In which type of extrinsic semiconductor are electrons the major charge carriers?

In which type of extrinsic semiconductor are electrons the major charge carriers? Correct Answer n type

CONCEPT:

• Semiconductor: The material which is not a good conductor or a good insulator is called a semiconductor.
  • For example: Silicon, Germanium, etc
• Intrinsic semiconductor: The pure form of semiconductor is called an intrinsic semiconductor.
• Extrinsic semiconductor: The impurity atoms added are called dopants and semiconductors doped with the impurity atoms are called extrinsic or doped semiconductors.

  • P-type semiconductor: The semiconductor having holes as majority charge carriers and electrons as a minority charge carrier is called as P-type semiconductor.

  • N-type semiconductor: The semiconductor having electrons as majority charge carriers and holes as a minority charge carrier is called as N-type semiconductor.

EXPLANATION:

• ​From the above discussion, we can say that electrons are the major charge carriers in n-type semiconductors.

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• Elements of Group 5 have five valence electrons, i.e. 1 extra from the Group 4 elements.
• 4 out of 5 electrons get bonded with the neighboring Silicon atoms and 1 electron per atom remains extra with the Group 5 elements.