Question

Difference between metal insulator and semiconductor on the basis of band diagrams

Answer 1

Answer:

In insulators the electrons in the valence band are separated by a large gap from the conduction band, in conductors like metals the valence band overlaps the conduction band, and in semiconductors there is a small enough gap between the valence and conduction bands that thermal or other excitations can bridge the gap.

Answer 2

Answer:

The main difference between the conductor, semiconductor & insulator is in its conduction state. The conductors always conduct electric current while the insulators do no conduct. However, semiconductor conducts & blocks at different conditions.