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Semiconductor problems, help needed!

  1. Sep 27, 2005 #1

    Silicon at T=300k contains acceptor impurity atoms at a density of Na=7*10^15 cm^-3. Determine Ef - Ev.

    My solution:

    By using the formula Ef -Ev= KT ln(Nv/Na) fermi energy type I had trouble computing this formula due to not having the value of Nv. So, I would appreciate if anyone who has the know how to help me obtain Nv?
  2. jcsd
  3. Sep 27, 2005 #2
  4. Sep 27, 2005 #3
    Thanx so much.
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