Publication
Large-Scale Simulations of a-Si:H: The Origin of Midgap States Revisited
Related publications (33)
Scalable Quantum Algorithms for Noisy Quantum Computers
Quantum computing not only holds the potential to solve long-standing problems in quantum physics, but also to offer speed-ups across a broad spectrum of other fields. Access to a computational space that incorporates quantum effects, such as superposition ...
EPFL2024Signatures of a sampling quantum advantage in driven quantum many-body systems
A crucial milestone in the field of quantum simulation and computation is to demonstrate that a quantum device can perform a computation task that is classically intractable. A key question is to identify setups that can achieve such goal within current te ...
IOP Publishing Ltd2023SiNx and AlOx Nanolayers in Hole Selective Passivating Contacts for High Efficiency Silicon Solar Cells
Audrey Marie Isabelle Morisset, Xinya Niu
The recombination of photogenerated charge carriers at metal-semiconductor interfaces remains a major source of efficiency loss in photovoltaic cells. Here, we present SiNx and AlOx nanolayers as promising interface dielectrics to enable high efficiency ho ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Carrier-selective contacts using metal compounds for crystalline silicon solar cells
Mathieu Gérard Boccard, Julie Amandine Dreon
Solar cells rely on the efficient generation of electrons and holes and the subsequent collection of these photoexcited charge carriers at spatially separated electrodes. High wafer quality is now commonplace for crystalline silicon (c-Si) based solar cell ...
WILEY2022Linking simulation and synthesis of nickel oxide hole-selective contacts for silicon heterojunction solar cells
Christophe Ballif, Mathieu Gérard Boccard, Jan Haschke, Angela Nicole Fioretti, Rachel Emma Woods-Robinson
In silicon heterojunction (SHJ) solar cells, one factor limiting efficiency is "parasitic absorption" from amorphous silicon (a-Si) at the front surface. Thus, discovery of a transparent hole-selective contact to replace p-type a-Si is a promising area of ...
IEEE2020Toward Annealing-Stable Molybdenum-Oxide-Based Hole-Selective Contacts For Silicon Photovoltaics
Christophe Ballif, Jonas Geissbühler, Mathieu Gérard Boccard, Stefaan De Wolf, Monica Morales Masis, Jérémie Werner, Philipp Friedrich Hermann Löper, Oscar Esteban Rucavado Leandro, Julie Amandine Dreon, Stephanie Essig
Molybdenum oxide (MoOX) combines a high work function with broadband optical transparency. Sandwiched between a hydrogenated intrinsic amorphous silicon passivation layer and a transparent conductive oxide, this material allows a highly efficient hole‐sele ...
2018Aluminium metallisation for interdigitated back-contact silicon heterojunction solar cells
Back-contact silicon heterojunction solar cells with an efficiency of 22% were manufactured, featuring a simple aluminium metallisation directly on the doped amorphous silicon films. Both the open-circuit voltage and the fill factor heavily depend on the p ...
Iop Publishing Ltd2017Strategies for Doped Nanocrystalline Silicon Integration in Silicon Heterojunction Solar Cells
Christophe Ballif, Aïcha Hessler-Wyser, Antoine Descoeudres, Jonas Geissbühler, Stefaan De Wolf, Gizem Nogay, Martial Duchamp, Johannes Peter Seif, Simon Hänni, Martin Ledinsky, Niels Holm
Carrier collection in silicon heterojunction (SHJ) solar cells is usually achieved by doped amorphous silicon layers of a few nanometers, deposited at opposite sides of the crystalline silicon wafer. These layers are often defect-rich, resulting in modest ...
Ieee-Inst Electrical Electronics Engineers Inc2016