Prévia do material em texto

Step 1 of 3 3.021P Consider the current is directly proportional to the square of the carrier concentration Iₛ a Calculate the intrinsic carrier density at T = 300K Here, B is a material dependent parameter, is bandgap k is Boltzmann's constant. Substitute 7.3 for 1.12 eV for 1 8.62 10⁻⁵ eV/K for k and 300 K for T in the equation. = Calculate the value of Step 2 of 3 Calculate the intrinsic carrier density at T = Substitute for 1.12 eV for E₈ 1 8.62 10⁻⁵ eV/K for k and 305 K for T in the equation. =(3.8884x10*)(5.6173x10*) = Calculate the value of Step 3 of 3 Determine the value of the factor by which changes as T changes from 300 K to 305 K. =2.1 Thus, the value of factor by which intrinsic carrier density and the current, Iₛ changes as the temperature changes from 300 K to 305 K is 2.1