Difference between Conductor Semiconductor Insulator

 

Difference between Conductor Semiconductor Insulator

In this topic we will discuss about the difference between Conductor, Semiconductor, Insulator. Firstly we will explain the definition of  Conductor, Semiconductor, Insulator.

Conductor

Conductors are the types of material which  allow to pass the electric current or electric charge through them called as conductors. In conductor energy gap between valence and conduction band is 0eV. E.g. of conductors are Copper, Aluminium etc. 

  • Resistivity of conductor is very low
  • Conductivity of conductor is very high.
  • Conductor contains metallic bonds.
  • With increase in temperature conductivity of conductors reduced.
  • Forbidden energy gap of conductor is 0eV.



Semiconductor

Semiconductor are the types of material whose conductivity lies between conductors and insulators. We can also say that semiconductor allow electric charge to pass through them after achieving their breakdown voltage. In conductor energy gap between valence and conduction band is 1eV E.g. Silicon, Germanium.

  • Resistivity of semiconductor is lies between conductor and insulator.
  • Conductivity of semiconductor is lies between conductor and insulator.
  • Semiconductor contains covalent bonds.
  • With Increase in temperature conductivity of semiconductor is increased.
  • Forbidden energy gap of conductor is 1eV.

Insulators

Insulators are the type of material which doesn’t allow electric current to pass through them. In conductor energy gap between valence and conduction band is 5eV E.g. of insulators are PVC, Polyethene.

  • Resistivity of insulator is very high.
  • Conductivity of insulator is very low.
  • Insulator contains ionic bonds.
  • With Increase in temperature conductivity of insulator is also increased.
  • Forbidden energy gap of conductor is 5eV.

So these are the basic difference between the Conductor, Semiconductor ,Insulator.


          



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