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Semiconductor intrinsic Fermi Level? Bandgap Energy?

  1. Oct 15, 2015 #1
    http://ecee.colorado.edu/~bart/book/book/chapter2/ch2_6.htm#2_6_2
    equation (2.6.24)

    eq2_6_24.gif

    we have this equation for fermi level, but I wonder how this works though?
    In the lecture, we assumed Ec=Eg and Ev=0 to get E_gap/2.

    but I wonder how (Ec+Ev)/2 actually gives E_gap/2 instead of Ec-Ev=Eg
     
  2. jcsd
  3. Oct 15, 2015 #2
    It was a stupid question. sorry.
     
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