| People | Locations | Statistics |
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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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Herz, Lm
University of Oxford
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2025Structural and electronic features enabling delocalized charge-carriers in CuSbSe 2citations
- 2024In situ nanoscopy of single-grain nanomorphology and ultrafast carrier dynamics in metal halide perovskitescitations
- 2024Contrasting ultra-low frequency Raman and infrared modes in emerging metal halides for photovoltaicscitations
- 2024Disentangling the effects of structure and lone-pair electrons in the lattice dynamics of halide perovskitescitations
- 2024Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cellscitations
- 2024Unraveling loss mechanisms arising from energy‐level misalignment between metal halide perovskites and hole transport layerscitations
- 2023Exciton Formation Dynamics and Band‐Like Free Charge‐Carrier Transport in 2D Metal Halide Perovskite Semiconductorscitations
- 2023Atomistic understanding of the coherent interface between lead iodide perovskite and lead iodidecitations
- 2023Exciton formation dynamics and band-like free charge-carrier transport in 2D metal halide perovskite semiconductorscitations
- 2023Bandlike transport and charge-carrier dynamics in BiOI filmscitations
- 2023Chloride‐Based Additive Engineering for Efficient and Stable Wide‐Bandgap Perovskite Solar Cellscitations
- 2023Contrasting charge-carrier dynamics across key metal-halide perovskite compositions through in situ simultaneous probescitations
- 2023A templating approach to controlling the growth of coevaporated halide perovskitescitations
- 2022Thermally stable perovskite solar cells by all-vacuum depositioncitations
- 2022Solvent-free method for defect reduction and improved performance of p-i-n vapor-deposited perovskite solar cellscitations
- 2022Understanding and suppressing non-radiative losses in methylammonium-free wide-bandgap perovskite solar cellscitations
- 2022Air-degradation mechanisms in mixed lead-tin halide perovskites for solar cellscitations
- 2022Excellent long-range charge-carrier mobility in 2D perovskitescitations
- 2022Optoelectronic properties of mixed iodide-bromide perovskites from first-principles computational modeling and experimentcitations
- 2021Nanotechnology for catalysis and solar energy conversioncitations
- 2021Revealing ultrafast charge-carrier thermalization in tin-iodide perovskites through novel pump-push-probe terahertz spectroscopycitations
- 2021Chemical control of the dimensionality of the octahedral network of solar absorbers from the CuI-AgI-BiI3 phase space by synthesis of 3D CuAgBiI5citations
- 2021Highly absorbing lead-free semiconductor Cu2AgBiI6 for photovoltaic applications from the quaternary CuI-AgI-BiI3 phase spacecitations
- 2021Impact of tin fluoride additive on the properties of mixed tin-lead iodide perovskite semiconductorscitations
- 2021Ultrafast excited-state localization in Cs2AgBiBr6 double perovskitecitations
- 2021Efficient energy transfer mitigates parasitic light absorption in molecular charge-extraction layers for perovskite solar cellscitations
- 2021Limits to electrical mobility in lead-halide perovskite semiconductorscitations
- 2021Charge-carrier mobility and localization in semiconducting CU2AGBiI6 for photovoltaic applicationscitations
- 2021Highly Absorbing Lead-Free Semiconductor Cu₂AgBiI₆ for Photovoltaic Applications from the Quaternary CuI-AgI-BiI₃ Phase Space
- 2021Polarons and charge localization in metal-halide semiconductors for photovoltaic and light-emitting devicescitations
- 2020Charge‐carrier trapping and radiative recombination in metal halide perovskite semiconductorscitations
- 2020Charge-carrier trapping dynamics in bismuth-doped thin films of MAPbBr3 perovskitecitations
- 2020Terahertz Conductivity Analysis for Highly Doped Thin-Film Semiconductorscitations
- 2020Metal composition influences optoelectronic quality in mixed-metal lead-tin triiodide perovskite solar absorberscitations
- 2020Terahertz conductivity analysis for highly doped thin-film semiconductorscitations
- 2020CsPbBr3 nanocrystal films: deviations from bulk vibrational and optoelectronic propertiescitations
- 2020Control over crystal size in vapor deposited metal-halide perovskite filmscitations
- 2020Atomic-scale microstructure of metal halide perovskitecitations
- 2017Near-Infrared and short-wavelength infrared photodiodes based on dye-perovskite compositescitations
- 2017Crystallization kinetics and morphology control of formamidinium-cesium mixed-cation lead mixed-halide perovskite via tunability of the colloidal precursor solutioncitations
Places of action
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article
Atomic-scale microstructure of metal halide perovskite
Abstract
<jats:p>Hybrid organic-inorganic perovskites have high potential as materials for solar energy applications, but their microscopic properties are still not well understood. Atomic-resolution scanning transmission electron microscopy has provided invaluable insights for many crystalline solar cell materials, and we used this method to successfully image formamidinium lead triiodide [CH(NH<jats:sub>2</jats:sub>)<jats:sub>2</jats:sub>PbI<jats:sub>3</jats:sub>] thin films with a low dose of electron irradiation. Such images reveal a highly ordered atomic arrangement of sharp grain boundaries and coherent perovskite/PbI<jats:sub>2</jats:sub> interfaces, with a striking absence of long-range disorder in the crystal. We found that beam-induced degradation of the perovskite leads to an initial loss of formamidinium [CH(NH<jats:sub>2</jats:sub>)<jats:sub>2</jats:sub><jats:sup>+</jats:sup>] ions, leaving behind a partially unoccupied perovskite lattice, which explains the unusual regenerative properties of these materials. We further observed aligned point defects and climb-dissociated dislocations. Our findings thus provide an atomic-level understanding of technologically important lead halide perovskites.</jats:p>