Silicon crystal can be converted to p-type semi-conductor by doping with__________________?
Correct answer: B. Boron
- A. Phosphorous
- B. Boron
- C. Carbon
- D. Nitrogen
Explanation
Boron has three valence electrons, so replacing silicon in its crystal lattice creates holes and produces p-type conduction. Phosphorus has five valence electrons and instead produces n-type silicon.
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