Question

Carrier concentration and conductivity in intrinsic semiconductor

Answer 1

Conductivity of an intrinsic semiconductor depends upon the concentration of electrons in the conduction bands.

When temperature is increased from room temperature then electrons jumps from valance band to conduction bond. The generation of electron carriers concentration in conduction band is equal to production of hole carriers concentration in valance bands. Hence, Conductivity can be increased by increasing electrons in the conduction band.