Assume we have a block of semiconductor at T=300K of length 1cm and cross-sectional area 1mm with Nc = N = 10cm and Ex-leV. If the material is doped with donors to a level of 106cm, then Now we apply a voltage of 3V across the length of the sample. (For simplicity, you can assume that the mobility and diffusivity curves for this semiconductor are identical to those for silicon.) a) b) What current flows through the semiconductor at T-300K? What is the current if we raise the temperature to T=350K? Re-draw the band diagram with the voltage (T=300K). Estimate the scattering time, t, from the mobility. (For simplicity, the effective mass for both statistics and transport are identical.) d)