Figure 6
Capacitive extraction-current transients of P3HT devices is plotted as (a) (j/j 0 )−2 and (b) (j/j 0 )−3 vs applied voltage, for 0.2 wt % and 0.4 wt % dopants, where d = 300 nm. In this case the carrier profile is linearly increasing and a linear dependence can be seen in (b) in accordance with Eq. (12). The red lines in (a and b) are guides to the eye representing a straight line. In (c) the corresponding charge carrier profile is shown as a function of the depletion layer width.
