If we increase the temperature then the more no of electrons get the energy to jump from conduction band to valence band , thereby increase the conduction of the semiconductor .
Semiconductors :
In the semiconductor the energy gap between the valence band and the conduction band is small . this small energy gap allows some electrons to move from the valence band to the conduction band . thus the semiconductor conduct electricity and conductivity increases with increase in temperature .
There are two type of semiconductor : intrinsic semiconductor and extrinsic semiconductor .
Pure semiconducting substances are called intrinsic semiconductor .
The semiconductor obtained by doping are called extrinsic semiconductors.
Extrinsic semiconductor are of two types : n-type semiconductor and p-type semiconductor .
n-type semiconductor is due to metal excess defect and p-type semiconductor is due to metal deficiency defect .
Semiconductors are used in transistors , photo-electric devices and rectifiers .
Learn more about semiconductors here :
brainly.com/question/15844033
#SPJ4
