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In a n-type semiconductor, which of the following is true?

  1. A
    Electrons are majority carriers and trivalent atoms are dopants.
  2. B
    Electrons are minority carriers and pentavalent atoms are dopants.
  3. C
    Holes are minority carriers and pentavalent atoms are dopants.
  4. D
    Holes are majority carriers and trivalent atoms are dopants.

Solution & Step-by-step Explanation

N-type (Negative-type) semiconductors are created by doping with pentavalent impurities (Group 15 elements like Phosphorus). This provides extra electrons as majority carriers, while holes remain as minority carriers.

Practice this question

Try it yourself before checking the explanation above.

In a n-type semiconductor, which of the following is true?
A
Electrons are majority carriers and trivalent atoms are dopants.
B
Electrons are minority carriers and pentavalent atoms are dopants.
C
Holes are minority carriers and pentavalent atoms are dopants.
D
Holes are majority carriers and trivalent atoms are dopants.

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