Question:
Which of the following dopant is added in silicon to obtain n-type semiconductor?
Which of the following dopant is added in silicon to obtain n-type semiconductor?
Show Hint
$n$-type = Negative (extra electron, Group 15); $p$-type = Positive (hole, Group 13).
Updated On: Apr 30, 2026
- As
- B
- Ga
- In
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Concept
$n$-type semiconductors are formed by doping Group 14 elements (Si, Ge) with Group 15 elements (electron-rich).
Step 2: Analysis
- Group 15 elements: P, As, Sb. - Group 13 elements (p-type): B, Al, Ga, In.
Step 3: Conclusion
Arsenic (As) is a Group 15 element, making it the correct dopant for $n$-type.
Final Answer: (A)
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