Figure 5
EIS result of DPP17 device.
(a) The contact and substrate resistance (RS, closed circles), the charge transfer resistance at counter electrode (RCE, open squares), the Warburg diffusion resistance (RElectrolyte, dotted line with open circles), the total series resistance (RAll,series, dash dotted line with closed triangles) of EL_I (black lines) and EL_Co (red lines) systems. (b) Charge transport resistance, (Rtrans, open circles), recombination resistance, (Rrec, closed circles) and chemical capacitance of the TiO2, (CChem, closed squares with dashed line) of EL_I (black lines) and EL_Co (red lines) based device under illumination of ~1 sun by LED plotted against the IR drop corrected potential. (c) Electron lifetime (τe, solid) and transport time (τtrans, dotted line) plotted against the DOS.
