| 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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Trizio, Luca De
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Exogenous Metal Cations in the Synthesis of CsPbBr3 Nanocrystals and Their Interplay with Tertiary Aminescitations
- 2023Light Emission from Low‐Dimensional Pb‐Free Perovskite‐Related Metal Halide Nanocrystalscitations
- 2023Lead‐Free Halide Perovskite Materials and Optoelectronic Devices: Progress and Prospectivecitations
- 2022One Hundred-Nanometer-Sized CsPbBr3/m-SiO2 Composites Prepared via Molten-Salts Synthesis are Optimal Green Phosphors for LCD Display Devicescitations
- 2022Exploiting the Transformative Features of Metal Halides for the Synthesis of CsPbBr3@SiO2 Core-Shell Nanocrystalscitations
- 2020Transforming colloidal Cs4PbBr6 nanocrystals with poly(maleic anhydride-alt-1-octadecene) into stable CsPbBr3 perovskite emitters through intermediate heterostructurescitations
- 2020Developing Lattice Matched ZnMgSe Shells on InZnP Quantum Dots for Phosphor Applicationscitations
- 2020Cs3Cu4In2Cl13 Nanocrystalscitations
- 2019Stable Ligand Coordination at the Surface of Colloidal CsPbBr3 Nanocrystalscitations
- 2018Colloidal Synthesis of Double Perovskite Cs2AgInCl6 and Mn-Doped Cs2AgInCl6 Nanocrystalscitations
- 2018Ab initio structure determination of Cu2- xTe plasmonic nanocrystals by precession-assisted electron diffraction tomography and HAADF-STEM imagingcitations
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article
Stable Ligand Coordination at the Surface of Colloidal CsPbBr3 Nanocrystals
Abstract
<p>Ruling over the surface chemistry of metal halide perovskite nanocrystals (NCs) is crucial to access reliable luminophores. Here, we provide an atomic-level description of the surface of colloidal CsPbBr<sub>3</sub> NCs, achieving an effective passivation strategy that leads to near-unity photoluminescence quantum yield. To this end, we used two different types of CsPbBr<sub>3</sub> NCs, which had been synthesized with an outer shell of either oleylammonium bromide ion pairs or Cs-oleate complexes. We perturbed the dynamic equilibria at the NCs' surface with ligands from a comprehensive library, including amines (and their conjugated acids) with different basicities, chain lengths, and steric encumbrances. We demonstrate that control of both ligand binding affinity and ligand-to-NC molar ratio is essential to attain thermodynamically stable coordination of the NC surface. We thus present a reliable protocol for managing the surface chemistry of colloidal CsPbBr<sub>3</sub> NCs and for selectively addressing their ligand-induced morphological (and structural) transformations.</p>