Electron concentration in semiconductor

Discussion in 'Homework Help' started by boks, Oct 20, 2009.

  1. boks

    Thread Starter Active Member

    Oct 10, 2008
    The room-temperature electrical conduuctivity of a silicon specimen isn 500(Omega-m)^-1. The hole concentration is known to be 2.0E22 m^-3. Ele electron and hole mobilities are 0.14 and 0.05 m^2/V-s, respectively. What is the electron concentration?

    (Answer: 2.97E20/m^3)

    Which equation should I use?