Difference Between Intrinsic and Extrinsic Semiconductors

Here in this post, we will try to explain the basic difference between intrinsic and extrinsic semiconductors. The two types of semiconductor materials are intrinsic and extrinsic semiconductors. Intrinsic semiconductors vary from extrinsic semiconductors in that they are the purest form of semiconductor materials. On the other hand, extrinsic semiconductors are impure semiconductors created by mixing an impurity with a pure semiconductor.
The following table will explain the main difference between intrinsic and extrinsic semiconductors more precisely.

Let's dig in.

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Semiconductors and Insulators

Intrinsic Semiconductor	Extrinsic Semiconductor
Pure semiconductor	Impure semiconductor
The density of electrons is equal to the density of holes	The density of electrons is not equal to the density of holes
Electrical conductivity is low	Electrical conductivity is high
Dependence on temperature only	Dependence on temperature as well as on the amount of impurity
No impurities	Trivalent impurity, pentavalent impurity

Difference Between Intrinsic and Extrinsic Semiconductors