(B) In a $p-$type semiconductor,the intrinsic semiconductor (like $Si$ or $Ge$) is doped with trivalent impurity atoms (such as $Boron$,$Aluminum$,or

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Holes are the majority carriers and trivalent atoms are the dopants.

(B) In a $p-$type semiconductor,the intrinsic semiconductor (like $Si$ or $Ge$) is doped with trivalent impurity atoms (such as $Boron$,$Aluminum$,or $Indium$).These trivalent atoms create vacancies in the crystal lattice,which are known as holes.Since these holes are present in a much higher concentration than the thermally generated electrons,holes act as the majority charge carriers in $p-$type semiconductors.

Class 12 Physics Semiconductor Electronics Types Semiconductors (P type and N type)

Medium

For a $p-$type semiconductor,which of the following statements is true?

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A
Electrons are the majority carriers and trivalent atoms are the dopants.
B
Holes are the majority carriers and trivalent atoms are the dopants.
C
Holes are the majority carriers and pentavalent atoms are the dopants.
D
Electrons are the majority carriers and pentavalent atoms are the dopants.

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Semiconductor Electronics

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Types Semiconductors (P type and N type)

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When a semiconductor is doped with donor impurity,

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An $n$-type and $p$-type semiconductor can be obtained by respectively doping pure silicon with

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For a $p-$type semiconductor,which of the following statements is true?

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