An intrinsic semiconductor like Silicon () or Germanium () can be transformed into a p-type extrinsic semiconductor by heavily doping it with which of the following elements?

Question

An intrinsic semiconductor like Silicon ($Si$) or Germanium ($Ge$) can be transformed into a p-type extrinsic semiconductor by heavily doping it with which of the following elements?

Prashant Kotian · Accepted Answer

Correct answer: C. Doping a Group 14 element (like ) with a Group 13 element (like Boron, ) creates a deficiency of one electron per doped atom. This electron deficiency creates a "hole" that behaves as a positive charge carrier, thus creating a p-type semiconductor. Phosphorus, Arsenic, and Antimony are Group 15 and would create n-type semiconductors.

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