Question

The concepts of holes is introduced based on

• A. the notion that it is a whole lot easier to keep track of the missing particles in an "almost-full" band
• B. the keeping track of the actual electrons in that band
• C. the charge of holes
• D. none of the above

Answer 1

The correct option is A the notion that it is a whole lot easier to keep track of the missing particles in an "almost-full" band

The concept of holes was introduced so as to occupy the empty spaces left by the missing electron. For example, in a valence band, when an electron jumps from valence to conduction band, an empty space is created in valence band which is occupied by a hole.