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Question: Answered & Verified by Expert
In a P-type semiconductor, the acceptor impurity produces an energy level
PhysicsSemiconductorsVITEEEVITEEE 2006
Options:
  • A just below the valence band
  • B just above the conduction band
  • C just below the conduction band
  • D just above the valence band
Solution:
1922 Upvotes Verified Answer
The correct answer is: just above the valence band
In p-type semiconductor, valency $=3$, thus there is one $\mathrm{ur} \mathrm{Y}$ med bond or hole created. This hole is in valence band and is able to cause hole current. The energy levels of acceptor are in forbidden gap just above valence band

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