Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers

<div>Wavelength-dependent transmittance spectra of ITO, ITO/ZnO annealed in air, ITO/ZnO annealed in N<sub>2</sub>, and ITO/PEDOT:PSS.</div>

International Journal of Photoenergy

Figure 6: Stable Inverted Low-Bandgap Polymer Solar Cells with Aqueous Solution Processed Low-Temperature ZnO Buffer Layers 