1. Not finding help here? Sign up for a free 30min 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!

Calculate the Diffusion lengty

  1. Aug 13, 2013 #1
    I'm wondering how this actually can be solved since i think there is one piece missing.

    1. The problem statement, all variables and given/known data
    Determin the diffusion length L on a P+N diode with Nd = 10^16 cm^-3 in the N region.

    2. Relevant equations
    Known is that Diffusion length can be found from L=sqrt(Dt)

    3. The attempt at a solution
    As D = kT/q*u where u can be determined using a electron and hole mobility graph.
    But now how can i find t?
    It is not staded what t is.
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?

Similar Discussions: Calculate the Diffusion lengty
  1. Help with Diffusion (Replies: 0)

  2. Protein diffusion (Replies: 0)