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Homework Help: IV diode charateristic, Find constant A , Urgent

  1. Mar 23, 2008 #1
    1. The problem statement, all variables and given/known data

    this is a lab task, i have found out the IV characteristic of the diode,

    now they ask me to suggest a procedure to find the constant A, in the equation
    I= AT^3 x exp (-E/ kT),
    T being the temperature, and I = saturation current

    2. Relevant equations

    i know how to find ideality factor fron the the IV graph, but can I find 'A' from the IV graph ?
    If not, then what other test equipment and procedures do i need to find 'A' ?
    Is 'A' related to the intrinsic carrier concentration in any way?

    its very urgent, so i ll really appreciate a prompt reply.
    thanks :)
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
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