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  1. Article

    Open Access

    Open-circuit voltage of organic solar cells: interfacial roughness makes the difference

    Organic photovoltaics (PV) is an energy-harvesting technology that offers many advantages, such as flexibility, low weight and cost, as well as environmentally benign materials and manufacturing techniques. De...

    Carl Poelking, Johannes Benduhn, Donato Spoltore, Martin Schwarze… in Communications Physics (2022)

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    Article

    Emissive and charge-generating donor–acceptor interfaces for organic optoelectronics with low voltage losses

    Intermolecular charge-transfer states at the interface between electron donating (D) and accepting (A) materials are crucial for the operation of organic solar cells but can also be exploited for organic light...

    Sascha Ullbrich, Johannes Benduhn, **angkun Jia, Vasileios C. Nikolis… in Nature Materials (2019)

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    Article

    Intrinsic non-radiative voltage losses in fullerene-based organic solar cells

    Organic solar cells demonstrate external quantum efficiencies and fill factors approaching those of conventional photovoltaic technologies. However, as compared with the optical gap of the absorber materials, ...

    Johannes Benduhn, Kristofer Tvingstedt, Fortunato Piersimoni… in Nature Energy (2017)