| 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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Ducati, Caterina
University of Cambridge
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Ultra-high spin emission from antiferromagnetic FeRhcitations
- 2024Ultra-high spin emission from antiferromagnetic FeRh.
- 20233D Perovskite Passivation with a Benzotriazole-Based 2D Interlayer for High-Efficiency Solar Cellscitations
- 20233D Perovskite Passivation with a Benzotriazole-Based 2D Interlayer for High-Efficiency Solar Cells.
- 20233D perovskite passivation with a benzotriazole-based 2D interlayer for high-efficiency solar cellscitations
- 2022Unveiling the Interaction Mechanisms of Electron and X-ray Radiation with Halide Perovskite Semiconductors using Scanning Nanoprobe Diffractioncitations
- 2022Unveiling the interaction mechanisms of electron and X-ray radiation with halide perovskite semiconductors using scanning nano-probe diffraction
- 2022Unveiling the interaction mechanisms of electron and X-ray radiation with halide perovskite semiconductors using scanning nano-probe diffraction
- 2022Manipulating Color Emission in 2D Hybrid Perovskites by Fine Tuning Halide Segregation: A Transparent Green Emitter.
- 2022Sodium Diffuses from Glass Substrates through P1 Lines and Passivates Defects in Perovskite Solar Modules
- 2021Beyond 17% stable perovskite solar module via polaron arrangement of tuned polymeric hole transport layercitations
- 2021The influence of electrochemical cycling protocols on capacity loss in nickel-rich lithium-ion batteries.
- 2021Using pulsed mode scanning electron microscopy for cathodoluminescence studies on hybrid perovskite films
- 2021Using pulsed mode scanning electron microscopy for cathodoluminescence studies on hybrid perovskite films
- 2021Nanometric Chemical Analysis of Beam-Sensitive Materials: A Case Study of STEM-EDX on Perovskite Solar Cells.
- 2021Manipulating Color Emission in 2D Hybrid Perovskites by Fine Tuning Halide Segregation: A Transparent Green Emittercitations
- 2020Comparison of the ionic conductivity properties of microporous and mesoporous MOFs infiltrated with a Na-ion containing IL mixture.
- 2020Performance-limiting nanoscale trap clusters at grain junctions in halide perovskites.
- 2020Ion Migration‐Induced Amorphization and Phase Segregation as a Degradation Mechanism in Planar Perovskite Solar Cells
- 2019Effect of size on the luminescent efficiency of perovskite nanocrystalscitations
- 2019Electron Microscopy Characterization of P3 Lines and Laser Scribing-Induced Perovskite Decomposition in Perovskite Solar Modules.
- 2018Maximizing and stabilizing luminescence from halide perovskites with potassium passivationcitations
- 2018Maximizing and stabilizing luminescence from halide perovskites with potassium passivation
- 2018Potassium- and Rubidium-Passivated Alloyed Perovskite Films: Optoelectronic Properties and Moisture Stability.
- 2017Chemical vapour deposition of freestanding sub-60 nm graphene gyroidscitations
- 2017Photon Reabsorption in Mixed CsPbCl$_{3}$:CsPbI$_{3}$ Perovskite Nanocrystal Films for Light-Emitting Diodes
- 2016In Situ Heat-Induced Replacement of GaAs Nanowires by Au.
- 2016Efficient perovskite solar cells by metal ion dopingcitations
- 2015Interface and Composition Analysis on Perovskite Solar Cells.
- 2015Interface and Composition Analysis on Perovskite Solar Cellscitations
- 2015Local Versus Long-Range Diffusion Effects of Photoexcited States on Radiative Recombination in Organic-Inorganic Lead Halide Perovskites.
- 2013Catalyst composition and impurity-dependent kinetics of nanowire heteroepitaxy.
- 2012The phase of iron catalyst nanoparticles during carbon nanotube growthcitations
- 2011In Situ Characterization of Alloy Catalysts for Low-Temperature Graphene Growthcitations
Places of action
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article
Photon Reabsorption in Mixed CsPbCl$_{3}$:CsPbI$_{3}$ Perovskite Nanocrystal Films for Light-Emitting Diodes
Abstract
Cesium lead halide nanocrystals, CsPbX$_{3}$ (X = Cl, Br, I), exhibit photoluminescence quantum efficiencies approaching 100% without the core-shell structures usually used in conventional semiconductor nanocrystals. These high photoluminescence efficiencies make these crystals ideal candidates for light-emitting diodes (LEDs). However, because of the large surface area to volume ratio, halogen exchange between perovskite nanocrystals of different compositions occurs rapidly, which is one of the limiting factors for white-light applications requiring a mixture of different crystal compositions to achieve a broad emission spectrum. Here, we use mixtures of chloride and iodide CsPbX$_{3}$ (X = Cl, I) perovskite nanocrystals where anion exchange is significantly reduced. We investigate samples containing mixtures of perovskite nanocrystals with different compositions and study the resulting optical and electrical interactions. We report excitation transfer from CsPbCl$_{3}$ to CsPbI$_{3}$ in solution and within a poly(methyl methacrylate) matrix via photon reabsorption, which also occurs in electrically excited crystals in bulk heterojunction LEDs.