| 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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Pashaei Adl, Hamid
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Origin of discrete donor–acceptor pair transitions in 2D Ruddlesden–Popper perovskitescitations
- 2024Origin of discrete donor–acceptor pair transitions in 2D Ruddlesden–Popper perovskitescitations
- 2024Waveguide Amplifiers and Lasers Based on FASnI3 Perovskite Thin Films
- 2023Superradiance Emission and Its Thermal Decoherence in Lead Halide Perovskites Superlatticescitations
- 2023Superradiance Emission and Its Thermal Decoherence in Lead Halide Perovskites Superlatticescitations
- 2023Enhanced spontaneous emission of CsPbI3 perovskite nanocrystals using a hyperbolic metamaterial modified by dielectric nanoantennacitations
- 2021Homogeneous and inhomogeneous broadening in single perovskite nanocrystals investigated by micro-photoluminescencecitations
- 2021Purcell Enhancement and Wavelength Shift of Emitted Light by CsPbI3 Perovskite Nanocrystals Coupled to Hyperbolic Metamaterialscitations
- 2021Manipulation of emitted light by structured lead halide perovskite nanocrystals for photonics applications
- 2020Interpretation of the photoluminescence decay kinetics in metal halide perovskite nanocrystals and thin polycrystalline filmscitations
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article
Superradiance Emission and Its Thermal Decoherence in Lead Halide Perovskites Superlattices
Abstract
<jats:title>Abstract</jats:title><jats:p>Self‐assembled nanocrystals (NCs) into superlattices (SLs) are alternative materials to polycrystalline films and single crystals, which can behave very differently from their constituents, especially when they interact coherently with each other. This work concentrates on the Superradiance (SR) emission observed in SLs formed by CsPbBr<jats:sub>3</jats:sub> and CsPbBrI<jats:sub>2</jats:sub> NCs. Micro‐Photoluminescence spectra and transients in the temperature range 4–100 K are measured in SLs to extract information about the SR states and uncoupled domains of NCs. For CsPbBr<jats:sub>3</jats:sub> SLs with mostly homogeneous SR lines (linewidth 1–5 meV), this work measures lifetimes as short as 160 ps, 10 times lower than the value measured in a thin film made with the same NCs, which is due to domains of near identical NCs formed by 1000 to 40 000 NCs coupled by dipole–dipole interaction. The thermal decoherence of the SR exciton state is evident above 25 K due to its coupling with an effective phonon energy of ≈8 meV. These findings are an important step toward understanding the SR emission enhancement factor and the thermal dephasing process in perovskite SLs.</jats:p>