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Homework Help: State densities of a semiconductor

  1. Aug 14, 2010 #1
    1. The problem statement, all variables and given/known data

    Having some trouble with the following equation, I'm not sure what each term represents.

    The problem I have is does c,v have something to do with conduction and valence? But what is N and m? And what does it mean when terms are seperated by a comma?

    2. Relevant equations

    Nc,v = 2 ((2[tex]\pi[/tex]mc,vKT)/(h^2))


    3. The attempt at a solution

    From what I gather;

    K=Boltmann's constant
    T=Temperature
    h=Planck's constant
    Nc,v=?????????
    mc,v=?????????
     
  2. jcsd
  3. Aug 14, 2010 #2
    Please use latex, since I am guessing the "c,v" are subscripts. In that case you are right about conduction and valence. N is the number of energy levels in either the conduction or valence band (basically density of states) and m is the mass of the carrier.
     
  4. Aug 14, 2010 #3
    Sorry, i'll make sure I use latex in future.

    That's cleared things up for me. Thank you.
     
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