.
Majority Carriers	Holes are majority carriers	Electrons are majority carriers
Minority Carriers	Electrons are minority carriers	Holes are minority carriers
Density of Electrons and Holes	The hole density is much greater than the electron density. nh >> ne	The electron density is much greater than the hole density. ne >> nh
Energy level	The 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.

Vaibhav Dubey 6 years ago

P type holes play major role and if have max no. Of holes and in n type electrons use to pass current

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