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प्रश्न
What is a semiconductor
उत्तर
Semiconductors are substances having conductance in the intermediate range of 10-6 to 104 ohm−1m−1.
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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?
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?
Classify the following as being either a p-type or an n-type semiconductor:
Ge doped with In
Classify the following as being either a p-type or an n-type semiconductor:
B doped with Si.
Explain the following with suitable examples:
12-16 and 13-15 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 ____________.
The process by which impurity is introduced in semiconductors to enhance its conductivity is known as ____________.
Electrical conductivity of semiconductors increases with increase in ____________.
Which kind of defects are introduced by doping?
Silicon doped with electron-rich impurity forms ______.
Which of the following statements are true about semiconductors?
(i) Silicon doped with electron-rich impurity is a p-type semiconductor.
(ii) Silicon doped with an electron-rich impurity is an n-type semiconductor.
(iii) Delocalised electrons increase the conductivity of doped silicon.
(iv) An electron vacancy increases the conductivity of n-type semiconductor.
Why are solids incompressible?
Why does the electrical conductivity of semiconductors increase with rise in temperature?
