Figure 2. Numerically simulated RPV transients in the case of (a) dispersive transport caused by shallow traps, and (b) film charging caused by deep traps.

(a) In the case of dispersive transport, the extraction “shoulders” approximately correspond to the mean charge carrier mobility. (b) In the case of deep traps, the film becomes charged and the magnitude of the RPV transient is reduced in subsequent shots of the laser, but the transit “shoulder” remains unhindered which allows for reliable charge carrier mobility estimation.