Moderate

To obtain a p-type semiconductor, we need to dope pure silicon with

Correct answer: A. aluminium

  • A. aluminium
  • B. oxygen
  • C. phosphorus
  • D. germanium

Explanation

To obtain a p-type semiconductor, pure silicon is doped with a trivalent impurity. Aluminium is commonly used as a dopant for creating p-type silicon by substituting some silicon atoms in the crystal lattice

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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.

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