INTRINSIC VS EXTRINSIC

Properties

1 in intrinsic semiconductor the number density of electrons is equal to the numberdensity of holes

2 The electrical conductivity is low

3 The electrical conductivity of intinsic semiconductors depend on their temperatures.

Extrinsic

properties

1 in extrinsic semiconductor the number density of electrons is not equal to the number density of holes ne is not equal

2 the electrical conductivity is high

3 the electrical conductivity depends on the temperature and the amount of impurity added in them.