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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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Frohna, Kyle
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (35/35 displayed)
- 2024Multimodal operando microscopy reveals that interfacial chemistry and nanoscale performance disorder dictate perovskite solar cell stability
- 2024Integration of metal meshes as transparent conducting electrodes into perovskite solar cellscitations
- 2023The Electronic Disorder Landscape of Mixed Halide Perovskitescitations
- 2023Template Pore Size and A‐Site Cation Management Dictate Luminescence Efficiency, Stability, and Wavelength in Confined Perovskite Nanostructures
- 2023The Electronic Disorder Landscape of Mixed Halide Perovskites.
- 2023Methylammonium-free co-evaporated perovskite absorbers with high radiation and UV tolerance: an option for in-space manufacturing of space-PV?citations
- 2022An open-access database and analysis tool for perovskite solar cells based on the FAIR data principlescitations
- 2022Local nanoscale phase impurities are degradation sites in halide perovskitescitations
- 2022The Electronic Disorde Landscape of Mixed Halide Perovskitescitations
- 2022Local nanoscale phase impurities are degradation sites in halide perovskites.
- 2022In-Situ and Operando Multimodal Microscopy of Metal Halide Perovskite Optoelectronic Devices
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysics.
- 2022Manipulating Color Emission in 2D Hybrid Perovskites by Fine Tuning Halide Segregation: A Transparent Green Emitter.
- 2022Understanding performance limiting interfacial recombination in pin Perovskite solar cellscitations
- 2022Stabilized tilted-octahedra halide perovskites inhibit local formation of performance-limiting phases.
- 2022Overcoming nanoscale inhomogeneities in thin-film perovskites via exceptional post-annealing grain growth for enhanced photodetectioncitations
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysics
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysicscitations
- 2021An open-access database and analysis tool for perovskite solar cells based on the FAIR data principlescitations
- 2021Multimodal Microscale Imaging of Textured Perovskite-Silicon Tandem Solar Cells.citations
- 2021Multimodal Microscale Imaging of Textured Perovskite-Silicon Tandem Solar Cells.
- 2021Unraveling the varied nature and roles of defects in hybrid halide perovskites with time-resolved photoemission electron microscopycitations
- 2021Nanoscale chemical heterogeneity dominates the optoelectronic response of alloyed perovskite solar cellscitations
- 2021Stabilized tilted-octahedra halide perovskites inhibit local formation of performance-limiting phasescitations
- 2021Unraveling the varied nature and roles of defects in hybrid halide perovskites with time-resolved photoemission electron microscopy.
- 2021Proton radiation hardness of perovskite tandem photovoltaics
- 2021Manipulating Color Emission in 2D Hybrid Perovskites by Fine Tuning Halide Segregation: A Transparent Green Emittercitations
- 2020Unraveling the antisolvent dripping delay effect on the Stranski-Krastanov growth of CH3NH3PbBr3 thin films: a facile route for preparing a textured morphology with improved optoelectronic properties.
- 2020Proton Radiation Hardness of Perovskite Tandem Photovoltaicscitations
- 2020Structural and spectroscopic studies of a nanostructured silicon-perovskite interface.
- 2020Photodoping through local charge carrier accumulation in alloyed hybrid perovskites for highly efficient luminescencecitations
- 2020Proton radiation hardness of perovskite tandem photovoltaicscitations
- 2020Unraveling the antisolvent dripping delay effect on the Stranski-Krastanov growth of CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub> thin films: a facile route for preparing a textured morphology with improved optoelectronic propertiescitations
- 2019Charge-Carrier Recombination in Halide Perovskitescitations
- 2019Charge-Carrier Recombination in Halide Perovskites.
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article
Overcoming nanoscale inhomogeneities in thin-film perovskites via exceptional post-annealing grain growth for enhanced photodetection
Abstract
Antisolvent-assisted spin coating has been widely used for fabricating metal halide perovskite films with smooth and compact morphology. However, localized nanoscale inhomogeneities exist in these films owing to rapid crystallization, undermining their overall optoelectronic performance. Here, we show that by relaxing the requirement for film smoothness, outstanding film quality can be obtained simply through a post-annealing grain growth process without passivation agents. The morphological changes, driven by a vaporized methylammonium chloride (MACl)–dimethylformamide (DMF) solution, lead to comprehensive defect elimination. Our nanoscale characterization visualizes the local defective clusters in the as-deposited film and their elimination following treatment, which couples with the observation of emissive grain boundaries and excellent inter- and intragrain optoelectronic uniformity in the polycrystalline film. Overcoming these performance-limiting inhomogeneities results in the enhancement of the photoresponse to low-light (<0.1 mW cm–2) illumination by up to 40-fold, yielding high-performance photodiodes with superior low-light detection.