Figure 2
(a) Simulated modulation frequency dependence of the real and imaginary parts of the modulated photocurrent. (b) Simulated temporal evolution of the photocurrent. The dashed lines are guides to the eye. The results in panel (a,b) are obtained from the same set of the physical constants including T = 300 K and T0 = 400 K. The red arrows indicate the frequency used to calculate the transit time in panel (a) and the transit time itself in panel (b). (c) Comparison between the mobilities determined with the MPC and TOF techniques from the photocurrent responses simulated with various T0’s. In the last panel, 0 < T0 < 300 K corresponds to the non-dispersive conduction mode, and the dashed line represents a slope of 1.
