TS EAMCET · Physics · Semiconductors
A semiconductor is doped with phosphorous atoms as impurity. The impurity levels created in the semiconductor are close to the
- A top of the valence band
- B bottom of the conduction band
- C bottom of the valence band
- D top of the conduction band
Answer & Solution
Correct Answer
(B) bottom of the conduction band
Step-by-step Solution
Detailed explanation
Phosphorous is a pentavalent impurity. So, resulting semiconductor is a \(n\)-type semiconductor. The energy band diagram of a \(n\)-type semiconductor is shown below So, the energy levels of impurity atom created in the semiconductor are close to the bottom of the conduction…
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