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  • Can someone help me with this, In a junction diode, the holes are due to

In a junction diode, the holes are due to

  • Option 1)

    Protons
     

  • Option 2)

     Neutrons
     

  • Option 3)

    Extra electrons

  • Option 4)

    Missing of electrons

 

Answers (1)

best_answer

 

p - type semiconductor -

Here the base semiconductor (i.e.pure Si or Ge ) is mixed with tetravalent doping material (e.g. Al )

- wherein

1) nh >>ne

2) There is an acceptor level just above  the valence band .

 

 

n - type semiconductor -

Here the base semiconductor (e.g. pure Si or Ge) is mixed with pentavalent doping material

(e.g. Phosphorous)

- wherein

1) ne >>nh

2) There is donor energy level between valence band and conduction band. Just below conduction band.

 

 Holes are nothing but absence of electron from its position.


Option 1)

Protons
 

Incorrect

Option 2)

 Neutrons
 

Incorrect

Option 3)

Extra electrons

Incorrect

Option 4)

Missing of electrons

Correct

Posted by

Aadil

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