JEE Advanced · PhysicsEasy
Which of the following materials is commonly used as a dopant to create a p-type semiconductor from silicon?
- A.Phosphorus
- B.Arsenic
- C.Boron
- D.Antimony
Show correct answer & step-by-step solution
Correct answer: C — Boron
Solution
- Silicon is a tetravalent element with four valence electrons.
- A p-type semiconductor is formed by doping silicon with a trivalent element, which has three valence electrons.
- Boron is a trivalent element, while phosphorus, arsenic, and antimony are pentavalent elements used to create n-type semiconductors.
- Hence the answer is (C).
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