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प्रश्न
Distinguish between p-type and n-type semiconductors.
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उत्तर
p-typed
(i) Number of holes are more than the number of electrons
(ii) Trivalent impurities are used for doping
(iii) These are called as acceptors
(iv) Holes are majority charge carriers.
n-typed
(i) Number of electrons are more than the number of holes.
(ii) Pentavalent impurities are used for doping.
(iii) These are called as doners
(iv) Electrons are majority charge carriers.
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संबंधित प्रश्न
p - type semi-conductors are made by mixing silicon with impurities of ______.
What type of semiconductor is obtained when silicon is doped with boron?
To prepare n-type semiconductor the impurity to be added to silicon should have the following number of valence electrons:
(a) 2
(b) 3
(c) 4
(d) 5
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Give reasons : Silicon on doping with Phosphorous forms n-type semiconductor.
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To get n-type of semiconductor, germanium should be doped with ____________.
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Which of the following is true about the charge acquired by p-type semiconductors?
To get a n-type semiconductor from silicon, it should be doped with a substance with valence ______.
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Explain why does conductivity of germanium crystals increase on doping with galium.
