1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help with solid state problems

  1. Jul 4, 2003 #1
    I had to pass an exam of solid state but i had some doubts with this problems

    a)let be a pure semiconductor in two dimensions then they ask you for the density of electrons....would you use the formula

    n**2=Nc*Pv*Exp(-Eg/K2T) ?...

    another question is to obtain the density of holes in the valence band..what is the expresion?.

    b)g(e)=g(e1)*g(e2) then *= is + (summed) or X (multiplication)

    c)How varies the density of states with pressure?..will the width of the g(e) increase or decrease?..

    hope someone can help..
  2. jcsd
  3. Jul 9, 2003 #2

    Tom Mattson

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Moving to Physics.
  4. Jul 10, 2003 #3
    It might help if you defined the symbols a bit further. What is Pv or Nc..
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Help with solid state problems
  1. Solid State Physics (Replies: 0)