Doped Heterojunction Used in Quantum Dot Sensitized Solar Cell
Figure 5
(a) IPCE spectra for four devices; (b) EIS spectra of QDSSCs measured in the dark at −0.4 V bias voltages. The inset illustrates the equivalent circuit simulated. Rrec and CPE1 represent the charge transfer resistance and capacitance at TiO2/electrolyte interface, respectively; is a series resistance.