Doped Semiconductors (21.1.4)

Question 1

• Doped semiconductors have added impurities to make them act in a predictable and useful manner.

Answer 1

• Doped semiconductors have added impurities to make them act in a predictable and useful manner.

Question 2

• N-type doping involves the addition of group 15(VA) elements into the matrix of a semiconductor to introduce valence electrons into the conduction band.

Answer 2

• N-type doping involves the addition of group 15(VA) elements into the matrix of a semiconductor to introduce valence electrons into the conduction band.

Question 3

• P-type doping involves the addition of group 13(IIIA) elements into the matrix of a semiconductor to remove valence electrons from the valence band.

Answer 3

• P-type doping involves the addition of group 13(IIIA) elements into the matrix of a semiconductor to remove valence electrons from the valence band.