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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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Chirvony, Vladimir
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Inkjet-Printed Red-Emitting Flexible LEDs Based on Sustainable Inks of Layered Tin Iodide Perovskitecitations
- 2024Waveguide Amplifiers and Lasers Based on FASnI3 Perovskite Thin Films
- 2024Inkjet‐Printed Red‐Emitting Flexible LEDs Based on Sustainable Inks of Layered Tin Iodide Perovskitecitations
- 2023Superradiance Emission and Its Thermal Decoherence in Lead Halide Perovskites Superlatticescitations
- 2023Superradiance Emission and Its Thermal Decoherence in Lead Halide Perovskites Superlatticescitations
- 2023Unusual Spectrally Reproducible and High Q-Factor Random Lasing in Polycrystalline Tin Perovskite Filmscitations
- 2023Lead-Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospectivecitations
- 2022Tin perovskite solar cells with >1,300 h of operational stability in N2 through a synergistic chemical engineering approachcitations
- 2022Continuous-Flow Synthesis of Orange Emitting Sn(II)-Doped CsBr Materialscitations
- 2022Suppressing the Formation of High n-Phase and 3D Perovskites in the Fabrication of Ruddlesden-Popper Perovskite Thin Films by Bulky Organic Cation Engineeringcitations
- 2022Directional and Polarized Lasing Action on Pb-free FASnI3 Integrated in Flexible Optical Waveguidecitations
- 2021Continuous‐Flow Synthesis of Orange Emitting Sn(II)‐Doped CsBr Materialscitations
- 2021Continuous-Flow Synthesis of Orange Emitting Sn(II)-Doped CsBr Materialscitations
- 2021Purcell Enhancement and Wavelength Shift of Emitted Light by CsPbI3 Perovskite Nanocrystals Coupled to Hyperbolic Metamaterialscitations
- 2021Inhomogeneous Broadening of Photoluminescence Spectra and Kinetics of Nanometer-Thick (Phenethylammonium)2PbI4 Perovskite Thin Films: Implications for Optoelectronicscitations
- 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>