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Ok i just want to make sure I got this. I'm also new at this..
P-type semiconductor material has large number of, Positive charge or Negative charge?
According to my understanding I would go with positive charge am I right??
"Hole" flow basically got invented because electron flow is opposite conventional current flow (pos to neg). "Hole" flow is in the direction of conventional current.
When you have N-type doping, there are "extra" electrons, making the overall charge more negative (hence the 'N'). On the other hand, when you have P-type doping, there are "not enough" electrons, making the overall charge more positive ('P').
I have to take issue with the above statement. Both N-type and P-type materal are electrical neutral overall. They both have the same number of electrons to balance the number of protons. A electrometer will not detect any charge on them. Only their crystalline structure is different.
DerStrom8,
Agreed. It is the crystalline structure that is perturbed or out of balance, not the atoms themselves.
Ratch
I'm actually disappointed that all you other folks answered the question I posed about holes. It was intended for the O.P., in what I thought could have been a "teachable moment". Instead, you fell all over yourselves trying to show how much you know.