1. skhurramshehzad

    Thread Starter New Member

    Sep 29, 2010
    1
    0
    Hi everyone.
    i have a question about formation of p-type and n-type semiconductor.
    1)why we use trivalent impurity in order to form p-type semiconductor??? we can use divalent impurity, due to which there form two holes and semiconductor will conduct more.
    2)why we use pentavalent impurity in order to fom n-type semicnoductor???? we can use hexavalent, due to which there form two free electrons and semiconductor will conduct more.
     
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