Johannes Hepp

Printed semi-transparent large area organic photovoltaic modules with power conversion efficiencies of close to 5 %

Luca Lucera, Florian Machui, H. D. Schmidt et al. · Organic Electronics · 2017 · 58 citations

Materials Science, Electrical Engineering, Power Conversion Efficiencies +11

Photoluminescence for Defect Detection on Full-Sized Photovoltaic Modules

Bernd Doll, Johannes Hepp, Mathis Hoffmann et al. · IEEE Journal of Photovoltaics · 2021 · 58 citations

Engineering, Photovoltaic Devices, Photovoltaic System +16

How dry was the Younger Dryas? Evidence from a coupled <i>δ</i> ² H– <i>δ</i> ¹⁸ O biomarker paleohygrometer applied to the Gemündener Maar sediments, Western Eifel, Germany

Johannes Hepp, Lorenz Wüthrich, Tobias Bromm et al. · Climate of the past · 2019 · 37 citations · Full text

Reconstructing lake evaporation history and the isotopic composition of precipitation by a coupled δ18O–δ2H biomarker approach

Johannes Hepp, Mario Tuthorn, Roland Zech et al. · Journal of Hydrology · 2014 · 35 citations

Hydrometeorology, Biogeochemistry, Engineering +7

Late Quaternary relative humidity changes from Mt. Kilimanjaro, based on a coupled 2H-18O biomarker paleohygrometer approach

Johannes Hepp, Roland Zech, Kazimierz Różański et al. · Quaternary International · 2017 · 33 citations

Climatology, Engineering, Drylands +6