Question Detail

Let's evaluate each statement:A. Doping with Group III elements (like Boron or Aluminum) creates acceptor impurities, which introduce holes in the valence band, leading to a p-type semiconductor. This statement is true.B. Doping with Group V elements (like Phosphorus or Arsenic) creates donor impurities, which provide free electrons to the conduction band, leading to an n-type semiconductor. This statement is true.C. Group III elements are trivalent and, when doped into a semiconductor, accept an electron, thus creating a 'hole' in the valency band. This statement is true.D. Doping with Group V elements (donors) leads to an excess of electrons in the conduction band, not excess holes. Holes are the majority carriers in p-type semiconductors, associated with the valency band. Therefore, this statement is NOT true.