Question Detail
Question
Which of the following is not true about doping of semiconductor?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Let's evaluate each statement:A. Doping with group III elements (like Boron) creates acceptor impurities, which accept electrons and create holes, leading to p-type semiconductors. This statement is true.B. Doping with group V elements (like Phosphorus) creates donor impurities, which donate electrons, leading to n-type semiconductors. This statement is true.C. Group III elements are acceptors. They create a 'hole' in the valence band for an electron to jump into, hence creating excess holes in the valency band. This statement is true.D. Group V elements are donors. They have an extra valence electron that is loosely bound and can easily move into the conduction band, thus leading to excess electrons in the conduction band, not holes. Therefore, this statement is not true.
Hint
Understand the role of Group III (acceptor) and Group V (donor) elements in doping and their impact on carrier concentration in p-type and n-type semiconductors.