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प्रश्न
Classify each of the following as being either a p-type or a n-type semiconductor:
- Ge doped with In
- B doped with Si
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उत्तर १
| p-type semiconductor | n-type semiconductor |
| Ge doped with | B doped with Si |
उत्तर २
- While In is a group 13 element, Ge is a group 14 element. When Ge is doped with In, the doped material will behave as a p-type semiconductor and electron-deficient holes will be formed in the lattice.
- Si is an element in group 14, whereas B is an element in group 13. The doped material will function as an n-type semiconductor and conduct electricity using the standard electron conduction method.
संबंधित प्रश्न
A group 14 element is to be converted into n-type semiconductor by doping it with a suitable impurity. To which group should this impurity belong?
What is a semiconductor?
Describe the two main types of semiconductors and contrast their conduction mechanism.
Non-stoichiometric cuprous oxide, Cu2O can be prepared in laboratory. In this oxide, copper to oxygen ratio is slightly less than 2 : 1. Can you account for the fact that this substance is a p-type semiconductor?
Explain the following with suitable examples:
12-16 group compounds
What type of semiconductor is obtained when
Si is doped with P?
Solids with conductivities ranging from 104 to 107 ohm-1 m-1 are ____________.
Semiconductors have conductivity (in ohm-1 m-1) in the range of ____________.
The process by which impurity is introduced in semiconductors to enhance its conductivity is known as ____________.
Electrical conductivity of semiconductors increases with increase in ____________.
Silicon doped with electron-rich impurity forms ______.
Why are solids incompressible?
Why does the electrical conductivity of semiconductors increase with rise in temperature?
Silicon is a/an ______
