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 The fF (E) decreases in which of the following band for p-type semiconductor?
  • a)
    Conduction band
  • b)
    Donor band
  • c)
    Acceptor band
  • d)
    Valence band
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The fF(E) decreases in which of the following band for p-type semicond...
The probability of finding the electron in the conduction band decreases for a p-type semiconductor because in a p-type semiconductor, the holes will be in conduction band rather than the electrons.
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Most Upvoted Answer
The fF(E) decreases in which of the following band for p-type semicond...
Conduction band is the correct answer.

Explanation:
In a p-type semiconductor, the majority charge carriers are holes which are created due to the presence of acceptor impurities. The acceptor impurities create energy levels just above the valence band, which are known as acceptor levels or acceptor bands.

When a p-type semiconductor is in thermal equilibrium, the Fermi level (EF) lies close to the acceptor levels, as the acceptor impurities donate electrons to form holes. The Fermi level determines the probability of finding an electron in an energy level.

The fF(E) represents the occupancy probability of electrons at a particular energy level E. As we move from the valence band towards higher energy levels, the occupancy probability decreases. This is because the energy levels in the conduction band are further away from the Fermi level, resulting in a lower probability of finding an electron at those energy levels.

Therefore, the fF(E) decreases in the conduction band for a p-type semiconductor. The conduction band represents the energy levels that are above the valence band and are available for the movement of charge carriers (electrons or holes) when an external electric field is applied.

To summarize:
- In a p-type semiconductor, the majority charge carriers are holes.
- The Fermi level lies close to the acceptor levels.
- The fF(E) represents the occupancy probability of electrons at a particular energy level.
- As we move from the valence band towards higher energy levels, the occupancy probability decreases.
- The conduction band represents the energy levels that are available for the movement of charge carriers.
- Therefore, the fF(E) decreases in the conduction band for a p-type semiconductor.
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The fF(E) decreases in which of the following band for p-type semiconductor?a)Conduction bandb)Donor bandc)Acceptor bandd)Valence bandCorrect answer is option 'A'. Can you explain this answer?
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