An intrinsic semiconductor is converted into an n-type extrinsic semiconductor by doping with:
Options

Question

An intrinsic semiconductor is converted into an n-type extrinsic semiconductor by doping with:

G1 Physics · Accepted Answer

A pentavalent dopant (such as phosphorus) provides an additional weakly bound electron and creates donor energy levels. Electrons become the majority charge carriers. Aluminium is trivalent and produces p-type doping. Final answer: Option A.