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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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Kirchartz, Thomas
Forschungszentrum Jülich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024High‐Bandgap Perovskites for Efficient Indoor Light Harvestingcitations
- 2023Characterizing the influence of charge extraction layers on the performance of triple‐cation perovskite solar cellscitations
- 2022Tantalum Oxide as an Efficient Alternative Electron Transporting Layer for Perovskite Solar Cellscitations
- 2021Comment on “Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells”citations
- 2021Pathways toward 30% Efficient Single‐Junction Perovskite Solar Cells and the Role of Mobile Ionscitations
- 2021Roadmap on organic-inorganic hybrid perovskite semiconductors and devicescitations
- 2021Pathways toward 30% efficient single-junction perovskite solar cells and the role of mobile ionscitations
- 2020Photoluminescence-based characterization of halide perovskites for photovoltaicscitations
- 2020Femto- to Microsecond Dynamics of Excited Electrons in a Quadruple Cation Perovskitecitations
- 2020Femto- to Microsecond Dynamics of Excited Electrons in a Quadruple Cation Perovskitecitations
- 2020How To Quantify the Efficiency Potential of Neat Perovskite Films: Perovskite Semiconductors with an Implied Efficiency Exceeding 28%citations
- 2019Charge-Carrier Recombination in Halide Perovskitescitations
- 2019Charge-Carrier Recombination in Halide Perovskites.
- 2019The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cellscitations
- 2019Highly Compact TiO<sub>2</sub> Films by Spray Pyrolysis and Application in Perovskite Solar Cellscitations
- 2019Fermi-level pinning in methylammonium lead iodide perovskitescitations
- 2018Spin-coated planar Sb<sub>2</sub>S<sub>3</sub> hybrid solar cells approaching 5% efficiencycitations
- 2016Physical aspects of ferroelectric semiconductors for photovoltaic solar energy conversioncitations
- 2016Classification of solar cells according to mechanisms of charge separation and charge collectioncitations
- 2013Influence of crystallinity and energetics on charge separation in polymer–inorganic nanocomposite films for solar cellscitations
Places of action
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article
Charge-Carrier Recombination in Halide Perovskites
Abstract
The success of halide perovskites in a host of optoelectronic applications is often attributed to their long photoexcited carrier lifetimes, which has led to charge-carrier recombination processes being described as unique compared to other semiconductors. Here, we integrate recent literature findings to provide a critical assessment of the factors we believe are most likely controlling recombination in the most widely studied halide perovskite systems. We focus on four mechanisms that have been proposed to affect measured charge carrier recombination lifetimes, namely: (1) recombination via trap states, (2) polaron formation, (3) the indirect nature of the bandgap (e.g., Rashba effect), and (4) photon recycling. We scrutinize the evidence for each case and the implications of each process on carrier recombination dynamics. Although they have attracted considerable speculation, we conclude that multiple trapping or hopping in shallow trap states, and the possible indirect nature of the bandgap (e.g., Rashba effect), seem to be less likely given the combined evidence, at least in high-quality samples most relevant to solar cells and light-emitting diodes. On the other hand, photon recycling appears to play a clear role in increasing apparent lifetime for samples with high photoluminescence quantum yields. We conclude that polaron dynamics are intriguing and deserving of further study. We highlight potential interdependencies of these processes and suggest future experiments to better decouple their relative contributions. A more complete understanding of the recombination processes could allow us to rationally tailor the properties of these fascinating semiconductors and will aid the discovery of other materials exhibiting similarly exceptional optoelectronic properties.