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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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Bouttemy, Muriel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Fine tuning of Nb-incorporated TiO2 thin films by atomic layer deposition and application as efficient electron transport layer in perovskite solar cellscitations
- 2024Fine tuning of Nb-incorporated TiO2 thin films by atomic layer deposition and application as efficient electron transport layer in perovskite solar cellscitations
- 2024Doped SnO 2 thin films fabricated at low temperature by atomic layer deposition with a precise incorporation of niobium atomscitations
- 2023Influence of X-Ray Irradiation During Photoemission Studies on Halide Perovskite-Based Devicescitations
- 2023Elucidating Interfacial Limitations Induced by Tin Oxide Electron Selective Layer Grown by Atomic Layer Deposition in N−I−P Perovskite-Based Solar Cellscitations
- 2023The Impact of X‐Ray Radiation on Chemical and Optical Properties of Triple‐Cation Lead Halide Perovskite: from the Surface to the Bulkcitations
- 2022In – depth chemical and optoelectronic analysis of triple-cation perovskite thin films by combining XPS profiling and PL Imagingcitations
- 2022(Invited, Digital Presentation) Outstanding Contributions of Liquid Ammonia on III-V Semiconductors (Photo)-Electrochemistry
- 2021Chemical Passivation with Phosphonic Acid Derivatives of ZnO Deposited by Atomic Layer Deposition and Its Influence on the Halide Perovskite Interfacecitations
- 2021Carrier gradients and the role of charge selective contacts in lateral heterojunction all back contact perovskite solar cellscitations
- 2021In – depth chemical and optoelectronic analysis of triple-cation perovskite thin films by combining XPS profiling and PL Imagingcitations
- 2021The influence of relative humidity upon Cu(In,Ga)Se2 thin-film surface chemistry: an X-ray photoelectron spectroscopy studycitations
- 2020Light-Induced Passivation in Triple Cation Mixed Halide Perovskites: Interplay between Transport Properties and Surface Chemistrycitations
- 2019Laser ablation of n-PERT silicon solar cells for metallization issues: understanding the mechanism to enhance performances
- 2019Investigation of dielectric layers laser ablation mechanism on n-PERT silicon solar cells for (Ni) plating process: Laser impact on surface morphology, composition, electrical properties and metallization qualitycitations
- 2019Optimization of Ni/Cu Plating Process for Silicon Solar Cells through Understanding of Underlying Electrochemical Reaction Mechanisms
- 2019Cu depletion on Cu(In,Ga)Se2 surfaces investigated by chemical engineering: An x-ray photoelectron spectroscopy approachcitations
- 2018New insights on the chemistry of plasma-enhanced atomic layer deposition of indium oxysulfide thin films and their use as buffer layers in Cu(In,Ga)Se2 thin film solar cellcitations
- 2018Multitechnique investigation of sulfur phases in the corrosion product layers of iron corroded in long-term anoxic conditions: From micrometer to nanometer scale
- 2018New insights on the chemistry of plasma-enhanced atomic layer deposition of indium oxysulfide thin films and their use as buffer layers in Cu(In,Ga)Se 2 thin film solar cellcitations
- 2018The Evaluation of the Perturbations Induced By Ionic Bombardment on Surfaces: A Challengefor Interfacial Electrochemistry
- 2017The Role of Oxygen in the Degradation of Methylammonium Lead Trihalide Perovskite Photoactive Layers
- 2016Influence of iron corrosion on nuclear glass alteration processes: nanoscale investigations of the iron-containing phases
Places of action
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conferencepaper
The Role of Oxygen in the Degradation of Methylammonium Lead Trihalide Perovskite Photoactive Layers
Abstract
Perovskite materials have already proven their ability to reach photo-electric power conversion efficiencies higher than 22% in appropriate devices. If their instability against time could be solved, they could quickly compete with silicon since they benefit from low-cost manufacturing processes. Our work is dedicated to this stability study using the benefit of X-ray Photoelectron Spectroscopy (XPS) as a main tool, and coupled with XRD and SEM-EDX analysis. Using XPS, it is possible to track the surface (10 nm) changes the perovskite undergoes, in terms of both composition and chemical environments, and is therefore efficient towards understanding the first steps of the degradation process. At first, samples of spin-coated thin-film perovskite without capping on the top (glass/ITO/PEDOT:PSS/MAPI), were aged in different conditions (light with air and vacuum respectively), and analyzed using XPS at different times. The figure below presents the survey spectrum obtained for a fresh sample, and shows that all the expected elements can be identified with this spectrometry method. Starting from an initial known composition, the results obtained reveal interesting changes the material undergoes during the ageing. For example, it was observed that both nitrogen and iodine gradually escape the surface, and also, that metallic lead is observed in the final stages of the degradation process. Then, other currently ongoing experiments are designed to highlight the influence of oxygen and light as previously mentioned , but also to disentangle the influence of the bottom layers on the ageing. This will certainly provide other innovative results on the mechanisms governing the perovskite degradation.