| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Petrozza, Annamaria
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024How Photogenerated I 2 Induces I-Rich Phase Formation in Lead Mixed Halide Perovskitescitations
- 2024Stabilizing Single‐Source Evaporated Perovskites with Organic Interlayers for Amplified Spontaneous Emissioncitations
- 2024Mutual Destabilization of Wide Bandgap Perovskite and PbI<sub>2</sub> Inclusions through Interface Carrier Trappingcitations
- 2024Electron Spectroscopy and Microscopy: A Window into the Surface Electronic Properties of Polycrystalline Metal Halide Perovskitescitations
- 2024How Photogenerated I2 Induces I-Rich Phase Formation in Lead Mixed Halide Perovskitescitations
- 2024Understanding the Surface Chemistry of Tin Halide Perovskitescitations
- 2023Defect Engineering to Achieve Photostable Wide Bandgap Metal Halide Perovskitescitations
- 2023How Photogenerated I2 Induces I‐rich Phase Formation in Lead Mixed Halide Perovskitescitations
- 2023X‐Ray Nanoanalysis Revealing the Role of Electronically Active Passivation Layers in Perovskite X‐Ray film Detectorscitations
- 2023Tuning Structure and Excitonic Properties of 2D Ruddlesden–Popper Germanium, Tin, and Lead Iodide Perovskites via Interplay between Cationscitations
- 2023How Halide Alloying Influences the Optoelectronic Quality in Tin-Halide Perovskite Solar Absorberscitations
- 2023Structural effects on the luminescence properties of CsPbI 3 nanocrystalscitations
- 2022Photoluminescence Intensity Enhancement in Tin Halide Perovskitescitations
- 2021Coordinating Solvent-Assisted Synthesis of Phase-Stable Perovskite Nanocrystals with High Yield Production for Optoelectronic Applicationscitations
- 2021Moisture resistance in perovskite solar cells attributed to a water-splitting layercitations
- 2021High‐Sensitivity Flexible X‐Ray Detectors based on Printed Perovskite Inkscitations
- 2020Colourful luminescence of metal halide perovskites – from fundamentals to applicationscitations
- 2020Humidity-robust scalable metal halide perovskite film deposition for photovoltaic applicationscitations
- 2019Controlling competing photochemical reactions stabilizes perovskite solar cellscitations
- 2019Defect activity in lead halide perovskitescitations
- 2018Iodine chemistry determines the defect tolerance of lead-halide perovskitescitations
- 2018Interfacial Morphology Addresses Performance of Perovskite Solar Cells Based on Composite Hole Transporting Materials of Functionalized Reduced Graphene Oxide and P3HTcitations
- 2017Migration of cations induces reversible performance losses over day/night cycling in perovskite solar cellscitations
- 2016Photoinduced emissive trap states in lead halide perovskite semiconductorscitations
- 2015Improving the long-term stability of perovskite solar cells with a porous Al2O3 buffer-layercitations
- 2015Role of microstructure in the electron–hole interaction of hybrid lead halide perovskitescitations
- 2015Improving the Long-Term Stability of Perovskite Solar Cells with a Porous Al O Buffer Layercitations
- 2014Lead-free organic–inorganic tin halide perovskites for photovoltaic applicationscitations
Places of action
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article
Improving the long-term stability of perovskite solar cells with a porous Al2O3 buffer-layer
Abstract
Hybrid perovskites represent a new paradigm for photovoltaics, which have the potential to overcome the performance limits of current technologies and achieve low cost and high versatility. However, an efficiency drop is often observed within the first few hundred hours of device operation, which could become an important issue. Here, we demonstrate that the electrode’s metal migrating through the hole transporting material (HTM) layer and eventually contacting the perovskite is in part responsible for this early device degradation. We show that depositing the HTM within an insulating mesoporous “buffer layer” comprised of Al2O3 nanoparticles prevents the metal electrode migration while allowing for precise control of the HTM thickness. This enables an improvement in the solar cell fill factor and prevents degradation of the device after 350 h of operation.