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प्रश्न
Give reasons : Silicon on doping with Phosphorous forms n-type semiconductor.
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उत्तर
Phosphorus is electron rich as it is element of group 15. When it is doped with element of group 14 i.e silicon an n-type semiconductor will form because here conductivity is due to the presence of extra electrons.
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संबंधित प्रश्न
In a semiconductor, acceptor impurity is.................................
- antimony
- indium
- phosphorous
- arsenic
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
When a hole is produced in P-type semiconductor, there is _______.
Distinguish between p-type and n-type semiconductors.
What is the ratio of octahedral holes to the number of anions in hexagonal closed packed structure?
Group 14 element is converted to p-type semiconductor by doping it with:
p-type semiconductors are formed when Si or Ge are doped with ____________.
To get a n-type semiconductor from silicon, it should be doped with a substance with valence ______.
Explain why does conductivity of germanium crystals increase on doping with galium.
