Electrostatics> give reason why a p type semi conductor i...

give reason why a p type semi conductor is electrically neutral

VIJAY , 8 Years ago

Grade 12

4 Answers

Kartik

Last Activity: 8 Years ago

The holes or majority charge carrier in p type semiconductor are more in number in conduction band (not in semiconductor). That`s why the semiconductor is neutral. It depends on the concentration of electron or holes in conduction band to make p or n type semiconductor.

arunish kumar

Last Activity: 8 Years ago

It follows this simple equation: neutral + neutral= neutral.

In P type semiconductor, we simply replaced some silicon atoms and put some trivalent atoms(say Boron) in place of them.Now, in the process of doping, we take a NEUTRAL silicon crystal(solid) and induce some NEUTRAL Boron atoms( SINCE numbers of electrons equal to number of protons in Boron atom). So, the overall crystal we get i.e P type semiconductor is neutral.

Narendran

Last Activity: 8 Years ago

p and n type materials are NOT positively and negatively charged. An n-type material by itself has mainly negative charge carriers (electrons) which are able to move freely, but it is still neutral because the fixed donor atoms, having donated electrons, are positive.Similarly make it up yourselves for p type being electrically neutral.

Narendran

Last Activity: 8 Years ago

Let me take to another point of view. An n-type material by itself has mainly negative charge carriers (electrons) which are able to move freely, but it is still neutral because the fixed donor atoms, having donated electrons, are positive.Similarly make it up yourselves for p type being electrically neutral.