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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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Galkowski, Krzysztof
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Polaronic Mass Enhancement and Polaronic Excitons in Metal Halide Perovskitescitations
- 2023Strongly Confined CsPbBr3 Quantum Dots as Quantum Emitters and Building Blocks for Rhombic Superlatticescitations
- 2023Strongly Confined CsPbBr3 Quantum Dots as Quantum Emitters and Building Blocks for Rhombic Superlattices.
- 2023Strongly confined CsPbBr 3 quantum dots as quantum emitters and building blocks for rhombic superlatticescitations
- 2022Local nanoscale phase impurities are degradation sites in halide perovskitescitations
- 2022Local nanoscale phase impurities are degradation sites in halide perovskites.
- 2021Proton radiation hardness of perovskite tandem photovoltaics
- 2021Local Energy Landscape Drives Long-Range Exciton Diffusion in Two-Dimensional Halide Perovskite Semiconductors.
- 2020Proton Radiation Hardness of Perovskite Tandem Photovoltaicscitations
- 2017Impact of microstructure on the electron-hole interaction in lead halide perovskitescitations
- 2017Magneto-optical and microscopic properties of organo lead halide perovskites ; Propriétés magnéto-optiques et microscopiques de perovskites organique-halogénure de plomb
- 2017The Impact of Phase Retention on the Structural and Optoelectronic Properties of Metal Halide Perovskites.
- 2016The Impact of Phase Retention on the Structural and Optoelectronic Properties of Metal Halide Perovskitescitations
- 2016The Impact of Phase Retention on the Structural and Optoelectronic Properties of Metal Halide Perovskites.
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article
Impact of microstructure on the electron-hole interaction in lead halide perovskites
Abstract
Despite the remarkable progress in the performance of devices based onthe lead halide perovskite semiconductor family, there is still a lackof consensus on their fundamental photophysical properties. Here, usingmagneto-optical transmission spectroscopy we elucidate the impact of themicrostructure on the Coulomb interaction between photo-createdelectron–hole pairs in methylammonium lead triiodide (MAPbI<sub>3</sub>) and the triple-cation lead mixed-halide composition, Cs<sub>0.05</sub>(MA<sub>0.17</sub>FA<sub>0.83</sub>)<sub>0.95</sub>Pb(I<sub>0.83</sub>Br<sub>0.17</sub>)<sub>3</sub>(Cs: cesium, MA: methylammonium, FA: formamidinium) by investigatingthin films with a wide range of grain sizes from tens of nanometers tomicrons. At low temperatures, in which thermal fluctuations of theinteractions are frozen and the rotational disorder of the organiccation is negligible, the exciton binding energy and reduced effectivemass of carriers remain effectively unchanged with grain size. Weconclude that the microstructure plays a negligible role in the Coulombinteraction of the photo-created electron–hole pairs, in contrast toprevious reports. This renewed understanding of the relationship betweenthese fundamental electronic properties and the microstructure iscritical for future fundamental studies and improving device design.