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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
A pure semiconductor is ________.
(a) an extrinsic semiconductor
(b) an intrinsic semiconductor
(c) p-type semiconductor
(d) n-type semiconductor
What is the ratio of octahedral holes to the number of anions in hexagonal closed packed structure?
A group of 14 elements is converted into n-type semiconductor by doping it with:
Group 14 element is converted to p-type semiconductor by doping it with:
In n-type semiconductor, current is carried by ____________.
Which transition metal oxide has appearance and conductivity like that of copper?
To get n-type of semiconductor, germanium should be doped with ____________.
p-type semiconductors are formed when Si or Ge are doped with ____________.
Which of the following oxides behaves as conductor or insulator depending upon temperature?
To get a n-type semiconductor from silicon, it should be doped with a substance with valence ______.
A perfect crystal of silicon (Figure) is doped with some elements as given in the options. Which of these options show n-type semiconductors?
Explain why does conductivity of germanium crystals increase on doping with galium.
How does the doping increase the conductivity of semiconductors?
