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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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Cacovich, Stefania
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 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
- 2024Breaking 1.7 V Open Circuit Voltage in Large Area Transparent Perovskite Solar Cells Using Interfaces Passivationcitations
- 2024Slot‐Die Deposition of CuSCN Using Asymmetric Alkyl Sulfides as Cosolvent for Low‐Cost and Fully Scalable Perovskite Solar Cell Fabricationcitations
- 2024Breaking 1.7 V Open Circuit Voltage in Large Area Transparent Perovskite Solar Cells Using Interfaces Passivationcitations
- 2024Effect of Chlorine Inclusion in Wide Band Gap FAPbBr3 Perovskitescitations
- 2024Effect of Chlorine Inclusion in Wide Band Gap FAPbBr 3 Perovskitescitations
- 2023Degradation and Self-Healing of FAPbBr3 Perovskite under Soft-X-Ray Irradiationcitations
- 2023Influence of X-Ray Irradiation During Photoemission Studies on Halide Perovskite-Based Devicescitations
- 2023Degradation and Self‐Healing of FAPbBr 3 Perovskite under Soft‐X‐Ray Irradiationcitations
- 2023Humidity‐Induced Degradation Processes of Halide Perovskites Unveiled by Correlative Analytical Electron Microscopycitations
- 2023Breaking 1.7V open circuit voltage in large area transparent perovskite solar cells using bulk and interfaces passivation.citations
- 2023The Impact of X‐Ray Radiation on Chemical and Optical Properties of Triple‐Cation Lead Halide Perovskite: from the Surface to the Bulkcitations
- 2022Wide bandgap halide perovskite absorbers for semi-transparent photovoltaics: From theoretical design to modulescitations
- 2022In – depth chemical and optoelectronic analysis of triple-cation perovskite thin films by combining XPS profiling and PL Imagingcitations
- 2021Mapping Transport Properties of Halide Perovskites via Short-Time-Dynamics Scaling Laws and Subnanosecond-Time-Resolution Imagingcitations
- 2021Dynamic temperature effects in perovskite solar cells and energy yieldcitations
- 2021Carrier gradients and the role of charge selective contacts in lateral heterojunction all back contact perovskite solar cellscitations
- 2021Nanometric Chemical Analysis of Beam-Sensitive Materials: A Case Study of STEM-EDX on Perovskite Solar Cells.
- 2021In – depth chemical and optoelectronic analysis of triple-cation perovskite thin films by combining XPS profiling and PL Imagingcitations
- 2020Light-Induced Passivation in Triple Cation Mixed Halide Perovskites: Interplay between Transport Properties and Surface Chemistrycitations
- 2019Quantitative optical assessment of photonic and electronic properties in halide perovskitecitations
- 2018Maximizing and stabilizing luminescence from halide perovskites with potassium passivationcitations
- 2018Maximizing and stabilizing luminescence from halide perovskites with potassium passivationcitations
- 2018Maximizing and stabilizing luminescence from halide perovskites with potassium passivation
- 2018Potassium- and Rubidium-Passivated Alloyed Perovskite Films: Optoelectronic Properties and Moisture Stability.
- 2015Interface and Composition Analysis on Perovskite Solar Cells.
- 2015Interface and Composition Analysis on Perovskite Solar Cellscitations
- 2015Local Versus Long-Range Diffusion Effects of Photoexcited States on Radiative Recombination in Organic-Inorganic Lead Halide Perovskites.
Places of action
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article
Fine tuning of Nb-incorporated TiO2 thin films by atomic layer deposition and application as efficient electron transport layer in perovskite solar cells
Abstract
<jats:p>Access to finely tuned thin films that can act as electron transport layer (ETL) and adapt to the absorber composition and whole cell fabrication process is key to achieve efficient perovskite-based solar cells. In this study, the growth of mixed niobium-titanium oxide (Nb-TiO2) thin films by atomic layer deposition and its use to extract photogenerated electrons is reported. Films were obtained at 200 °C from titanium (IV) i-propoxide, (t-butylimido)tris(diethylamido)niobium(V), and water by introducing Nb2O5 growth cycle in a TiO2 matrix. Process parameters (order of precursor introduction, cycle ratio) were optimized; the growth mechanism and the effective Nb incorporation were investigated by an in situ quartz crystal microbalance and x-ray photoelectron spectroscopy. The composition, morphology, structural, and optoelectronic properties of the as-deposited films were determined using a variety of characterization techniques. As a result, a fine control of the film properties (between TiO2 and Nb2O5 ones) could be achieved by tuning Nb content. To allow a successful implementation in solar devices, a comprehensive annealing study under several conditions (temperatures, various atmospheres) was conducted leading to an evolution of the optical properties due to a morphological change. Ultimately, the incorporation of these 15 nm-thick films in mesoscopic perovskite solar cells as ETL shows an improvement of the cell performances and of their stability with increasing Nb content, in comparison of both TiO2 and Nb2O5 pure compounds, reaching power conversion efficiency up to 18.3% and a stability above 80% of its nominal value after 138 h under illumination.</jats:p>