Organic photovoltaics with V2O5 anode and ZnO nanoparticles cathode buffer layers

We report the hybrid inorganic–organic photovoltaics incorporating vanadium pentoxide (V2O5) as hole and zinc oxide (ZnO) nanoparticles (NPs) as electron extraction layers. This device demonstrates high open circuit voltage of about 0.89 V with considerably high short-circuit current density of 10.13 mA/cm2 along with fill factor of about 61.03%. Combining all these parameters, the power conversion efficiency is 5.53% which is higher compared to that (3.6%) of the cell without ZnO NPs.

Graphical abstractImproved open-circuit voltage with ZnO nanoparticles cathode buffer layer.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► OPV devices with and without ZnO nanoparticles are compared. ► All layers are coated from solution process. ► ZnO nanoparticles device exhibits higher PCE (5.53%) compared its counterpart.