Kirill Zilberberg, Sara Trost, Jens Meyer, Antoine Kahn, Andreas Behrendt, Dirk Lützenkirchen-Hecht, Ronald Frahm and Thomas Riedl Inverted Organic Solar Cells with Sol–Gel Processed High Work-Function Vanadium Oxide Hole-Extraction Layers Advanced Functional Materials 21
Inverted organic solar cells employing a solution processed V2O5 (sV2O5) hole-extraction-layer on top of the active organic layer are demonstrated. Even without any post-deposition treatment, the electronic structure of the sV2O5 layers is similar to that of thermally evaporated V2O5 (eV2O5) layers which have been exposed to ambient air. Optimized devices with sV2O5 layers show power conversion efficiencies similar to that of devices with eV2O5 layers.
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