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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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Ebel, Thomas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Tuning surface defect states in sputtered titanium oxide electron transport layers for enhanced stability of organic photovoltaicscitations
- 2024Tuning surface defect states in sputtered titanium oxide electron transport layers for enhanced stability of organic photovoltaicscitations
- 2024Tuning Surface Defect States in Sputtered Titanium Oxide Electron Transport Layers for Enhanced Stability of Organic Photovoltaicscitations
- 2024Processability of Mg-Gd Powder via Friction Extrusioncitations
- 2024Improvement of corrosion resistance of PEO coated dissimilar Ti/Mg0.6Ca couplecitations
- 2024Improvement of corrosion resistance of PEO coated dissimilar Ti/Mg0.6Ca couplecitations
- 2024Surfactant-Modified Nanocomposite Thin-Film Capacitors
- 2024Developing Novel Self Healable Capacitor Materials with Improved Thermostability
- 2023Additive manufacturing of materials with embedded electrically conductive paths and their applications
- 2023Additive manufacturing of materials with embedded electrically conductive paths and their applications
- 2023The role of electron extinction in the breakdown strength of nanocomposite capacitors
- 2023The role of electron extinction in the breakdown strength of nanocomposite capacitors
- 2023High-oxygen MIM Ti-6Al-7Nb ::microstructure, tensile and fatigue propertiescitations
- 2023Power Capacitors – state of the art technology review and an outlook into the future
- 2023Nanoscale thinning of metal-coated polypropylene films by Helium-ion irradiation
- 2023Nanoscale thinning of metal-coated polypropylene films by Helium-ion irradiation
- 2022Theory of electrical breakdown in a nanocomposite capacitorcitations
- 2022Theory of electrical breakdown in a nanocomposite capacitorcitations
- 2022Layer-by-layer printable nano-scale polypropylene for precise control of nanocomposite capacitor dielectric morphologies in metallised film capacitorscitations
- 2022Layer-by-layer Printed Dielectrics
- 2022Theoretical investigation of the nanoinclusions shape impact on the capacitance of a nanocomposite capacitorcitations
- 2022Theoretical investigation of the nanoinclusions shape impact on the capacitance of a nanocomposite capacitorcitations
- 2022The effects of oxygen on the fatigue behaviour of MIM Ti-6Al-7Nb alloy
- 2022Fundamental understanding of the influence of oxygen on the fatigue behaviour of To-6Al-7Nb alloys
- 2022How to determine the capacitance of a nanocomposite capacitorcitations
- 2022How to determine the capacitance of a nanocomposite capacitorcitations
- 2022Layer-by-layer Printed Dielectrics:Scalable Nanocomposite Capacitor Fabrication for the Green Transition
- 2021Superior fatigue endurance exempt from high processing cleanliness of Metal-Injection-Molded β Ti-Nb-Zr for bio-tolerant applicationscitations
- 2020Influence of alloying elements in fatigue properties of α/β Titanium alloyscitations
- 2015The effect of zirconium addition on sintering behaviour, microstructure and creep resistance of the powder metallurgy processed alloy Ti–45Al–5Nb–0.2B–0.2Ccitations
- 2001Magnetic properties of rare-earth transition metal aluminides R6T4Al43 with Ho6Mo4Al43-type structurecitations
Places of action
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article
Tuning surface defect states in sputtered titanium oxide electron transport layers for enhanced stability of organic photovoltaics
Abstract
<p>Nonfullerene acceptors (NFAs) have dramatically improved the power conversion efficiency (PCE) of organic photovoltaics (OPV) in recent years; however, their device stability currently remains a bottleneck for further technological progress. Photocatalytic decomposition of nonfullerene acceptor molecules at metal oxide electron transport layer (ETL) interfaces has in several recent reports been demonstrated as one of the main degradation mechanisms for these high-performing OPV devices. While some routes for mitigating such degradation effects have been proposed, e.g., through a second layer integrated on the ETL surface, no clear strategy that complies with device scale-up and application requirements has been presented to date. In this work, it is demonstrated that the development of sputtered titanium oxide layers as ETLs in nonfullerene acceptor based OPV can lead to significantly enhanced device lifetimes. This is achieved by tuning the concentration of defect states at the oxide surface, via the reactive sputtering process, to mitigate the photocatalytic decomposition of NFA molecules at the metal oxide interlayers. Reduced defect state formation at the oxide surface is confirmed through X-ray photoelectron spectroscopy (XPS) studies, while the reduced photocatalytic decomposition of nonfullerene acceptor molecules is confirmed via optical spectroscopy investigations. The PBDB-T:ITIC organic solar cells show power conversion efficiencies of around 10% and significantly enhanced photostability. This is achieved through a reactive sputtering process that is fully scalable and industry compatible.</p>