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KCET2013PhysicsSemiconductors

In which of the following statements, the obtained impure semiconductor is of p -type?

Options

  1. AGermanium is doped with bismuth
  2. BSilicon is doped with antimony
  3. CGermanium is doped with gallium
  4. DSilicon is doped with phosphorus

Correct answer

C. Germanium is doped with gallium

Step-by-step solution

A p-type semiconductor is obtained by the dopping of a trivalent atom. Gallium is trivalent element, so germanium is doped with gallium.

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