Question

What is the band occupancy of an intrinsic semiconductor at 0 K?

Options

• Both the valence band and the conduction band are empty.

• The valence band is full and the conduction band is empty.

• The valence band is empty and the conduction band is full.

• Both the valence band and the conduction band are full.

Answer 1

At 0 K, the valence band is full while the conduction band is empty. Without free electrons in the conduction band, the intrinsic semiconductor behaves like an insulator.