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What is the charge on P type Semiconductor intially ??

and Why

Nitin Sharma , 12 Years ago
Grade Upto college level
anser 1 Answers
Ashish Kumar

In any extrinsic semiconductor whether P or N type the the total charge is zero , ie, it electrically neutral.Suppose in case of p-type semiconductor in  which Si  is doped with Boron(which has 3 valence electrons).Both Si and B are electrically neutral to begin with.

When bonds are formed between them Becuase of 1 electron being less than 4 of Si there is excess of holes in the material for conduction.But there is also on electron of Si for every hole of B.So totally the P-type is electrically neutral

 

 

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Last Activity: 12 Years ago
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