Sylvio Schubert, Martin Hermenau, Jan Meiss, Lars Müller-Meskamp and Karl Leo Oxide Sandwiched Metal Thin-Film Electrodes for Long-Term Stable Organic Solar Cells Advanced Functional Materials 22
A stable semitransparent thin silver top contact for organic solar cells is fabricated by sandwiching it between thermally evaporated MoO3 layers. By using a MoO3 interlayer, the morphology of the Ag electrode is improved, leading to better charge collection. The sandwich increases the electrode transmittance, photocurrent generation, and lifetime. With this, more efficient solar cells with lifetimes of 4500 h are achieved.
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