Question

How is an n-type semiconductor formed? Name the major change carriers in it. Draw the energy band diagram of n-type semiconductor.

Answer 1

Answer:

Draw the energy band diagram of n-type semiconductor. Solution : When in a pure semiconductor of germanium or silicon, the pentavalent impurity atoms of Bi, Sd or P are dopped, we get n-type semiconductor. The electrons are the majority charge carriers in it.

Explanation:

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Answer 2

Whenever any pentavalent impurities are added to any intrinsic type semiconductor we get an n type semiconductor.

Majority of charge carriers are electrons in n type semiconductor

Explanation:

• Adding impurities to any intrinsic type semiconductors enhance the conductivity of the semiconductor and the process of adding impurities is known as doping
• Intrinsic or pure type semiconductor can be made n-type semiconductor by adding pentavalent impurities that is elements have five electrons in outer most shell
• In n type semiconductors extra electrons are adding by doping process hence majority charge carriers are electrons and minority charge carriers are holes
• Energy band diagram is attached below

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