| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Baranov, Dmitry
Lund University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Exogenous Metal Cations in the Synthesis of CsPbBr3 Nanocrystals and Their Interplay with Tertiary Aminescitations
- 2024Exogenous Metal Cations in the Synthesis of CsPbBr3 Nanocrystals and Their Interplay with Tertiary Aminescitations
- 2023Collective Diffraction Effects in Perovskite Nanocrystal Superlatticescitations
- 2022Exploiting the Transformative Features of Metal Halides for the Synthesis of CsPbBr3@SiO2 Core-Shell Nanocrystalscitations
- 2022Highly Emitting Perovskite Nanocrystals with 2-Year Stability in Water through an Automated Polymer Encapsulation for Bioimagingcitations
- 2021Detection of Pb2+traces in dispersion of Cs4PbBr6 nanocrystals by in situ liquid cell transmission electron microscopycitations
- 2021Structure and Surface Passivation of Ultrathin Cesium Lead Halide Nanoplatelets Revealed by Multilayer Diffractioncitations
- 2021Metamorphoses of Cesium Lead Halide Nanocrystalscitations
- 2021Exploiting the Transformative Features of Metal Halides for the Synthesis of CsPbBr3@SiO2 Core–Shell Nanocrystalscitations
- 2020Superlattices are greener on the other sidecitations
- 2020Transforming colloidal Cs4PbBr6 nanocrystals with poly(maleic anhydride-alt-1-octadecene) into stable CsPbBr3 perovskite emitters through intermediate heterostructurescitations
- 2020Cs 3 Cu 4 In 2 Cl 13 Nanocrystals:A Perovskite-Related Structure with Inorganic Clusters at A Sitescitations
- 2020Cs3Cu4In2Cl13 Nanocrystalscitations
- 2019Purification of Oleylamine for Materials Synthesis and Spectroscopic Diagnostics for trans Isomerscitations
- 2019Fully Inorganic Ruddlesden-Popper Double Cl-I and Triple Cl-Br-I Lead Halide Perovskite Nanocrystalscitations
- 2018Colloidal Synthesis of Double Perovskite Cs2AgInCl6 and Mn-Doped Cs2AgInCl6 Nanocrystalscitations
- 2018Colloidal Synthesis of Double Perovskite Cs2AgInCl6 and Mn-Doped Cs2AgInCl6 Nanocrystalscitations
- 2007Synthesis of cerium oxide nanoparticles in polyethylene matrixcitations
- 2006Optical properties of cadmium sulfide nanoparticles on the surface of polytetrafluoroethylene nanogranulescitations
- 2006Cobalt-containing core-shell nanoparticles on the surface of poly(tetrafluoroethylene) microgranulescitations
- 2006Copper nanoparticles on the surface of ultradispersed polytetrafluoroethylene nanograinscitations
- 2006New magnetic materials based on cobalt and iron-containing nanopariclescitations
- 2005Synthesis and structure of polyethylene-matrix composites containing zinc oxide nanoparticlescitations
Places of action
| Organizations | Location | People |
|---|
article
Exploiting the Transformative Features of Metal Halides for the Synthesis of CsPbBr3@SiO2 Core-Shell Nanocrystals
Abstract
The encapsulation of colloidal lead halide perovskite nanocrystals within silica (SiO<sub>2</sub>)is one of the strategies to protect them from polar solvents and otherexternal factors. Here, we demonstrate the overcoating of CsPbBr<sub>3</sub> perovskite nanocrystals with silica by exploiting the anhydride-induced transformation of Cs<sub>4</sub>PbBr<sub>6</sub> nanocrystals. CsPbBr<sub>3</sub>@SiO<sub>2</sub> core–shell nanocrystals are obtained after (i) a reaction between colloidal Cs<sub>4</sub>PbBr<sub>6</sub> nanocrystals and maleic anhydride in toluene that yields CsPbBr<sub>3</sub> nanocrystals and maleamic acid and (ii) a silica-shell growth around CsPbBr<sub>3</sub> nanocrystals via hydrolysis of added alkoxysilanes. The reaction between Cs<sub>4</sub>PbBr<sub>6</sub>nanocrystals and maleic anhydride is necessary to promote shellformation from alkoxysilanes, as demonstrated in control experiments.The best samples of as-prepared CsPbBr<sub>3</sub>@SiO<sub>2</sub> nanocrystals consist of ∼10 nm single-crystal CsPbBr<sub>3</sub>cores surrounded by ∼5–7 nm amorphous silica shell. Despite theircore–shell structure, such nanostructures are poor emitters and degradewithin minutes of exposure to ethanol. The photoluminescence intensityof the core–shell nanocrystals is improved by the treatment with asolution of PbBr<sub>2</sub> and ligands, and their stability in ethanolis extended to several days after applying an additional silica growthstep. Overall, the investigated approach outlines a strategy for makingcolloidal core–shell nanocrystals utilizing the transformative chemistryof metal halides and reveals interesting insights regarding theconditions required for CsPbBr<sub>3</sub>@SiO<sub>2</sub> nanocrystal formation.