M
Matthias Bräuninger
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 13
Citations - 1744
Matthias Bräuninger is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Perovskite (structure) & Silicon. The author has an hindex of 8, co-authored 13 publications receiving 1307 citations. Previous affiliations of Matthias Bräuninger include École Normale Supérieure & University of Würzburg.
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Journal ArticleDOI
Fully textured monolithic perovskite/silicon tandem solar cells with 25.2% power conversion efficiency.
Florent Sahli,Jérémie Werner,Brett A. Kamino,Matthias Bräuninger,Raphael Monnard,Bertrand Paviet-Salomon,Loris Barraud,Laura Ding,Juan J. Diaz Leon,Davide Sacchetto,Gianluca Cattaneo,Matthieu Despeisse,Mathieu Boccard,Sylvain Nicolay,Quentin Jeangros,Bjoern Niesen,Christophe Ballif +16 more
TL;DR: An optimized two-step deposition process allows the formation of uniform layers of metal halide perovskites on textured silicon layers, enabling tandem silicon/perovskite solar cells with improved optical design and efficiency.
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Efficient Near-Infrared-Transparent Perovskite Solar Cells Enabling Direct Comparison of 4-Terminal and Monolithic Perovskite/Silicon Tandem Cells
Jérémie Werner,Loris Barraud,Arnaud Walter,Matthias Bräuninger,Florent Sahli,Davide Sacchetto,Nicolas Tétreault,Bertrand Paviet-Salomon,Soo-Jin Moon,Christophe Allebe,Matthieu Despeisse,Sylvain Nicolay,Stefaan De Wolf,Bjoern Niesen,Christophe Ballif +14 more
TL;DR: In this article, a 1 cm2 near-infrared transparent perovskite solar cell with 14.5% steady-state efficiency was presented, as compared to 16.4% on 0.25 cm2.
Journal ArticleDOI
Improved Optics in Monolithic Perovskite/Silicon Tandem Solar Cells with a Nanocrystalline Silicon Recombination Junction
Florent Sahli,Brett A. Kamino,Jérémie Werner,Matthias Bräuninger,Bertrand Paviet-Salomon,Loris Barraud,Raphael Monnard,Johannes P. Seif,Andrea Tomasi,Quentin Jeangros,Quentin Jeangros,Aïcha Hessler-Wyser,Stefaan De Wolf,Matthieu Despeisse,Sylvain Nicolay,Bjoern Niesen,Christophe Ballif +16 more
TL;DR: In this article, an improved recombination junction based on nanocrystalline silicon layers was proposed for monolithic perovskite/silicon tandem cells with a planar front side.
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Complex Refractive Indices of Cesium–Formamidinium-Based Mixed-Halide Perovskites with Optical Band Gaps from 1.5 to 1.8 eV
Jérémie Werner,Gizem Nogay,Florent Sahli,Terry Chien-Jen Yang,Matthias Bräuninger,Gabriel Christmann,Arnaud Walter,Brett A. Kamino,Peter Fiala,Philipp Löper,Sylvain Nicolay,Quentin Jeangros,Bjoern Niesen,Christophe Ballif +13 more
TL;DR: In this article, variable-angle spectroscopic ellipsometry was used to determine complex refractive indices for perovskite/silicon tandem solar cells with optical band gaps ranging from 1.5 to 1.8 eV.
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Temperature dependence of the conductivity of ballistic graphene
TL;DR: The temperature dependence of conductivity in ballistic graphene is investigated using Landauer transport theory and two kinds of Fabry-Perot oscillations in short nanoribbons and their stability at finite temperatures are discussed.