At the beginning of June Juliane was invited to speak at the International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO25) taking place at the University of Cagliari in Sardinia. A great opportunity to represent the group and for scientific exchange with others researchers in a delightful setting. Many thanks to theContinue reading “NIPHO Conference 2025”
Author Archives: borchertlab
New Paper: Photostable Inorganic Perovskite Absorber via Thermal Evaporation for Monolithic Perovskite/Perovskite/Silicon Triple-Junction Solar Cells
We are pleased to announce our latest research advancement demonstrating, for the first time, the successful monolithic integration of an all-inorganic perovskite top cell into a perovskite/perovskite/silicon triple-junction solar cell. In this work, we report the fabrication of CsPbI₂Br perovskite films using thermal co-evaporation at room temperature, completely eliminating the need for any post-deposition annealingContinue reading “New Paper: Photostable Inorganic Perovskite Absorber via Thermal Evaporation for Monolithic Perovskite/Perovskite/Silicon Triple-Junction Solar Cells”
New Paper: Tuning Self-Assembly of Hole-Selective Monolayers for Reproducible Perovskite/Silicon Tandem Solar Cells
Controlling the thickness and orientation of hole-selective self-assembled monolayers (SAMs) has long posed a challenge in the field of perovskite-based solar cells. In our most recent publication, we employ in situ angle-resolved X-ray photoelectron spectroscopy to examine the impact of annealing temperature on the thickness and orientation of the prototypical 2PACz. Our results demonstrate thatContinue reading “New Paper: Tuning Self-Assembly of Hole-Selective Monolayers for Reproducible Perovskite/Silicon Tandem Solar Cells”
New Paper: Reducing Losses in 3J Solar Cells
High open-circuit voltage (VOC) is a key advantage of two-terminal triple-junction solar cells, as the voltages from individual sub-cells add up. To fully harness this potential, it is crucial to identify and minimize voltage losses in each sub-cell. In this study, we identified the high-bandgap perovskite top cell as the primary source of VOC lossContinue reading “New Paper: Reducing Losses in 3J Solar Cells”
New paper: Efficient fully textured perovskite silicon tandems with thermally evaporated hole transporting materials
Fully textured perovskite-silicon tandem solar cells are revolutionizing the solar industry by offering higher efficiency and compatibility with existing silicon production lines. However, for these advanced cells to reach commercial markets, scalable manufacturing methods are essential, not just for the perovskite layers but for all functional components. One crucial layer is the hole transport layerContinue reading “New paper: Efficient fully textured perovskite silicon tandems with thermally evaporated hole transporting materials”
Master Thesis Topics in Perovskite Solar cell research
Perovskite based solar cells have in the last years become a dynamic research field which promises to change the way we will produce electricity in the future. In our research group we work on the deposition of perovskite thin films and their use in solar cells especially tandem solar cells. We are a team ofContinue reading “Master Thesis Topics in Perovskite Solar cell research”
New Paper: Tuning Perovskite Crystal Growth Dynamics Using Additives on Textured Silicon Substrates
Perovskite silicon tandem solar cells hold an immense promise as a new emerging technology as they showed efficiencies that broke the single junction limit. Growing conformal perovskite thin film layer on top of textured Si substrates in the micron range can add a lot of benefits as the deposition happens on the current state ofContinue reading “New Paper: Tuning Perovskite Crystal Growth Dynamics Using Additives on Textured Silicon Substrates”
New Paper: Impact of Perovskite Subcell Breakdown on the Performance of Perovskite/Perovskite/Silicon Triple-Junction Solar Cells
With the impressive advancement in perovskite based dual-junction solar cells over the past decade, perovskite based triple-junction solar cells are now getting more attention. However, this technology is relatively new and therefore several challenges need to be tackled to unlock its full potential. A two-terminal multi-junction solar cell in general is subjected to current mismatch-inducedContinue reading “New Paper: Impact of Perovskite Subcell Breakdown on the Performance of Perovskite/Perovskite/Silicon Triple-Junction Solar Cells”
New Paper- Tailoring perovskite crystallization and interfacial passivation in efficient, fully textured perovskite silicon tandem solar cells
Fully textured perovskite silicon tandem solar cells rely on the deposition of the perovskite absorber on textured silicon with a >1 μm pyramid size, which represents the current standard in the industry. To bridge the gap between research and industry, these cells must demonstrate a high power output. Nevertheless, perovskite absorbers deposited on large pyramids oftenContinue reading “New Paper- Tailoring perovskite crystallization and interfacial passivation in efficient, fully textured perovskite silicon tandem solar cells”
In the press- “A Physicist who likes to build bridges”
The local Freiburg paper “Badische Zeitung” profiled Juliane Borchert on their science page.
The Borchert Lab 