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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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Oksenberg, Eitan
Institute for Atomic and Molecular Physics
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2022Sub-nanometer mapping of strain-induced band structure variations in planar nanowire core-shell heterostructures
- 2022Sub-nanometer mapping of strain-induced band structure variations in planar nanowire core-shell heterostructurescitations
- 2022Sub-nanometer mapping of strain-induced band structure variations in planar nanowire core-shell heterostructurescitations
- 2021Deconvoluting Energy Transport Mechanisms in Metal Halide Perovskites Using CsPbBr3 Nanowires as a Model Systemcitations
- 2021Deconvoluting Energy Transport Mechanisms in Metal Halide Perovskites Using CsPbBr3 Nanowires as a Model Systemcitations
- 2021Inducing ferroelastic domains in single-crystal CsPbBr3 perovskite nanowires using atomic force microscopycitations
- 2021Inducing ferroelastic domains in single-crystal CsPbBr3 perovskite nanowires using atomic force microscopycitations
- 2020In Situ Imaging of Ferroelastic Domain Dynamics in CsPbBr3Perovskite Nanowires by Nanofocused Scanning X-ray Diffractioncitations
- 2020Large lattice distortions and size-dependent bandgap modulation in epitaxial halide perovskite nanowirescitations
- 2020Large lattice distortions and size-dependent bandgap modulation in epitaxial halide perovskite nanowirescitations
- 2020In situ imaging of ferroelastic domain dynamics in CsPbBr3perovskite nanowires by nanofocused scanning X-ray diffractioncitations
- 2017Surface-Guided Core-Shell ZnSe@ZnTe Nanowires as Radial p-n Heterojunctions with Photovoltaic Behaviorcitations
- 2017Surface-Guided Core-Shell ZnSe@ZnTe Nanowires as Radial p-n Heterojunctions with Photovoltaic Behaviorcitations
- 2017Guided CdSe Nanowires Parallelly Integrated into Fast Visible-Range Photodetectorscitations
- 2016Guided growth of horizontal p-type ZnTe nanowirescitations
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article
Deconvoluting Energy Transport Mechanisms in Metal Halide Perovskites Using CsPbBr3 Nanowires as a Model System
Abstract
<p>Understanding energy transport in metal halide perovskites is essential to effectively guide further optimization of materials and device designs. However, difficulties to disentangle charge carrier diffusion, photon recycling, and photon transport have led to contradicting reports and uncertainty regarding which mechanism dominates. In this study, monocrystalline CsPbBr<sub>3</sub> nanowires serve as 1D model systems to help unravel the respective contribution of energy transport processes in metal-halide perovskites. Spatially, temporally, and spectrally resolved photoluminescence (PL) microscopy reveals characteristic signatures of each transport mechanism from which a robust model describing the PL signal accounting for carrier diffusion, photon propagation, and photon recycling is developed. For the investigated CsPbBr<sub>3</sub> nanowires, an ambipolar carrier mobility of μ = 35 cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup> is determined, and is found that charge carrier diffusion dominates the energy transport process over photon recycling. Moreover, the general applicability of the developed model is demonstrated on different perovskite compounds by applying it to data provided in previous related reports, from which clarity is gained as to why conflicting reports exist. These findings, therefore, serve as a useful tool to assist future studies aimed at characterizing energy transport mechanisms in semiconductor nanowires using PL.</p>