CUET · PHYSICS · PYQ PAPER 2023
From the following, choose the element for impurity atoms with which pure silicon should be doped to make it a p-type semiconductor:
- A Arsenic
- B Boron
- C Phosphorous
- D Antimony
Answer & Solution
Correct Answer
(B) Boron
Step-by-step Solution
Detailed explanation
To create a p-type semiconductor, you must dope pure silicon (Group 14) with trivalent impurities from Group 13. Boron has only three valence electrons, leaving a "hole" in the crystal lattice that acts as a positive charge carrier. Arsenic, Phosphorous, and Antimony are all…
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