Why are electrons repelled from a positive charge in a semi-conductor?

Subject: Why are electrons repelled from a positive charge in a semi-conductor?

Date: Wed Jul 19 12:46:26 2000
Posted by Bilal Bhatti
Grade level: undergrad School: Thr Ravensbourne School
City: Bromley State/Province: Kent Country: UK
Area of science: Chemistry
ID: 964025186.Ch

Message:


In a semi-conductor, electrons in the n-type part are repelled from the 
positive particles in the same band. Electrons from the p-type band move 
up to replace the 'holes' caused by the previous electrons, therefore 
causing a current. Why are the electrons repelled from the positive 
particles in the n-type, when they should be attracted to them??

Re: Why are electrons repelled from a positive charge in a semi-conductor?

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