CBSE · Class 12 · Physics · Semiconductor ElectronicsTo obtain p-type semiconductor, a pure semiconductor is doped with:
Step-by-Step Solution
To obtain a p-type semiconductor, a trivalent impurity (such as boron, indium, or aluminium) having 3 valence electrons is doped into a pure tetravalent semiconductor (like silicon or germanium). This creates electron vacancies known as holes.
Detailed Options Breakdown
Option : Trivalent impurity (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: Pentavalent impurity
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Semiconductor Electronics.
Option 2: Monovalent impurity
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Semiconductor Electronics.
Option 3: Divalent impurity
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Semiconductor Electronics.
💡 Study Guide: This question tests core syllabus concepts from Semiconductor Electronics. For formulas, key summaries, and mock exam reference guides, read the full Semiconductor Electronics Revision Notes.