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Band gap at semiconductors

  1. Jul 21, 2015 #1
    Can anybody explain my what is the origin of this forbidden gap?

    I mean how it was created and what is the physics behind this issue?
  2. jcsd
  3. Jul 21, 2015 #2
  4. Jul 21, 2015 #3
    There isnt a real explanation there for the phenomenon as I have asked. i didn't ask what is it.
  5. Jul 21, 2015 #4
    I am also looking for a good explanations for bloch functions and beriluen zone..why we have it and what is the meaning...

    And the last issue I am interested in what are the determination rules in quantum dots ( I mean spectroscopic rules)?
  6. Jul 21, 2015 #5
    The band gap exists because there are no solutions to the Schrodinger equation for that range of energies.
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