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Does n type doping decrease or increase the bandgap?

  1. Aug 19, 2015 #1
    I understand that a n type doping will increase the number of electrons, and those electrons will go to the conduction band since the valence band is already filled. I don't exactly understand the effect on the bandgap. Thanks!
  2. jcsd
  3. Aug 20, 2015 #2
    In dilute limit, neither n-type nor p-type doping would change the band gap. The effect of heavy doping on the band gap is not trivial to describe and is an active research topic.
  4. Aug 20, 2015 #3
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