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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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Collin, Stéphane
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Quantitative assessment of selenium diffusion and passivation in CdSeTe solar cells probed by spatially resolved cathodoluminescencecitations
- 2023Humidity‐Induced Degradation Processes of Halide Perovskites Unveiled by Correlative Analytical Electron Microscopycitations
- 2021Imaging CdCl 2 defect passivation and formation in polycrystalline CdTe films by cathodoluminescencecitations
- 2020Erbium-doped oxide for optical gain on hybrid silicon photonics platforms (Student Paper)
- 2020Backside light management of 4-terminal bifacial perovskite/silicon tandem PV modules evaluated under realistic conditionscitations
- 2019Development of reflective back contacts for high-efficiency ultrathin Cu(In,Ga)Se2 solar cellscitations
- 2017Coupling Optical and Electrical Modelling for the study of a-Si:H-based nanowire Array Solar Cellscitations
- 2017Coupling Optical and Electrical Modelling for the study of a-Si:H-based nanowire Array Solar Cellscitations
- 2017Cathodoluminescence mapping for the determination of n-type doping in single GaAs nanowires
- 2017Cathodoluminescence mapping for the determination of n-type doping in single GaAs nanowires
- 2017Interface dipole and band bending in the hybrid p − n heterojunction Mo S 2 / GaN ( 0001 )citations
- 2017Interface dipole and band bending in the hybrid p − n heterojunction Mo S 2 / GaN ( 0001 )citations
- 2016Ultrathin Epitaxial Silicon Solar Cells with Inverted Nanopyramid Arrays for Efficient Light Trappingcitations
- 2015Ultrathin nanostructured c-Si solar cells by low temperature and scalable processes
- 2013Multi-resonant absorption in ultra-thin silicon solar cells with metallic nanowirescitations
- 2013Multi-resonant absorption in ultra-thin silicon solar cells with metallic nanowirescitations
- 2013Metal–dielectric bi-atomic structure for angular-tolerant spectral filteringcitations
- 20123D modeling of metamaterials at oblique incidence and effective analysis
- 20123D modeling of metamaterials at oblique incidence and effective analysis
- 2012Nanopatterned front contact for broadband absorption in ultra-thin amorphous silicon solar cellscitations
- 2012Nanopatterned front contact for broadband absorption in ultra-thin amorphous silicon solar cellscitations
Places of action
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article
Humidity‐Induced Degradation Processes of Halide Perovskites Unveiled by Correlative Analytical Electron Microscopy
Abstract
International audience ; Abstract Improving the stability of lead halide perovskite solar cells (PSCs) for industrialization is currently a major challenge. It is shown that moisture induces changes in global PSC performance, altering the nature of the absorber through phase transition or segregation. Understanding how the material evolves in a wet environment is crucial for optimizing device performance and stability. Here, the chemical and structural evolution of state‐of‐the‐art hybrid perovskite thin‐film Cs 0.05 (MA 0.15 FA 0.85 ) 0.95 Pb(I 0.84 Br 0.16 ) 3 (CsMAFA) is investigated after aging under controlled humidity with analytical characterization techniques. The analysis is performed at different scales through Photoluminescence, X‐ray Diffraction Spectroscopy, Cathodoluminescence, Selected Area Electron Diffraction, and Energy Dispersive X‐ray Spectroscopy. From the analysis of the degradation products from the perovskite layer and by the correlation of their optical and chemical properties at a microscopic level, different phases such as lead–iodide (PbI 2 ), inorganic mixed halide CsPb(I 0.9 Br 0.1 ) 3 and lead‐rich CsPb 2 (I 0.74 Br 0.26 ) 5 perovskite are evidenced. These phases demonstrate a high degree of crystallinity that induces unique geometrical shapes and drastically affects the optoelectronic properties of the thin film. By identifying the precise nature of these specific species, the multi‐scale approach provides insights into the degradation mechanisms of hybrid perovskite materials, which can be used to improve PSC stability.