A p-type semiconductor can be obtained by adding

Question

A p-type semiconductor can be obtained by adding (A) arsenic to pure silicon (B) aluminium to pure silicon (C) antimony to pure germanium (D) phosphorous to pure germanium

Tardigrade Admin · Accepted Answer

Atoms having 3 valence electrons such as Indium ( ln) or Gallium (Ga). Such atoms on being added to a pure semiconductor, instead of producing free electrons, accept electrons from the semiconductor. for this reason, trivalent impurity atoms are called acceptor impurity atoms. The semiconductor so produced is called p-type semiconductor.

Q. A p-type semiconductor can be obtained by adding

arsenic to pure silicon

aluminium to pure silicon

antimony to pure germanium

phosphorous to pure germanium