ITO-Free Semitransparent Organic Solar Cells Based on Silver Thin Film Electrodes
Figure 5
The wavelength-dependent transmittance spectra of ITO-free semitransparent OSCs with different thickness combination of Ca and Ag as the cathodes. For comparison, the transmittance spectrum of the stack MoO3 (2 nm)/Ag (9 nm)/MoO3 (10 nm)/P3HT:PCBM (the device without the cathode) is also depicted in Figure 5. Bottom illumination from the anode side is applied for measurement.
